多比特相位量化仿真技术及应用研究

A multi-bit phase quantization simulation technology and applications

为了在基于信号的系统仿真中构建与原始信号有一定关联性的新信号,需要充分利用脉冲信号的脉内信息进行各种调制处理,提出了一种多比特相位量化仿真模型。通过对两种原始信号与利用相位信息进行重构得到的信号进行波形或频谱的比较,验证了这种多比特相位量化仿真模型的正确性。仿真试验证明,采用多比特相位量化和信号重构能方便地实现移频调制和各种带宽的噪声调制。

For the purpose of constructing new signals associated to initial signals in system simulation based on signal, modulation processes exploying intra-pulse information of pulse signals are necessary, A simulation model of multi-bit phase quantization is proposed. The simulation model is validated through waveform or frequency spectrum comparisons of two original pulse signals and restructured signals utilizing phase informa tion. Further more, it is proved by simulation experiments that frequency shift and noise modulation with some band widths could he conveniently achieved making use of multi-bit phase quantization and signal reconstruction.