摘要
从模糊函数的角度出发,研究混沌直扩信号的测距测速性能。推导混沌直扩信号的模糊函数,仿真分析以Logistic混沌映射为扩频码的直扩信号的测距测速性能,并给出其映射参数选择范围,对混沌扩频测控体制中混沌序列的优选有一定的借鉴意义。
The range and velocity measurement performance of the chaotic direct sequence spread spectrum signal is discussed based on the ambiguity function.In this paper the ambiguity function expression of chaotic direct sequence spread spectrum signal is derived.The measurement performance of the Logistic-map based chaotic direct sequence spread spectrum signal is simulated and analyzed.And the adjustable range of the mapping parameter is given which offers the guidance to the chaos sequence selection in the chaotic spread spectrum TT&C system.
出处
《遥测遥控》
2010年第3期21-26,38,共7页
Journal of Telemetry,Tracking and Command
关键词
混沌直扩信号
模糊函数
LOGISTIC映射
测距/测速性能
Chaotic direct sequence spread spectrum signal
Ambiguity function
Logistic map
Range/velocity measurement performance
