SPREAD SPECTRUM MODULATION TECHNIQUES -spread spectrum - those modulation methods that are producing a signal whose spectrum is more wider than of the data signal, the occupied frequency band being independent by the signal of data band. -The sig

进行直接序列扩频/跳频信号（DS-FH）的简单生成过程仿真-Direct sequence spread spectrum/frequency hopping signal (DS-FH) generates a simple process simulation