摘要
分析复合离散混沌系统．针对该混沌系统研究了一种伪随机序列的生成方法。利用上述方法生成复合离散混沌序列，对正弦波进行调制，得到复合离散混沌二相编码信号，对该信号的自相关性、频谱、模糊函数和抗干扰等性能进行了分析，并给出了相应的仿真结果。仿真结果表明．该信号具有优良的具有距离和速度分辨率较强的抗干扰能力。
Analyses composite discrete chaotic system, resrarches on a generated method of pseudorandom sequence based on this chaotic system. Composite discrete chaotic sequence is generated using this method, the sine wave is modulated by this chaotic sequence and the Composite discrete chaotic hi-phase encoding signal is attained. Based on the foundation of simulations, researches on the performances of auto-correlation, spectra and ambiguity function of this signal. The simulation results show that the resolutions of this signal in both range and velocity domine are good, the anti-interference performance of this signal is fine.
出处
《现代计算机》
2009年第6期4-6,38,共4页
Modern Computer
基金
国家自然科学基金项目（No.70471031）
关键词
复核离散混沌系统
伪随机序列
二相编码信号
模糊函教
Composite Discrete Chaotic System
Pseudorandom Sequence
Bi-Phase Encoding Signal
Ambiguity Function
