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混沌信号由于其特有的性质 ,在雷达中具有广阔的应有前景。该文利用基于Wien电桥和负阻转换器电路 ,产生的双卷吸引子混沌信号 ,获得了相应的混沌二相码序列雷达波形。借助于集成电路模拟程序 (SPICE)模拟结果 ,讨论了该二相序列的二值均衡性和游程分布与电路参数的关系。最后 ,通过计算机模拟 ,分析了雷达波形的模糊函数 ,结果表明它具有“图钉型”特征 ,可以获得良好的距离和速度分辨力 ,以及良好的电子抗反干扰 (ECCM)性能
Because of its peculiar properties, chaos signal has broad prospects in radar. In this paper, a double-coil attractor chaotic signal generated based on the Wien bridge and negative resistance converter circuit is used to obtain the corresponding radar waveform of the chaotic two-phase code sequence. With the help of the simulation result of integrated circuit simulation program (SPICE), the binary equalization of the two-phase sequence and the relationship between run-length distribution and circuit parameters are discussed. Finally, the fuzzy function of the radar waveform is analyzed by computer simulation. The result shows that it has the characteristics of “thumbtack”, good distance and speed resolution, and good electronic anti-interference (ECCM) performance