Image-gradation-processing

说明：  移相干涉求相位，既求出基于相位偏移干涉术的初始相位值(Phase-shifting interference requirements phase, not only find the phase shift interferometry based on the initial phase value)

说明：  Singular Spectrum Decomposition，即奇异谱分析，广泛应用于信号识别与预测。(Singular Spectrum Decomposition)

通过MATLAB的SIMULINK模型设计，实现伪随机数的序列发生器，并通过DSP BUILDER中的SIGNAL COMPILER转换成QuartusII工程，并实现硬件的下载。(Through the MATLAB SIMULINK model design, realization of pseudo random sequence generator, and through the DSP BUILDER of SIGNAL COMPILER converted into QuartusII engineering, and realize the hardware of the download. )

不同方法估计协方差矩阵的Capon波束形成,以及多点约束的Capon波束形成和方向图，自己运行效果很好。(Different methods of estimation covariance matrix Capon beamforming, and multi-point constraints Capon beamforming and direction maps, run their own good results.)

channel estimation using OMP code matlab

噪声中正弦信号的现代法频谱分析，分析了自相关法、Burg法、协方差法和改进的协方差法对功率谱的影响以及阶数、信噪比、窗长度对自相关法频谱分析的影响。(The influence of autocorrelation method, Burg method, covariance method and improved covariance method on power spectrum and the influence of order, signal-to-noise ratio and window length on the spectrum analysis of sinusoidal signal in noise are analyzed.)

This program uate BER performance of OFDM systems in AWGN environment. Basically, modulation and demodulation function is supported BPSK to 64QAM.

分别用解析法和数值法求出并画出信号的幅度谱，并比较它们的结果。(Fourier Transform.)

编写matlab语言实现的bch编码程序(Write the BCH encoding program implemented in MATLAB language)

说明：  QPSK（四进制相移键控）信号调制解调过程（经高斯信道）的仿真(QPSK (quaternary phase shift keying) signal modulation and demodulation process (by the Gaussian channel) of the simulation)