power spectrum, just input the signal-power spectrum, just input the signal....

gps系统的仿真举例，主要是功率谱密度的仿真。结果正确。-gps system simulation for example, is the power spectral density of the main simulation. Was correct.

信号功率谱的AR模型估的MATLAB代码- PowerSpectrum Density Estimation based on AR mode. and MATLAB file

自相关函数Rxx（tao）可以了解不同时刻同一随机样本间的波形相似程度。 　　自功率谱密度函数Sxx（f）：反映相关函数在时域内表达随机信号自身与其他信号在不同时刻的内在联系。当随机信号均值为零时，自相关函数和自功率谱密度函数互为傅立叶变换对。 -Autocorrelation function Rxx (tao) can learn the same random sample at different times the degree of similarity between th