Gauss

基於matlab編寫LDPC之編碼及BF、SPA、Log-SPA等演算法及系統錯誤率計算(The preparation of LDPC codes based on matlab and BF, SPA, Log-SPA and other algorithms and system error rate)

可以对音频进行水印嵌入与提取，完整的源代码可以直接在matlab上运行(Can be carried out on the audio watermark embedding and extraction, complete source code can be run directly in matlab)

说明：  这是一个关于无际卡尔曼滤波的源程序，可以帮助初学者学习该滤波算法(This is a Kalman filter on the infinite source that can help beginners learn the filtering algorithm)

本文的秘密编码离理想的码率还很远，建立的无 条件秘密通信系统的稳定性和秘密性有待进一步证明，无条件安全系统秘密编码 方案还处于起步研究阶段，还有很多新的突破点等待研究。(Stability and secrecy of the secret coding bit rate still far from the ideal, the establishment of the unconditional secret communication system needs to be further proof, the the unconditional security system secret coding scheme is still at an early research stage, there are a lot of new breakthrough wait for research .)

MATLAB下使用viterbi算法进行卷积码的仿真范例。可以用任意配置的卷积码。testConv.m启动仿真，其中用了两种卷积码(一个1/2和一个2/3卷积码）。若要使用硬判决，需修改metric.m文件。其他就没有什么要改的了。解压即可使用。(Under viterbi algorithm using MATLAB simulation examples of convolution codes. Can be used in any configuration of the convolutional code. testConv.m start the simulation, which used two convolution code (a 1/2 and a 2/3 convolutional code). To use a hard decision, modify metric.m file. Nothing else would want to change it. Extract can be used.)

The economic load dispatch plays an important role in the operation of power system, and several models by using different techniques have been used to solve these problems. Several traditional approaches, like lambda-iteration and gradient method are utilized to find out the optimal solution of non-linear problem. More recently, the soft computing techniques have received more attention and were used in a number of successful and practical applications. The purpose of this work is to find out the advantages of application of the evolutionary computing technique and Particle Swarm Optimization (PSO) in particular to the economic load dispatch problem. Here, an attempt has been made to find out the minimum cost by using PSO using the data of three and six generating units

利用MATLAB GUI实现了类似串口小助手的功能，已经过测试，完全可以替代常用的串口助手的功能。(Using MATLAB GUI,The serial communiaction is realized,and it is tesed ok.)

从均匀PCM方法入手，产生一振幅为1和频率ω=1的正弦信号，分别用8电平和16电平进行量化，在同一坐标轴上绘出原信号和以量化信号，并比较这两种情况下的信号/量化噪声比(Starting from the uniform PCM method to produce a 1 amplitude and frequency ω = 1 of the sinusoidal signal, respectively, with 8 levels and 16 levels were quantified in the same plot of the original signal and the axes to quantify the signals, and to compare these two cases, the signal/quantization noise ratio)

超经典的ffmepg学习教程及示例代码！~~~(Ultra Classic ffmepg tutorials and sample code)

数字图像修复算法的评价标准也是从两个方面进行评价的，一个是修 复算法的效率，一个是修复后图像质量。修复算法的效率主要就是看修复 图像所用的时间，可以用时间就行量化。而图像质量很难从量上唯一的进 行评价，目前图像修复质量还没有统一的评价标准，从实际应用出发，修 复后图像质量的好坏大多数是从以下两个方面就行评价，修复后图像给人 主观上的“满意度”和客观上图像的cnr、enl、epi、psnr、snr来评判。(The evaluation criteria of digital image restoration algorithms are also evaluated from two aspects, one is repair. One of the efficiency of complex algorithm is the image quality after restoration. The efficiency of the repair algorithm depends mainly on the repair. The time spent on the image can be quantified in terms of time. But image quality is difficult to improve quantitatively only. At present, there is no uniform evaluation criterion for image restoration quality. Starting from practical application, repair The quality of restored images is mostly evaluated from the following two aspects, and the restored images are given to people. Subjective "satisfaction" and objective image cnr, enl, epi, psnr, SNR to judge.)