部分实现了追踪测速迭代松弛算法，非归零型差分相位调制信号建模与仿真分析 ，包括调制，解调，信噪比计算。- Partially achieved tracking speed iterative relaxation algorithm, NRZ type differential phase modulation signal modeling and simulation analysis, Includes the modulation, demodulation, signal to noise ratio calculation.