test

对图像加入白噪声干扰，用维特比译码进行去扰，分别用硬判决和软判决，显示出的图像可以看出不同的效果(White noise is added to the image, performed using Viterbi decoding descrambling, respectively, with the hard decision and soft decision, showing the different effects can be seen in the image)

本文利用软件相移技术得到相互正交的参考正弦波信号；通过互相关算法，完成了软正交矢量型LIA相关器的具体实现；利用该方法实现了对微弱信号幅值和相位的检测，有效地抑制干扰，减少了硬件电路成本。通过Matlab仿真，验证了该算法具有一定的优越性。(In this paper, the software technology is orthogonal to the phase shift of the reference sine wave signal through cross-correlation algorithm to complete the implementation of soft orthogonal vector LIA correlator achieved using this method for detecting a weak signal amplitude and phase, effectively suppress the interference and reduce the cost of the hardware circuit. By Matlab simulation show that the algorithm has certain advantages.)

network security algorithm ceasar cipher codes, simple implementation

使用matlab来比较4种不同的编码的性能。环境是BEC（删除信道）。 信号串的长度为2000(Use matlab to compare the performance of four different codes. Environment is the BEC (binary erasure channel). Length of the signal sequence is 2000)

做了一个基本的2x2的MIMO系统性能仿真测试，包含了mmse，vblast，ml等(I made a basic 2x2 MIMO system performance simulation tests, including mmse, vblast, ml, etc.)

GPS信号的产生过程，用matlab编写的程序，简单实用。(GPS signal generation process, using matlab program, simple and practical.)

基于kaiser窗的双谱线插值FFT谐波分析，插值与拟合的matlab实现，ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块。( Dual-line interpolation FFT harmonic analysis kaiser windows, Interpolation and fitting matlab implementation, ofdm system simulation including 16qam modulation fft windowing modules plus cp.)

用matlab编程，采用512个频率点绘制各种窗函数的幅频特性。 (Using matlab programming, 512 frequency points using a variety of window functions mapping amplitude-frequency characteristics.)

小波模极大值用于边缘提取,利用小波对奇异点处理,是很好的例子.(Wavelet Modulus Maxima used in edge extraction, the use of wavelet processing of singular points, is a good example.)

Speech oscilloscope using matlab