In this paper, a novel simple detector is designed to remove the intra-signal interference in high efficiency differential chaos shift keying （HE-DCSK） modulation scheme. With the help of data bit estimated before c...In this paper, a novel simple detector is designed to remove the intra-signal interference in high efficiency differential chaos shift keying （HE-DCSK） modulation scheme. With the help of data bit estimated before correlation detection, this new detector could remove the modulated chaotic segment that would form intra-signal interference component in the correlator output from every received information-bearing signal in HE-DCSK, leading to greatly and effectively improved system bit error rate （BER） performance. The effectiveness of this proposed detector is studied analytically based on the numerical integration method and evaluated by computer simulation in additive-white-Gaussian- noise （AWGN） channel. Simulation results reveal that the proposed detector can dramatically improve the overall BER performance of HE-DCSK even at relatively low signal noise ratio （SNR） levels.展开更多
Multi-channel recording of surface electromyographyic (EMG) signals is very likely to be contaminat-ed by electrocardiographic (ECG) interference, specifically when the surface electrode is placed on mus-cles close to...Multi-channel recording of surface electromyographyic (EMG) signals is very likely to be contaminat-ed by electrocardiographic (ECG) interference, specifically when the surface electrode is placed on mus-cles close to the heart.展开更多
基金supported by the National Natural Science Foundation of China (60874091)the Specialized Research Fund for the Doctoral Program of Higher Education of China (20103223110003)+1 种基金the MOE Research in the Humanities and Social Sciences Planning Fund of China (12YJAZH120)the Innovation Project for Graduate Education of Jiangsu Province (CXLX11_0412)
文摘In this paper, a novel simple detector is designed to remove the intra-signal interference in high efficiency differential chaos shift keying （HE-DCSK） modulation scheme. With the help of data bit estimated before correlation detection, this new detector could remove the modulated chaotic segment that would form intra-signal interference component in the correlator output from every received information-bearing signal in HE-DCSK, leading to greatly and effectively improved system bit error rate （BER） performance. The effectiveness of this proposed detector is studied analytically based on the numerical integration method and evaluated by computer simulation in additive-white-Gaussian- noise （AWGN） channel. Simulation results reveal that the proposed detector can dramatically improve the overall BER performance of HE-DCSK even at relatively low signal noise ratio （SNR） levels.
文摘Multi-channel recording of surface electromyographyic (EMG) signals is very likely to be contaminat-ed by electrocardiographic (ECG) interference, specifically when the surface electrode is placed on mus-cles close to the heart.
