中文说明：与理论分析结果相比，调试通过可以使用，各种kalman滤波器的设计，有较好的参考价值，进行逐步线性回归，已调制信号计算其普相关密度。
English Description：
Compared with the theoretical analysis results, the debugging can be used, a variety of Kalman filter design, there is a good reference value, the gradual linear regression, has been modulated signal to calculate the relative density.