gradproj

功率谱估计的应用范围很广，在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法；经典谱估计是基于傅立叶变换的，虽然具有运算效率高的优点，但是频谱分辨率低同时旁瓣泄漏严重，对长序列有着良好的估计。为了克服经典谱估计的缺点，人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的，有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高，同经典谱估计互为补充。在认真学习了现 代谱估计方法后，我选择了现代谱估计中的AR模型法的仿真作为题目。下面给出AR模型的相关理论和仿真实现。(Power Spectral Estimation of very extensive, in all disciplines and fields of application of a great deal of attention. The "modern signal processing" on the curriculum of classical and modern spectral estimation spectrum is estimated that the two types of spectrum estimation method; Classical spectrum estimation is based on Fourier transform, although high computing efficiency advantages, but also low-resolution spectrum Sidelobe serious leakage of long sequences have good estimates. In order to overcome the classic shortcomings of the spectrum estimation, there have been a pair of modern spectral estimation methods. Modern spectral estimation is the random process model parameters based on the maximum likelihood estimation, maximum entropy method, AR model, forecast filter. Spe)

Conjugate gradient method

平滑处理是信号分析的预处理方法之一，本程序采用5点滑动平均法对信号进行平滑处理(Smooth processing is one of the pretreatment method of signal analysis, this program uses the 5 moving average method to smooth signal.)

压缩编码与解码程序，可以压缩字符型文件，且含有一个测试文件(Compression coding and decoding process)

Error related performance metrics

角度和时延联合估计（JADE）算法MATLAB程序(Angle and time delay estimation (JADE) algorithm combined MATLAB )

在matlab环境下实现一阶小波变换(Matlab environment in order to achieve a wavelet transform)

说明：  Matlab中文参考手册，可以作为函数的说明(Matlab Manual in Chinese)

世界著名学者PROAKIS<数字通信>第四版上的几个配套matlab例程(world-renowned scholars PROAKIS)

这个小程序可以实现窗口的创建以及同步接收和发送消息的功能。(WHEN YOU SEND MESSAGE TO OTHERS ,THEY WILL CAN RECEIVE IT TIGHT NOW.)