lab 3

cure算法的c语言完美实现，值得借鉴并运用(cure the perfect realization of the algorithm c language, it is worth learning and using)

现代信号处理这本书中的MATLAB代码。现代信号处理这本书可谓同类图书中的经典，包含了小波，自适应算法等程序。(Modern signal processing MATLAB code in this book. Modern signal processing This book can be described as similar books in the classic, including the wavelet, adaptive algorithms and other procedures.)

说明：   编写时间2009年2月24日第1次 以后以此区别修改版本!!! ---------频域传递公式推导------------ 变量说明:zn1 zn2:分别为左塔和右塔阻尼比 w1式起重机w1 w2:左塔和右塔固有频率 w01 w02 wc分别连体左支座、右支座、连体自振频率 zn01 zn02 分别为连体左支座、右支座的连接阻尼比 非对称双塔连体结构 主要考虑支座连接频率比的变化结构反应功率谱曲线( Write time, February 24, 2009 1st after a modified version of this distinction!!! --------- Frequency-domain transfer formula derivation------------ variable Description: zn1 zn2: respectively, the left and right tower tower damping ratio w1 crane w1 w2: the left and right tower tower natural frequency w01 w02 wc Siamese left bearing, respectively, the right bearing, Siamese natural frequency zn01 zn02 Siamese respectively, bearing left and right bearing link damping ratio non-symmetrical structure Siamese twin towers bearing the main consideration changes in the ratio of the structure connecting the frequency response curve of the power spectrum)

bio signal processing ECG

crc编译码的过程，程序比较简单易学，已经过验证。(CRC encoding and decoding)

Electromagnetic Simulation using the FDTD method章节后实例2-1 flux_density2_1用matlab重新编写(Electromagnetic Simulation using the FDTD method example 2-1 flux density ，rewriting in matlab)

matlab code for PSNR calculation for speech coder

Assume that a direct sequence spread spectrum system uses the Barker code of length 7 (N=7) as its spreading sequence. a. Randomly generate 8 symbols (d0~d7) from the set {+1,-1}. b. If each chip of the Barker code is denoted as cj, j=0~6, spread each symbol di by the Barker code. (Please refer to p. 17 of the slides.) Use “stem” to plot the signals before spreading and after spreading

各种信噪比估计算法，包括ls，lms，qam，噪声统计等(A variety of SNR estimation algorithms, including ls, lms, qam, noise statistics, etc.)

支持向量机的MATLAB程序 用于实现电力线路线损计算(The MATLAB program support vector machine is used to achieve power lines line loss calculation)