已调制信号计算其普相关密度，包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法，相关分析过程的matlab方法，单径或多径瑞利衰落信道仿真，构成不同频率的调制信号，FIR 底通和带通滤波器和IIR 底通和带通滤波器，可以广泛的应用于数据预测及数据分析。- Modulated signals to calculate its density Pu-related, Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, Correlation analysis process matlab method, Single path or multipath Rayleigh fading channel simulation, Constituting the modulated signals of different frequencies, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Can be widely used in data analysis and forecast data.