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Spatial diversion and coordination of flood water for an urban flood control project in Suzhou, China
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作者 Yu Xu You-peng Xu +2 位作者 Qiang Wang Yue-feng Wang Chao Gao 《Water Science and Engineering》 EI CAS CSCD 2024年第2期108-117,共10页
Suzhou City,located in the Yangtze River Delta in China,is prone to flooding due to a complex combination of natural factors,including its monsoon climate,low elevation,and tidally influenced position,as well as inten... Suzhou City,located in the Yangtze River Delta in China,is prone to flooding due to a complex combination of natural factors,including its monsoon climate,low elevation,and tidally influenced position,as well as intensive human activities.The Large Encirclement Flood Control Project(LEFCP)was launched to cope with serious floods in the urban area.This project changed the spatiotemporal pattern of flood processes and caused spatial diversion of floods from the urban area to the outskirts of the city.Therefore,this study developed a distributed flood simulation model in order to understand this transition of flood processes.The results revealed that the LEFCP effectively protected the urban areas from floods,but the present scheduling schemes resulted in the spatial diversion of floods to the outskirts of the city.With rainstorm frequencies of 10.0%to 0.5%,the water level differences between two representative water level stations(Miduqiao(MDQ)and Fengqiao(FQ))located inside and outside the LEFCP area,ranged from 0.75 m to 0.24 m and from 1.80 m to 1.58 m,respectively.In addition,the flood safety margin at MDQ and the duration with the water level exceeding the warning water level at FQ ranged from 0.95 m to 0.43 m and from 4 h to 22 h,respectively.Rational scheduling schemes for the hydraulic facilities of the LEFCP in extreme precipitation cases were developed ac-cording to food simulations under seven scheduling scenarios.This helps to regulate the spatial flood diversion caused by the LEFCP during extreme precipitation. 展开更多
关键词 Urban flooding Urban flood control project Rainstorm fregue ncy Flood simulation model Suzhou City
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Study on Safeguard System of Eco-tourism Compensation of Hukou Section during Ecological Water-control Project of Poyang Lake 被引量:1
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作者 龚双双 沈中印 +1 位作者 孙冬英 杨云仙 《Journal of Landscape Research》 2010年第12期58-62,72,共6页
Through analysis on the background to develop eco-tourism and necessity for ecological compensation,based on specific condition of Hukou County,in line with the situation to develop eco-tourism during ecological water... Through analysis on the background to develop eco-tourism and necessity for ecological compensation,based on specific condition of Hukou County,in line with the situation to develop eco-tourism during ecological water control project of Poyang Lake,residents' interest protection system and ecological benefit safeguard system for eco-tourism compensation were put forward. 展开更多
关键词 Poyang Lake ECOLOGICAL WATER control project ECO-TOURISM COMPENSATION Hukou SECTION
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Study on Disease Distribution and Test Results of Tuberculosis of Regional Control Project in Guangxi, China
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作者 Guosheng Su Lida Mo +3 位作者 Xiaolu Luo Wanhong Huang Shanqiu Wei Hanzhen Su 《Advances in Infectious Diseases》 2015年第4期125-131,共7页
The purpose of this study is to investigate the disease distribution of tuberculosis in national regional project. 960 patients were selected from national tuberculosis control program who took treatments in the Fourt... The purpose of this study is to investigate the disease distribution of tuberculosis in national regional project. 960 patients were selected from national tuberculosis control program who took treatments in the Fourth People’s Hospital Clinical Laboratory in Nanning Guangxi from January to November in 2013. Then we observed all those patients’ disease distribution and analyzed all the lab test indexes. We analyzed the results according to gender and age distribution. From the age distribution, we found that the incidence was lower at the age of 40 or younger, while higher incidence occurred to patients over 40 years old. There is statistical significance comparing these two age groups. P is less than 0.001. Disease distribution: 731 patients were infected with TB;21 patients were co-infected with tuberculosis (TB) and HIV. 196 patients were co-infected with TB and fungal. 12 patients were co-infected with TB, HIV and fungal. From the laboratory testing, we know there were 87 patients whose liver function indexes were abnormal. There were 192 patients whose blood RT indexes were abnormal. The liver function and blood RT indexes of patients with co-infection were higher than those infected purely. There is statistical significance in comparison P < 0.05. The study indicates that patients with older age are more likely infected with tuberculosis. In addition, there are a high proportion of patients with co-infection among these patients in this study. Meanwhile, the liver functions and blood RT indexes of patients combining with infection are higher than those infected TB purely. Prompt clinical prevention and treatment should be under reasonable inspections. General analysis can enable us to investigate more effective treatment plan. Then the best treatment result will be obtained. 展开更多
关键词 National TUBERCULOSIS control project TUBERCULOSIS (TB) HIV FUNGI (FV) Combined with INFECTION
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The Progress Report of the World Bank Loaned China Tuberculosis Control Project 被引量:1
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作者 Zhao Fengzeng et al. Tuberculosis Control Project Office of the MOPH, Beijing 100025. 《Chinese Medical Journal》 SCIE CAS CSCD 1995年第9期82-82,共1页
The progress of the World Bank loaned TB control project implemented from the second quarter of 1991 to the fourth quarter of 1993 was reported in this paper. In the past three years, 737 counties of the 12 provinces ... The progress of the World Bank loaned TB control project implemented from the second quarter of 1991 to the fourth quarter of 1993 was reported in this paper. In the past three years, 737 counties of the 12 provinces with the popula- 展开更多
关键词 World The Progress Report of the World Bank Loaned China Tuberculosis control project
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Analysis of debris flow control effect and hazard assessment in Xinqiao Gully,Wenchuan M_(s)8.0 earthquake area based on numerical simulation 被引量:1
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作者 Chang Yang Yong-bo Tie +3 位作者 Xian-zheng Zhang Yan-feng Zhang Zhi-jie Ning Zong-liang Li 《China Geology》 CAS CSCD 2024年第2期248-263,共16页
Xinqiao Gully is located in the area of the 2008 Wenchuan M_(s)8.0 earthquake in Sichuan province,China.Based on the investigation of the 2023"6-26"Xinqiao Gully debris flow event,this study assessed the eff... Xinqiao Gully is located in the area of the 2008 Wenchuan M_(s)8.0 earthquake in Sichuan province,China.Based on the investigation of the 2023"6-26"Xinqiao Gully debris flow event,this study assessed the effectiveness of the debris flow control project and evaluated the debris flow hazards.Through field investigation and numerical simulation methods,the indicators of flow intensity reduction rate and storage capacity fullness were proposed to quantify the effectiveness of the engineering measures in the debris flow event.The simulation results show that the debris flow control project reduced the flow intensity by41.05%to 64.61%.The storage capacity of the dam decreases gradually from upstream to the mouth of the gully,thus effectively intercepting and controlling the debris flow.By evaluating the debris flow of different recurrence intervals,further measures are recommended for managing debris flow events. 展开更多
关键词 Landslide Debris flow Hazard assessment Numerical simulation OpenLISEM Prevention and control project Wenchuan M_(s)8.0 earthquake Xinqiao Gully Sichuan province Geological hazards survey engineering
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Projective synchronization of a hyperchaotic system via periodically intermittent control 被引量:2
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作者 黄军建 李传东 +1 位作者 张伟 韦鹏程 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第9期156-160,共5页
We further study the projective synchronization of a new hyperchaotic system. Different from the most existing methods, intermittent control is applied to chaotic synchronization in the present paper. We formulate the... We further study the projective synchronization of a new hyperchaotic system. Different from the most existing methods, intermittent control is applied to chaotic synchronization in the present paper. We formulate the intermittent control system that governs the dynamics of the projective synchronization error, then derive the sufficient conditions for the exponential stability of intermittent control system by using the Lyapunov stability theory, and finally establish the periodically intermittent controller according to the stability criterion by which the projective synchronization is expected to be achieved. The analytical results are also demonstrated by several numerical simulations. 展开更多
关键词 intermittent control hyperchaotic system projective synchronization
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Thailand's economic growth and structural development projections in the context of environmental control 被引量:1
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作者 Sompote Kunnoot 《Chinese Journal of Population,Resources and Environment》 2015年第3期272-280,共9页
Projections for 20 years of economic growth and change in the structure of the Thai economy were made for 180 sectors using a computable general equilibrium(CGE) model to compare the following four scenarios:(1) stand... Projections for 20 years of economic growth and change in the structure of the Thai economy were made for 180 sectors using a computable general equilibrium(CGE) model to compare the following four scenarios:(1) standard growth with infinite supply of factors,(2) finite land supply,(3) fixed use of agricultural chemicals,and(4) combined finite land supply with fixed use of agricultural chemicals.The computable projections suggest that the economic cost of hypothetical environmental control in agriculture is small and further weakened by urbanization.The computed structural development points to efficiency improvements specific to sectors to return the economy to balanced growth. 展开更多
关键词 STRUCTURAL development ENVIRONMENTAL control ECONOMIC growth projectION
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Control and Management of Construction Project Cost 被引量:1
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作者 ZHU Lili 《Journal of Landscape Research》 2016年第4期7-8,共2页
Project cost can control the input in construction project and improve economic benefits of construction enterprises,so it is an important section of construction engineering.Reasonable control and management of proje... Project cost can control the input in construction project and improve economic benefits of construction enterprises,so it is an important section of construction engineering.Reasonable control and management of project cost is the principle that building units must obey in the whole process of project,particularly in the construction stage,so it is extremely important to control and manage the project cost.This paper first analyzed possible causes for the unreasonable cost of construction projects,and put forward pertinent strategies for the control and management of construction project cost. 展开更多
关键词 Construction project Construction stage project cost control and management
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The Project Cost Control of China Thermal Power Project
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作者 Lei Xueqin(Techno-economic Department, CPECC) 《Electricity》 1999年第2期41-43,共3页
关键词 The project Cost control of China Thermal Power project
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Benefit Evaluation Model of Small Watershed Control Based on Projection Pursuit
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作者 JINJu-liang FUQiang 《Journal of Northeast Agricultural University(English Edition)》 CAS 2001年第2期128-132,共5页
A projection pursuit model is presented in this paper for comprehensive evaluation of benefits of small watershed control.By using the model,small watershed control samples with many benefit evaluation indexes can be ... A projection pursuit model is presented in this paper for comprehensive evaluation of benefits of small watershed control.By using the model,small watershed control samples with many benefit evaluation indexes can be synthesized projective values with one dimension.The samples can be naturally evaluated according to the projective values.The parameters of the model is optimized by using real coding beased accelerating genetic aglrothm,which overcomes the shortcomings of large computation amount and difficulty of computer programming in traditional projection prusuit methods,and provides a new way for wide applications of projection pursuit technique to different evaluation problems in agricultural systems engineering. 展开更多
关键词 small watershed control benefit evaluation projection pursuit genetic algorithm
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借鉴Project Controlling模式浅析监理智动化的战略发展
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作者 古涛 《陕西建筑》 2022年第1期54-61,共8页
本文从我国监理行业现存的突出问题入手,提出了监理行业亟待进行战略选择的观点;通过利用PEST战略分析工具对监理行业发展方向进行初步战略分析,确定监理工作的核心战略点可借鉴Project Controlling模式,提升监理的智能化和科技化比重,... 本文从我国监理行业现存的突出问题入手,提出了监理行业亟待进行战略选择的观点;通过利用PEST战略分析工具对监理行业发展方向进行初步战略分析,确定监理工作的核心战略点可借鉴Project Controlling模式,提升监理的智能化和科技化比重,提出监理智动化的战略构想,继而通过SWOT分析印证该战略构想的实用性。 展开更多
关键词 PEST分析 project controlling模式 监理智动化 SWOT分析
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Project risk control of underground engineering geological disaster in pumped-storage power station
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作者 Luo Shaoji 《Engineering Sciences》 EI 2014年第3期2-8,共7页
This paper introduced the construction of the pumped-storage power station (PSPS). In the excava- tion of underground power house, the principle of excavation in thin layer and support in time with real time monitor... This paper introduced the construction of the pumped-storage power station (PSPS). In the excava- tion of underground power house, the principle of excavation in thin layer and support in time with real time monitoring are adopted. The excavation blasting parameters are adjusted timely. Through these, the excavation quality can be guaranteed, the surrounding rock can be prevented from being damaged and the deformation of power house side wall can be controlled. Five security defense lines have been adopted to solve anti-seepage and drainage in the major underground projects. 展开更多
关键词 PSPS TUNNEL : project RISK control drainage control SYSTEM
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Generalized projective synchronization of chaotic systems via adaptive learning control 被引量:19
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作者 孙云平 李俊民 +1 位作者 王江安 王辉林 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第2期119-126,共8页
In this paper, a learning control approach is applied to the generalized projective synchronisation (GPS) of different chaotic systems with unknown periodically time-varying parameters. Using the Lyapunov--Krasovski... In this paper, a learning control approach is applied to the generalized projective synchronisation (GPS) of different chaotic systems with unknown periodically time-varying parameters. Using the Lyapunov--Krasovskii functional stability theory, a differential-difference mixed parametric learning law and an adaptive learning control law are constructed to make the states of two different chaotic systems asymptotically synchronised. The scheme is successfully applied to the generalized projective synchronisation between the Lorenz system and Chen system. Moreover, numerical simulations results are used to verify the effectiveness of the proposed scheme. 展开更多
关键词 generalized projective synchronisation chaotic systems adaptive learning control Lyapunov--Krasovskii functional
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A Study on Cost Control of Agricultural Water Conservancy Projects Based on Activity-based Costing
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作者 Tiantian TANG 《Asian Agricultural Research》 2017年第7期11-14,共4页
Based on the theory of activity-based costing and the idea of value chain,activity optimization and cost control are carried out on the whole construction process of agricultural water conservancy projects. Through th... Based on the theory of activity-based costing and the idea of value chain,activity optimization and cost control are carried out on the whole construction process of agricultural water conservancy projects. Through the use of literature review,case analysis and statistical analysis and other methods,with agricultural water conservancy projects as the research object,and comparing activity-based costing with the traditional model of cost accounting,the writer carries out the corresponding value chain analysis,and comes to the following conclusion: the statistical calculation and analysis of the entire construction process based on activity-based costing can accurately and effectively control the costs of water conservancy projects. Through the use of activity-based costing,the cost data of agricultural water conservancy projects is more detailed and accurate,and cost management personnel can also find non-value-added activities,optimize the enterprise's value chain and achieve cost control objectives through the analysis of the activity chain and value chain of agricultural water conservancy projects. 展开更多
关键词 Activity-based costing Agricultural water conservancy projects Cost control
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A Study on the Control Technique of Construction Project Process
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作者 Changming Hu Shaoping Zhang Xueyan Wang 《Engineering(科研)》 2013年第3期303-308,共6页
The construction process control of large-scale projects is one of the difficulties and keys in the owner’s project management. Based on generalization process index, this paper proposes an approach to construction p... The construction process control of large-scale projects is one of the difficulties and keys in the owner’s project management. Based on generalization process index, this paper proposes an approach to construction project process control. The paper elaborates on the concept and calculation of generalization process index, which, on analysis, possesses Markov property. Monthly generalization process index is regarded as a state of Markov chain, and the transition between different states is realized by computer simulation. According to the Markov process forecasting model and by means of MATLAB program, the project process forecast is realized, and the completion probability in contract period is obtained. From practical instances, it is concluded that this approach has good applicability and operability and that the obtained results can reflect the degree of project risks. 展开更多
关键词 GENERALIZATION PROCESS INDEX MARKOV COMPUTER STIMULATION project PROCESS control
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Generalized projective synchronization of the fractional-order chaotic system using adaptive fuzzy sliding mode control 被引量:3
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作者 王立明 唐永光 +1 位作者 柴永泉 吴峰 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第10期64-70,共7页
An adaptive fuzzy sliding mode strategy is developed for the generalized projective synchronization of a fractional- order chaotic system, where the slave system is not necessarily known in advance. Based on the desig... An adaptive fuzzy sliding mode strategy is developed for the generalized projective synchronization of a fractional- order chaotic system, where the slave system is not necessarily known in advance. Based on the designed adaptive update laws and the linear feedback method, the adaptive fuzzy sliding controllers are proposed via the fuzzy design, and the strength of the designed controllers can he adaptively adjusted according to the external disturbances. Based on the Lya- punov stability theorem, the stability and the robustness of the controlled system are proved theoretically. Numerical simu- lations further support the theoretical results of the paper and demonstrate the efficiency of the proposed method. Moreover, it is revealed that the proposed method allows us to manipulate arbitrarily the response dynamics of the slave system by adjusting the desired scaling factor λi and the desired translating factor ηi, which may be used in a channel-independent chaotic secure communication. 展开更多
关键词 generalized projective chaos synchronization fuzzy sliding mode control fractional order chaoticsystem
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A Novel Method for Assessing and Optimizing Software Project Process Based Risk Control
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作者 JIANG Wei-jin XU Yu-sheng XU Yu-hui 《Wuhan University Journal of Natural Sciences》 EI CAS 2006年第1期289-293,共5页
A new approach for assessing and optimizing software project process based on software risk control presented, which evaluates and optimizes software project process from the view of controlling the software project r... A new approach for assessing and optimizing software project process based on software risk control presented, which evaluates and optimizes software project process from the view of controlling the software project risks. A model for optimizing software risk control is given, a discrete optimization algorithm based on dynamic programruing is proposed and an example of using above method to solve a problem is also included in this paper. By improving the old passive post-project control into an active effective preaction, this new method can greatly promote the possibility of success of software projects. 展开更多
关键词 software process project management software risk risk control
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Particle Swarm-Based Translation Control for Immersed Tunnel Element in the Hong Kong–Zhuhai–Macao Bridge Project 被引量:2
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作者 LI Jun-jun YANG Xiao-jun +2 位作者 XIAO Ying-jie XU Bo-wei WU Hua-feng 《China Ocean Engineering》 SCIE EI CSCD 2018年第1期32-40,共9页
Immersed tunnel is an important part of the Hong Kong–Zhuhai–Macao Bridge(HZMB) project. In immersed tunnel floating, translation which includes straight and transverse movements is the main working mode. To decide ... Immersed tunnel is an important part of the Hong Kong–Zhuhai–Macao Bridge(HZMB) project. In immersed tunnel floating, translation which includes straight and transverse movements is the main working mode. To decide the magnitude and direction of the towing force for each tug, a particle swarm-based translation control method is presented for non-power immersed tunnel element. A sort of linear weighted logarithmic function is exploited to avoid weak subgoals. In simulation, the particle swarm-based control method is evaluated and compared with traditional empirical method in the case of the HZMB project. Simulation results show that the presented method delivers performance improvement in terms of the enhanced surplus towing force. 展开更多
关键词 immersed tunnel element translation control Hong Kong–Zhuhai–Macao Bridge(HZMB) project particle swarm optimization
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Temperature Control System with Multi-closed Loops for Lithography Projection Lens 被引量:4
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作者 NIE Hongfei LI Xiaoping HE Yan 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2009年第2期207-213,共7页
Image quality is one of the most important specifications of optical lithography tool and is affected notably by temperature, vibration, and contamination of projection lens(PL). Traditional method of local temperat... Image quality is one of the most important specifications of optical lithography tool and is affected notably by temperature, vibration, and contamination of projection lens(PL). Traditional method of local temperature control is easier to introduce vibration and contamination, so temperature control system with multi-closed loops is developed to control the temperature inside the PL, and to isolate the influence of vibration and contamination. A new remote indirect-temperature-control(RITC) method is proposed in which cooling water is circulated to perform indirect-temperature-control of the PL. Heater and cooler embedded temperature control unit(TCU) is used to condition the temperature of the cooling water, and the TCU must be kept away from the PL so that the influence of vibration and contamination can be avoided. A new multi-closed loops control structure incorporating an internal cascade control structure(CCS) and an external parallel cascade control structure(PCCS) is designed to prevent large inertia, multi-delay, and multi-disturbance of the RITC system. A nonlinear proportional-integral(PI) algorithm is applied to further enhance the convergence rate and precision of the control process. Contrast experiments of different control loops and algorithms were implemented to verify the impact on the control performance. It is shown that the temperature control system with multi-closed loops reaches a precision specification at ±0.006 ℃ with fast convergence rate, strong robustness, and self-adaptability. This method has been successfully used in an optical lithography tool which produces a pattern of 100 nm critical dimension(CD), and its performances are satisfactory. 展开更多
关键词 projection lens remote indirect-temperature-control cascade control structure parallel cascade control structure nonlinear proportional-integral(PI) algorithm
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Consensus Control With a Constant Gain for Discrete-time Binary-valued Multi-agent Systems Based on a Projected Empirical Measure Method 被引量:5
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作者 Ting Wang Min Hu Yanlong Zhao 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2019年第4期1052-1059,共8页
This paper studies the consensus control of multiagent systems with binary-valued observations.An algorithm alternating estimation and control is proposed.Each agent estimates the states of its neighbors based on a pr... This paper studies the consensus control of multiagent systems with binary-valued observations.An algorithm alternating estimation and control is proposed.Each agent estimates the states of its neighbors based on a projected empirical measure method for a holding time.Based on the estimates,each agent designs the consensus control with a constant gain at some skipping time.The states of the system are updated by the designed control,and the estimation and control design will be repeated.For the estimation,the projected empirical measure method is proposed for the binary-valued observations.The algorithm can ensure the uniform boundedness of the estimates and the mean square error of the estimation is proved to be at the order of the reciprocal of the holding time(the same order as that in the case of accurate outputs).For the consensus control,a constant gain is designed instead of the stochastic approximation based gain in the existing literature for binary-valued observations.And,there is no need to make modification for control since the uniform boundedness of the estimates ensures the uniform boundedness of the agents’states.Finally,the systems updated by the designed control are proved to achieve consensus and the consensus speed is faster than that in the existing literature.Simulations are given to demonstrate the theoretical results. 展开更多
关键词 Binary-valued observations CONSENSUS control CONSTANT GAIN convergence rate multi-agent systems projected empirical measure method
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