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Anti-interference self-alignment algorithm by attitude optimization estimation for SINS on a rocking base
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作者 XUE Haijian WANG Tao +2 位作者 CAI Xinghui WANG Jintao LIU Fei 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2023年第5期1333-1342,共10页
The performance of a strapdown inertial navigation system(SINS)largely depends on the accuracy and rapidness of the initial alignment.A novel anti-interference self-alignment algorithm by attitude optimization estimat... The performance of a strapdown inertial navigation system(SINS)largely depends on the accuracy and rapidness of the initial alignment.A novel anti-interference self-alignment algorithm by attitude optimization estimation for SINS on a rocking base is presented in this paper.The algorithm transforms the initial alignment into the initial attitude determination problem by using infinite vector observations to remove the angular motions,the SINS alignment is heuristically established as an optimiza-tion problem of finding the minimum eigenvector.In order to further improve the alignment precision,an adaptive recursive weighted least squares(ARWLS)curve fitting algorithm is used to fit the translational motion interference-contaminated reference vectors according to their time domain characteristics.Simulation studies and experimental results favorably demonstrate its rapidness,accuracy and robustness. 展开更多
关键词 strapdown inertial navigation system(SINS) initial alignment anti-interference rocking base adaptive recursive weighted least squares(ARWLS)
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The Research and Application of the Anti-Interference Techniques of Electronic Device in Power System 被引量:1
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作者 吴维宁 张文亮 +1 位作者 吴峡 李建建 《Electricity》 2001年第4期40-43,共4页
This paper presents the study and application of the electronic device anti-interference techniques underhigh voltage and/or heavy current electro-magnetic circumstance in power system.[
关键词 electric power system electronic measurement and/or control device anti-interference measures
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Anti-interference beam pattern design based on second-order cone programming optimization 被引量:1
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作者 戴文舒 鲍凯凯 +1 位作者 王萍 王黎明 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2016年第3期255-260,共6页
When signal-to-interference ratio is low, the energy of strong interference leaked from the side lobe of beam pattern will infect the detection of weak target. Therefore, the beam pattern needs to be op... When signal-to-interference ratio is low, the energy of strong interference leaked from the side lobe of beam pattern will infect the detection of weak target. Therefore, the beam pattern needs to be optimized. The existing Dolph-Chebyshev weighting method can get the lowest side lobe level under given main lobe width, but for the other non-uniform circular array and nonlinear array, the low side lobe pattern needs to be designed specially. The second order cone programming optimization (SOCP) algorithm proposed in the paper transforms the optimization of the beam pattern into a standard convex optimization problem. Thus there is a paradigm to follow for any array formation, which not only achieves the purpose of Dolph-Chebyshev weighting, but also solves the problem of the increased side lobe when the signal is at end fire direction The simulation proves that the SOCP algorithm can detect the weak target better than the conventional beam forming. 展开更多
关键词 anti-interference beam pattern second-order cone programming optimization (SOCP) weak signal detection
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Reconfigurable anti-interference RF transceiver for cognitive radio application
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作者 游长江 柳靖 +1 位作者 张晓东 朱晓维 《Journal of Southeast University(English Edition)》 EI CAS 2011年第2期123-127,共5页
An RF transceiver composed of a zero-IF receiver and a direct up-conversion transmitter for cognitive radio applications is presented. The adjustable channel filter array in the receiver is used to suppress adjacent c... An RF transceiver composed of a zero-IF receiver and a direct up-conversion transmitter for cognitive radio applications is presented. The adjustable channel filter array in the receiver is used to suppress adjacent channel interference in televisions signal coexistence environments. The low noise amplifier (LNA) with wide dynamic range and high linearity is employed to enhance the anti-interference competence of the zero-IF receiver. Meanwhile, the high linearity power amplifier (PA) .is used to promote the adjacent channel power ratio (ACPR) characteristic of the direct up-conversion transmitter. The measured error vector magnitude (EVM) results show that the anti-interference competence of the zero-IF receiver is dramatically enhanced by employing a channel filter array. The measured ACPR of the direct up-conversion transmitter is -47. 98 dBc on the channel centered at 714 MHz when the output power is 27 dBm. 展开更多
关键词 ZERO-IF direct up-conversion anti-interference cognitive radio white space spectrum
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Static-shift suppression and anti-interference signal processing for CSAMT based on Guided Image Filtering 被引量:2
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作者 Enhua Jiang Rujun Chen +2 位作者 Debin Zhu Weiqiang Liu Regean Pitiya 《Earthquake Research Advances》 CSCD 2022年第1期44-55,共12页
Shallow conductive heterogeneity can lead to static shifts ain the apparent resistivity sounding curve of controlled-source audio-frequency magnetotellurics(CSAMT).The static effect will shift the apparent resistivity... Shallow conductive heterogeneity can lead to static shifts ain the apparent resistivity sounding curve of controlled-source audio-frequency magnetotellurics(CSAMT).The static effect will shift the apparent resistivity curves along with axial log-log coordinates.Such an effect,if not properly processed,can distort the resistivity of rock formation and the depth of interfaces,and even make the geological structures unrecognizable.In this paper,we discuss the reasons and characteristics of the static shift and summarize the previous studies regarding static shift correction.Then,we propose the Guided Image Filtering algorithm to suppress static shifts in CSAMT.In detail,we use the multi-window superposition method to superimpose 1D signals into a 2D matrix image,which is subsequently processed with Guided Image Filtering.In the synthetic model study and field examples,the Guided Image Filtering algorithm has effectively corrected and suppressed static shifts,and finally improved the precision of data interpretation. 展开更多
关键词 CSAMT Static shift Guided image filtering anti-interference
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Anti-interference ultra-wideband system based on spreading and interleaving 被引量:1
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作者 Zhang Shibing Zhang Lijun 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2007年第2期236-242,共7页
To suppress the interference in the ultra-wideband (AI-UWB) system is a challenging problem. An anti-interference multiband orthogonal frequency-division multiplexing ultra-wideband (AI-UWB) system, based on sprea... To suppress the interference in the ultra-wideband (AI-UWB) system is a challenging problem. An anti-interference multiband orthogonal frequency-division multiplexing ultra-wideband (AI-UWB) system, based on spreading and interleaving is addressed. It will exploit the frequency diversity across the subcarriers and provide the robustness to narrow-band interference, by spreading the coded bit streams within each sub-band and interleaving across all sub-bands. Simulating results show that the spreading and interleaving provide about 5 dB to 10 dB advantages over the conventional multiband orthogonal frequency-division multiplexing ultra-wideband system in signal-to-interference ratio. Spreading and interleaving is an effective cure for enhancing the robustness to narrowband interference. 展开更多
关键词 Communications technology anti-interference SPREADING INTERLEAVING Ultra-wideband.
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Anti-interference Strategy of 20-Hi Cold Mill Automatic Gauge Control
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作者 ZHANG Zhen ZHU Bingquan CHEN Haifeng 《Instrumentation》 2022年第3期10-18,共9页
Automatic gauge control(AGC in the article)is the key technology of product thickness accuracy and flatness quality in modern cold rolling mill.Most traditional AGC control algorithms need stable external system condi... Automatic gauge control(AGC in the article)is the key technology of product thickness accuracy and flatness quality in modern cold rolling mill.Most traditional AGC control algorithms need stable external system conditions and hard to stabilize under complex interference that meets coverage requirements.This paper presents a new anti-interference strategy for AGC control of 20-Hi cold reversing mill.The proposed algorithm introduces a united dynamic weights algorithm of feed forward-mass flow to avoid the complex interference problem in AGC control,the relevant control strategy is provided to eliminate the adverse effects.At the same time,the D-value between feed forward-mass flow pre-computation and thickness measurement deviation is dynamic compared,the final gap position regulation is calculated by developing a set of united dynamic weights between feed forward control and mass flow control.Finally,the output of controllers is sent to actuator though a constant rate smoothing.The proposed strategy is compared with conventional AGC control on Experimental platform and project application,the results show that the proposed strategy is more stable than comparison method and majority of system uncertainty produced by mentioned interference is significantly eliminated. 展开更多
关键词 20-Hi Cold Mill Complex Interference AGC Control United Dynamic Weights anti-interference
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AIDEDNet:anti-interference and detail enhancement dehazing network for real-world scenes
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作者 Jian ZHANG Fazhi HE +1 位作者 Yansong DUAN Shizhen YANG 《Frontiers of Computer Science》 SCIE EI CSCD 2023年第2期225-235,共11页
The haze phenomenon seriously interferes the image acquisition and reduces image quality.Due to many uncertain factors,dehazing is typically a challenge in image processing.The most existing deep learning-based dehazi... The haze phenomenon seriously interferes the image acquisition and reduces image quality.Due to many uncertain factors,dehazing is typically a challenge in image processing.The most existing deep learning-based dehazing approaches apply the atmospheric scattering model(ASM)or a similar physical model,which originally comes from traditional dehazing methods.However,the data set trained in deep learning does not match well this model for three reasons.Firstly,the atmospheric illumination in ASM is obtained from prior experience,which is not accurate for dehazing real-scene.Secondly,it is difficult to get the depth of outdoor scenes for ASM.Thirdly,the haze is a complex natural phenomenon,and it is difficult to find an accurate physical model and related parameters to describe this phenomenon.In this paper,we propose a black box method,in which the haze is considered an image quality problem without using any physical model such as ASM.Analytically,we propose a novel dehazing equation to combine two mechanisms:interference item and detail enhancement item.The interference item estimates the haze information for dehazing the image,and then the detail enhancement item can repair and enhance the details of the dehazed image.Based on the new equation,we design an antiinterference and detail enhancement dehazing network(AIDEDNet),which is dramatically different from existing dehazing networks in that our network is fed into the haze-free images for training.Specifically,we propose a new way to construct a haze patch on the flight of network training.The patch is randomly selected from the input images and the thickness of haze is also randomly set.Numerous experiment results show that AIDEDNet outperforms the state-of-the-art methods on both synthetic haze scenes and real-world haze scenes. 展开更多
关键词 dehaze anti-interference detail enhancement NETWORK
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Performance Analysis of Anti-Interference UWB-OFDM System 被引量:1
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作者 ZHANG Shi-bing CAO Shi-ke ZHANG Li-jun 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2006年第2期6-9,38,共5页
This paper examines the robustness of anti-interference Ultra-Wide-Band UWB-OFDM (AI-UWB) systems in presence of narrow-band interference. It analyzes the bit error rate performance of the systems in both the single... This paper examines the robustness of anti-interference Ultra-Wide-Band UWB-OFDM (AI-UWB) systems in presence of narrow-band interference. It analyzes the bit error rate performance of the systems in both the single-user and multi-user modes, and compares its robustness in different code matrixes. By encoding transmitted symbols and spreading their power over all sub-bands, AI-UWB systems can make full use of the frequency diversity across the sub-bands and have more robustness to the narrowband interference. Simulating results show that different codes have almost the same robustness to the narrowband interference. The encoding and spreading could suppress the narrowband interference effectively. Compared with the IS-UWB systems, our approach has more than 5 dB interference margin. 展开更多
关键词 UWB anti-interference bit error rate CODING SPREADING
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A study on improving anti-interference capability of inversion method reconstructing layered sea bottom parameters 被引量:1
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作者 LIN Junxuan and WANG Shuquan(Ocean University of Qingdao) 《Chinese Journal of Acoustics》 1990年第2期156-160,共5页
The remote measurement of the vertical distribution of acoustical parameters of the sea bottom is an inverse method in acoustics. The existing methods can be divided into two types: the wave method and the ray method.... The remote measurement of the vertical distribution of acoustical parameters of the sea bottom is an inverse method in acoustics. The existing methods can be divided into two types: the wave method and the ray method. The former usually does not apply to cases with discontinuity in acoustical parameter profiles[1] , whereas the latter usually ignores the contributions made by multiple reflections, resulting in the appearance of pseudo interfaces. However, under certain practical circumstances, the ray method can produce satisfactory results[2,3]. In this paper, at first we use the conception of equitime layer thickness to obtain the pulse response iteration method. The anti-interference capability of this method is poor. In order to improve this capability, we develope the sample iteration method and the sample-averaging iteration method. The sample-averaging iteration method introduces a way of statistical averaging, which can further improve the anti-interference capability. 展开更多
关键词 A study on improving anti-interference capability of inversion method reconstructing layered sea bottom parameters
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Self-powered anti-interference photoelectrochemical immunosensor based on Au/ZIS/CIS heterojunction photocathode with zwitterionic peptide anchoring
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作者 Ze Hu Yaqun Xu +2 位作者 Hao Wang Gao-Chao Fan Xiliang Luo 《Chinese Chemical Letters》 SCIE CAS CSCD 2022年第11期4750-4755,共6页
Accurate detection of important biomarkers with ultra-low levels in complex biological matrix is one of the frontier scientific issues because of possible signal interference of potential reductive agents and protein ... Accurate detection of important biomarkers with ultra-low levels in complex biological matrix is one of the frontier scientific issues because of possible signal interference of potential reductive agents and protein molecules.Herein,a self-powered anti-interference photoelectrochemical(PEC)immunosensor was explored for sensitive and specific detection of model target of cardiac troponinⅠ(cTnI).Specifically,a novel ternary heterojunction served as the photocathode to offer a remarkable current output and a zwitterionic peptide was introduced to build a robust antifouling biointerface.CuInS(CIS)film with porous network nanostructure was first prepared and then modified in order with ZnInS(ZIS)nanocrystals and Au nanoparticles to fabricate the Au/ZIS/CIS heterojunction photocathode.After capture cTnI antibody(Ab)was immobilized,the zwitterionic peptide KAEAKAEAPPPPC was then anchored to compete the immunosensor.The elaborated PEC immunosensor exhibited high sensitivity for target cTnI antigen(Ag)detection,with good anti-interference against reductive agents and nonspecific proteins.This integration strategy of heterojunction photocathode with zwitterionic peptide provides a new sight to develop advanced PEC immunosensors applying in practical biosamples. 展开更多
关键词 PHOTOELECTROCHEMISTRY Immunoassay Zwitterionic peptide PHOTOCATHODE anti-interference
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An Anti-Interference Coding in UWB-OFDMCommunications
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作者 ZHANG Shi-bing CAO Shi-ke ZHANG Li-jun 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2005年第4期32-37,共6页
An anti-interference orthogonal coding is introduced based on Hadamard code and Orthogonal Frequency-Division Multiplexing (OFDM), in which all sub-channels of Ultra-WideBand (UWB) system are divided into M sub-ba... An anti-interference orthogonal coding is introduced based on Hadamard code and Orthogonal Frequency-Division Multiplexing (OFDM), in which all sub-channels of Ultra-WideBand (UWB) system are divided into M sub-bands and the power of the every transmitted symbol spreads over each of the sub-bands rather than one sub-band. The complete mathematical analytical relation between encoding and decoding is present and the robustness of the system to interference is examined. When some sub-channels are affected by interference or jamming, the system could regenerate the symbol from others. Simulation results show that the Anti-Interference UWB-OFDM (AI-OFDM) system has evident advantages over conventional UWB-OFDM systems as well as the Interference Suppressing UWB-OFDM (IS-OFDM) in Bit Error Rate (BER) thanks to its robustness to interference. In the case of bad interference, the AI-OFDM system could work up to snuff without any anti-interference step, but the conventional UWB-OFDM system couldn't. Compared with the ISOFDM system, the AI-OFDM system improves the performance about 5 dB in Signal-to-Interference Ratio (SIR) and the order of 1-2 in BER. 展开更多
关键词 ULTRA-WIDEBAND anti-interference CODING OFDM
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A Synchronization Acquisition Algorithm Based on the Frequency Hopping Pulses Combining
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作者 She Honghan Cheng Yufan +4 位作者 Zhang Wenzihan Zhang Yaohui Zhao Yuheng Shen Haoran Mou Ying 《China Communications》 SCIE CSCD 2024年第4期74-87,共14页
As modern electromagnetic environments are more and more complex,the anti-interference performance of the synchronization acquisition is becoming vital in wireless communications.With the rapid development of the digi... As modern electromagnetic environments are more and more complex,the anti-interference performance of the synchronization acquisition is becoming vital in wireless communications.With the rapid development of the digital signal processing technologies,some synchronization acquisition algorithms for hybrid direct-sequence(DS)/frequency hopping(FH)spread spectrum communications have been proposed.However,these algorithms do not focus on the analysis and the design of the synchronization acquisition under typical interferences.In this paper,a synchronization acquisition algorithm based on the frequency hopping pulses combining(FHPC)is proposed.Specifically,the proposed algorithm is composed of two modules:an adaptive interference suppression(IS)module and an adaptive combining decision module.The adaptive IS module mitigates the effect of the interfered samples in the time-domain or the frequencydomain,and the adaptive combining decision module can utilize each frequency hopping pulse to construct an anti-interference decision metric and generate an adaptive acquisition decision threshold to complete the acquisition.Theory and simulation demonstrate that the proposed algorithm significantly enhances the antiinterference and anti-noise performances of the synchronization acquisition for hybrid DS/FH communications. 展开更多
关键词 adaptive anti-interference frequency hopping synchronization acquisition
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Application of pseudo-random frequency domain electromagnetic method in mining areas with strong interferences 被引量:7
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作者 Yan-fang HU Di-quan LI +2 位作者 Bo YUAN Guang-yun SUO Zi-jie LIU 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2020年第3期774-788,共15页
Due to the strong electromagnetic interferences and human interference,traditional electromagnetic methods cannot obtain high quality resistivity data of mineral deposits in Chinese mines.The wide field electromagneti... Due to the strong electromagnetic interferences and human interference,traditional electromagnetic methods cannot obtain high quality resistivity data of mineral deposits in Chinese mines.The wide field electromagnetic method(WFEM),in which the pseudo-random signal is taken as the transmitter source,can extract high quality resistivity data in areas with sever interference by only measuring the electric field component.We use the WFEM to extract the resistivity information of the Dongguashan mine in southeast China.Compared with the audio magnetotelluric(AMT)method,and the controlled source audio-frequency magnetotelluric(CSAMT) method,the WFEM can obtain data with higher quality and simpler operations.The inversion results indicate that the WFEM can accurately identify the location of the main ore-body,which can be used for deep mine exploration in areas with strong interference. 展开更多
关键词 pseudo-random signal frequency domain electromagnetic method wide field electromagnetic method(WFEM) strong interference anti-interference capability Dongguashan copper deposit
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Modeling and Analysis the Effects of EMP on the Balise System 被引量:3
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作者 Zhiwei Gao Shuai Zhang +1 位作者 Li Hao Ning Cao 《Computers, Materials & Continua》 SCIE EI 2019年第3期859-878,共20页
Balise system is one kind of high-rate point-mode data transmission equipment.It plays an indispensable role in Chinese Train Control System(CTCS),and it has been immigrated and widely used for passenger dedicated lin... Balise system is one kind of high-rate point-mode data transmission equipment.It plays an indispensable role in Chinese Train Control System(CTCS),and it has been immigrated and widely used for passenger dedicated lines and high-speed lines.Thus,its working conditions directly affect train operation safety.However,the balise information transmission system(BITS)is based on the principle of electromagnetic induction,and the communication process is susceptible to external electromagnetic interference.Therefore,it is vital to study the influence of transient signal interference on the balise system.This paper builds the up-link model between the vehicle antena and the balise,and verifies the model’s correctness using finite-difference time-domain method and electromagnetic field theory.This paper analyzes the effect of electromagnetic pulses on the transponder’s uplink and simulates the coupled current under irradiation.The spectral distribution of the three types of pulse interference is analyzed according to relevant standards.Strong electromagnetic pulses have a strong energy distribution in the working frequency band of the up-link,which will generate in-band interference and bit errors.It will affect the balise communication and threaten the safety of train operation.As we know we are the first to analyze the effects of EMP on Chinese BITS,which will lay a foundation for the research of electromagnetic anti-interference or protection to highspeed railway. 展开更多
关键词 Balise system BTM EMP electromagnetic anti-interference.
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INVESTIGATION OF VORTEX SHEDDING INDUCED HYDRODYNAMIC VIBRATION IN VORTEX STREET FLOWMETER 被引量:2
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作者 Fu Xin,Xu Bing,Yang Huayong (State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University) 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2001年第4期310-313,共4页
Vortex street flowmeter has been used in steady flow measurement for about three decades The benefits of this type of flowmeter include high accuracy,good linearty,wide measuring range,and excellent reliability Ho... Vortex street flowmeter has been used in steady flow measurement for about three decades The benefits of this type of flowmeter include high accuracy,good linearty,wide measuring range,and excellent reliability However,in unsteady flow measurement,the pressure disturbance as well as the noise from the system or surrounding can reduce the signal to noise ratio of the flowmeter seriously Aimed to use vortex street flowmeters in unsteady flow measurement,the characteristics of the vortex shedding induced hydrodynamic vibration around the prism bluff body in a vortex street flowmeter are investigated numerically and by expriments The results show that the hydrodynamic vibrations with 180° phase shift occur at the axisymmetric points of the channel around the bluff body The most intense vibration occurs at the points on the lateral faces close to the base of the prism The results provide therefore a useful reference for developing an anti interference vortex flowmeter using the different ial sensing technique. 展开更多
关键词 Vortex street flowmeter Vortex shedding induced hydrodynamic vibration Unsteady flow measurement anti-interference performance
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LDPC Code’s Decoding Algorithms for Wireless Sensor Network:a Brief Review
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作者 Weidong Fang Wuxiong Zhang +2 位作者 Lianhai Shan Biruk Assefa Wei Chen 《Journal of New Media》 2019年第1期45-50,共6页
As an effective error correction technology,the Low Density Parity Check Code(LDPC)has been researched and applied by many scholars.Meanwhile,LDPC codes have some prominent performances,which involves close to the Sha... As an effective error correction technology,the Low Density Parity Check Code(LDPC)has been researched and applied by many scholars.Meanwhile,LDPC codes have some prominent performances,which involves close to the Shannon limit,achieving a higher bit rate and a fast decoding.However,whether these excellent characteristics are suitable for the resource-constrained Wireless Sensor Network(WSN),it seems to be seldom concerned.In this article,we review the LDPC code’s structure brief.ly,and them classify and summarize the LDPC codes’construction and decoding algorithms,finally,analyze the applications of LDPC code for WSN.We believe that our contributions will be able to facilitate the application of LDPC code in WSN. 展开更多
关键词 Wireless Sensor Network(WSN) Low Density Parity Check Code(LDPC) anti-interference soft decision hard decision
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Research on the Precision Instrument Reliability and Antiinterference Mode from the Intrusion Detection Angle based on Rough Set
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作者 Jinping Tan Renqing Li 《International Journal of Technology Management》 2016年第7期68-70,共3页
In this paper, we conduct research on precision instrument reliability and anti-interference mode from the intrusion detectionangle based on rough set. Ultra-precision machining applications range from soft metal to h... In this paper, we conduct research on precision instrument reliability and anti-interference mode from the intrusion detectionangle based on rough set. Ultra-precision machining applications range from soft metal to hardened steel, stainless steel, high speed steel,cemented carbide and some other hard processing material, to the semiconductor, glass, ceramics and the other hard brittle non-metallic materials,almost all materials available ultra-precision machining technology for the processing. To enhance the robustness of the mentioned equipment,we consider the integration of the rough set and intrusion detection to modify the corresponding issues that will optimize the traditional methodsfrom systematical level which holds special signifi cance. 展开更多
关键词 Rough Set Intrusion Detection Precision Instrument anti-interference Mode.
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Optical Sensor with Wide Range and High Sensitivity for Internal Magnetic Field Detection of Transformer
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作者 Meng Huang Wei Zheng +3 位作者 Tong Ji Mao Ji Tianjiao Pu Bo Qi 《CSEE Journal of Power and Energy Systems》 SCIE EI CSCD 2024年第5期2230-2244,共15页
The deterioration of winding defects is one of the important causes of power transformer fires and even explosion failures.The change of leakage magnetic field distribution is the most direct response to winding defec... The deterioration of winding defects is one of the important causes of power transformer fires and even explosion failures.The change of leakage magnetic field distribution is the most direct response to winding defects.Currently there are few sensors suitable for online measurement of the internal magnetic field of transformers.Based on the Faraday magneto-optical effect,a magnetic field sensor with wide range and high sensitivity is proposed in this paper,which is suitable for the interior use of transformers.The straight-through optical structure with interior polarizer is adopted,and the sensor has a measurement range of 1.5 T and a sensitivity of 1 mT.It also possesses a small size,with a length of about 30 mm after encapsulation.The influence mechanism of vibration and temperature is revealed through theoretical analysis and numerical simulation.It is proposed to filter out the interference of vibration by characteristic frequency analysis and to compensate for temperature by a two-probe structure.An anti-interference test verifies the effectiveness of this method,and it can reduce the error from 80.56%to 2.63%under the combined interference of vibration and temperature. 展开更多
关键词 anti-interference Bessel function Faraday magneto-optical effect leakage magnetic field TRANSFORMER two-probe structure
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Sensitive and selective electrochemical sensor for the detection of dopamine by using AuPd@Fe_(2)O_(3) nanoparticles as catalyst
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作者 Mengjiao Dai Qunyan Zhu +2 位作者 Dongxue Han Li Niu Zhenxin Wang 《Advanced Sensor and Energy Materials》 2023年第1期24-31,共8页
The levels of dopamine(DA)in living organisms have strong effects on many biological processes and diseases,such as Parkinson's disease and Alzheimer's disease.Therefore,it has great significance for sensitive... The levels of dopamine(DA)in living organisms have strong effects on many biological processes and diseases,such as Parkinson's disease and Alzheimer's disease.Therefore,it has great significance for sensitive and selective detection of DA.Herein,the AuPd@Fe_(2)O_(3) nanoparticles-based electrochemical(EC)sensor(AuPd@Fe_(2)O_(3) NPs/GCE)is developed for chronoamperometric detection of DA with high sensitivity and good anti-interference ability through simple immobilization of AuPd@Fe_(2)O_(3) nanoparticles on glassy carbon electrode(GCE)by Nafion.Under the application of oxidation potential,the AuPd@Fe_(2)O_(3) NPs/GCE exhibits good electrocatalytic activity toward DA,which enables to linearly detect DA in the range of 10 nM–831.61μM(R^(2)=0.9983).The AuPd@Fe_(2)O_(3) NPs/GCE also shows good selectivity and reproducibility for the detection of DA.Furthermore,the practicability of AuPd@Fe_(2)O_(3) NPs/GCE has been demonstrated by detection of DA in dopamine hydrochloride injection and human serum. 展开更多
关键词 Electrochemical sensor AuPd@Fe_(2)O_(3)nanoparticles Dopamine High sensitivity Good anti-interference ability
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