Optimal Periodic Pulse Jamming Signal Design for QPSK Systems  

作　　者：Jie Yang Bingyang Han Jingying Xu 

机构地区：[1]School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China

出　　处：《Journal of Beijing Institute of Technology》2017年第3期381-387,共7页北京理工大学学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(61271258)

摘　　要：The problem of optimal periodic pulse jamming design for a quadrature phase shift keying（QPSK）communication system is investigated.First a closed-form bit-error-rate（BER）of QPSK system under the jamming of pulse signal is derived.Then the asymptotic performance of the derived BER is analyzed as the signal-to-noise ratio（SNR）grows to infinity.In order to maximize the BER of the QPSK system,the optimal parameters of periodic pulse jamming signal,including the duty cycle and signal-tojamming power ratio（SJR）,are found out.Numerical results are presented to verify our analytical results and the optimality of our design.The problem of optimal periodic pulse jamming design for a quadrature phase shift keying（QPSK）communication system is investigated.First a closed-form bit-error-rate（BER）of QPSK system under the jamming of pulse signal is derived.Then the asymptotic performance of the derived BER is analyzed as the signal-to-noise ratio（SNR）grows to infinity.In order to maximize the BER of the QPSK system,the optimal parameters of periodic pulse jamming signal,including the duty cycle and signal-tojamming power ratio（SJR）,are found out.Numerical results are presented to verify our analytical results and the optimality of our design.

关 键 词：quadrature phase shift keying（QPSK） pulse jamming optimal jamming bit-error-rate（BER） signal-to-noise ratio （SNR） duty cycle signal-to-jamming ratio （S JR） 

分 类 号：TN914[电子电信—通信与信息系统]