重要参数的提取，利用贝叶斯原理估计混合logit模型的参数，包含了阵列信号处理的常见算法，随机调制信号下的模拟ppm，仿真图是速度、距离、幅度三维图像，采用的是脉冲对消法，包含位置式PID算法、积分分离式PID。- Extract important parameters, Bayesian parameter estimation principle mixed logit model, Contains a common array signal processing algorithm, Random ppm modulated analog signal under FIG simulation speed, distance, amplitude three-dimensional image, It uses a pulse of consumer law, It contains positional PID algorithm, integral separate PID.