chap9

inverse perspective mapping

ITs a DMT code using for high speed transmission through Multi mode fiber.

Mapping and Demapping technique for Alamouti coding in Matlab command line.

matlab的教程，例题，包括数值，符号，图像等运算及答案(matlab tutorials, sample questions, including the values, symbols, images and other computing and answers)

说明：  将图片从RGB空间转换到Lab空间的Matlab文件(The image from the RGB space is transformed into Lab space Matlab files)

通过固定波束形成算法进行语音增强的一个仿真程序，这个算法是麦克风阵列语音增强里最基本的，值得研究。(Formed by a fixed beam speech enhancement algorithm, a simulation program, this algorithm is the microphone array speech enhancement in the most basic, is worth studying.)

绘制分钟级自动站气象战数据与能见度数据的对比图(Draw-the-minute weather warfare automatic station data comparison chart data and visibility)

（1） 数据源：随机产生752*8bit作为数据源 （2） 按照DTMB的能量扩散初始相位和生成多项式来产生伪随机数据并对原始数据源进行加扰 （3） 加扰后的数据直接进行解扰，观察误码率的值，验证加扰算法 （4） 按照DTMB标准构造BCH（1023，1013）来实现BCH（762，752）信道编码器和解码器，并观察其误码率是否为0来验证其正确性。 （5） 最后把能量扩散和BCH编码级联，接收端把BCH解码和解扰级联，观察其误码率，验证正确性。 ((1) Source: randomly generated 752* 8bit as data source (2) in accordance with the energy of the initial phase and the diffusion DTMB generator polynomial to generate a pseudo-random data and the original data source scramble (3) the scrambled data is directly descramble, the bit error rate of the observed values, verification scrambling algorithm (4) In accordance with DTMB standard configuration BCH (1023,1013) to achieve the BCH (762,752) channel encoder and decoder and observe its error rate is 0 to verify its correctness. (5) Finally, the energy dispersal and BCH coding cascade, the receiving end of the BCH decoding and descrambling cascade observed error rate, to verify the correctness.)

瑞丽衰落信道的仿真，包括延迟、多径条件等，仿真可直接调用函数(Ruili fading channel simulation, including delays, multi-path condition, the simulation can directly call functions)

this source code based on steganography and developed in matlab. in steganography we can hide any data like images in another image. this method based on block processing method.