分析低通白噪声和带通白噪声的功率谱密度函数和自相关函数的性质，并举例同时绘制其图像。-Analysis of white noise low-pass and band-pass white noise power spectral density function and the nature of the autocorrelation function and example to draw its image at the same time.

利用MATLAB计算轴承故障仿真信号功率谱的相关程序。-Correlation program calculation and Simulation of signal power spectrum of bearing fault using MATLAB.

对数据进行功率谱分析，计算波数，对应周期，相关系数和能量，并进行检验，分析数据的显著周期。-Power spectrum analysis, calculation of wave number, the corresponding period of the data, the correlation coefficient and energy, and test cycle, significant data analysis.

功率谱显示存在于每个频率点的能量。光谱相干识别信号之间的频域相关性。相干值向0趋于表明相应的频率分量是不相关的，而值向1趋于表明相应的频率分量相关。考虑两个信号和它们各自的功率谱。-A power spectrum displays the power present in each frequency. Spectral coherence identifies frequency-domain correlation between signals. Coherence values ten

利用循环谱相关法从高白噪声中检测识别出BPSK调制的直扩信号。(Detection and identification of BPSK modulated DSSS signals from high white noise using cyclic spectral correlation method.)