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本程序是功率谱密度的仿真比较,关于三个信号源的具体情况参见《现代数字信号处理导论》上册，P202，习题5。
实验方法：周期图法、自相关法和协方差法。
-this procedure is the power spectral density of the simulation, 3 signal source on the specific circumstances, see the "modern digital signal processing" Introd
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用matlab产生自相关系数固定的序列,然后再观察其功率谱密度.-using Matlab correlation coefficient derived from the fixed sequence, and then observed its power spectral density.
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随机信号分析实验之白噪声测试，白噪声信号的特性，包括均值、方差、相关函数、概率密度、频谱及功率谱密度等。- White noise of test random signal analysis experiment, white noise signal characteristic, including average value , variance, correlation function, probability density, frequency spectrum and powe
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％ 仿真主要完成OFDM系统建模,实现OFDM系统传输流程,
％ 并对OFDM信号的时域波形及功率普密度进行分析.进行循环谱相关切片的分析。- Simulation of the main complete OFDM system modeling, the realization of OFDM transmission system process, of the OFDM signal in time domain waveforms and power density analysi
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随机产生序列u(n),计算自相关系数并且计算功率谱密度-Randomly generated sequence u (n), calculated from the correlation coefficient and calculate the power spectral density
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The M-file computes the spectral correlation function or cyclic spectral density using the FFT accummulation method.
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方便准确的计算信号的互相关函数和互相关功率谱密度。-To facilitate accurate calculation of the signal cross-correlation function and cross-correlation power spectral density.
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FAM Method. This Method compute spectral correlation density function. This method is based on modifications of time smoothed cyclic cross periodogram.
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了解随机信号自身的特性，包括均值（数学期望）、方差、相关函数、频谱及功率谱密度等。-Understanding of random signal their characteristics, including mean (mathematical expectation), variance, correlation function, spectrum and power spectral density.
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Cyclic Power Spectral Density \tab\tab\tab of signals X and Y using Welch s average
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用余弦法仿真的瑞利衰落，包括自相关互相关、功率谱密度等等。依据是Chengshan Xiao2003年的文章。-Cosine method for simulation of Rayleigh fading, including the auto-correlation cross-correlation, power spectral density and so on. Based on the the Chengshan Xiao2003 article.
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根据伪随机序列理论，由混合同余法产生均匀分布的随机数，进而根据中心极限定理来产生高斯噪声。
分析所产生的均匀分布和高斯分布随机信号的均值、方差、自相关等数字特征，估计其概率密度函数并进行分析，估计其功率谱密度并进行分析。说明该高斯噪声是否符合白噪声特性。
对该高斯噪声进行FIR低通滤波，估计输出低通型限带白噪声的功率谱、相关时间等，并结合白噪声通过线性系统相关理论来进行分析。
-According to the theory of pseudo-random sequence, a
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this matlab code treats the ofdm signal in WIFI standard and calculates its SCD(spectral correlation density) ,the generation of pilots , guard time cyclic prefix -this matlab code treats the ofdm signal in WIFI standard and calculates its SCD(spectr
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相关分析过程的matlab方法，已调制信号计算其普相关密度，matlab程序运行时导入数据文件作为输入参数，用MATLAB实现的压缩传感，现代信号处理中谱估计在matlab中的使用，快速扩展随机生成树算法，使用起来非常方便。- Correlation analysis process matlab method, Modulated signals to calculate its density Pu-related, Import data files as input parameters
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车牌识别定位程序的部分功能，计算目标和海洋回波的功率谱密度,包括广义互相关函数GCC时延估计。- Part of the license plate recognition locator feature, Calculating a target and ocean echo power spectral density, Including the generalized cross-correlation function GCC time delay estimation.
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风电塔架风速时程曲线与风荷载时程曲线模拟。本代码依据IEC 61400-1标准，用于模拟具有一定功率谱密度和自相关性的风速时程曲线，并计算叶片及塔架上的风荷载。方法为基于三角级数叠加的谐波合成法（Hansen，2008）和叶素动量法。功率密度谱采用Kaimal谱函数。-Curves of wind speed and wind load-time curve Cheng wind tower. The code according to IEC 61400-1 standards, and pr
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计算目标和海洋回波的功率谱密度,最大信噪比的独立分量分析算法，用于特征降维，特征融合，相关分析等。- Calculating a target and ocean echo power spectral density, SNR largest independent component analysis algorithm, For feature reduction, feature fusion, correlation analysis.
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详细画出了时域和频域的相关图，计算目标和海洋回波的功率谱密度,一种噪声辅助数据分析方法。- Correlation diagram shown in detail the time domain and frequency domain, Calculating a target and ocean echo power spectral density, A noise auxiliary data analysis method.
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第一个程序为模拟产生一个正态随机序列X(n)，画出产生的随机序列波形、相关函数（与理论曲线对比）
和功率谱密度。第二个程序为产生一个信号X(n)，绘出信号及其幅度频谱曲线，当中心频率向左搬移f0＝200Hz时，求出其低通等效信号，并绘出其幅度频谱、信号的同相、正交分量及包络。当中心频率向左搬移f0＝100Hz时，求出其低通等效信号，并绘出其幅度频谱、信号的同相、正交分量及包络。-The first program to simulate the amount of generating a
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实现典型相关分析，计算晶粒的生长，入门级别程序,计算目标和海洋回波的功率谱密度。- Achieve canonical correlation analysis, Calculation of growth, entry-level program grains Calculating a target and ocean echo power spectral density.
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