matlab_learning_2nd_ed

This zip file describes about Basic radix 2fft,radix 4fft and shows the basic difference between above mentioned fft with radix 16 fft

code of an egress router for a mail management system

建立一个MIMO系统，通过这个系统可以很好的了解到整个MIMO系统组成和结构(The establishment of a MIMO system, the adoption of the system can be very good that the whole composition and structure of MIMO systems)

陀螺仪数据采集程序 采用转换串口采集数据后直接传到MATLAB中，适用于单轴陀螺仪数据快速采集与标定(the programme to get the datas from gyros)

1.录制一段自己的语音信号,对录制的信号进行采样 画出采样后语音信号的时域波形和频谱图 给定滤波器的性能指标,采matlab设计数字滤波器,并画出滤波器的频率响应 然后用自己设计的滤波器对采集的信号进行滤波,画出滤波后信号的时域波形和频谱,并对滤波前后的信号进行对比,分析信号的变化 回放语音信号。2.(1. Recorded his voice for some signal, the signal is sampled on the record draw sampled speech signal time-domain waveform and frequency spectrum performance for a given filter, mining matlab digital filter design, and draw the filter frequency response then use their own filters designed to filter the collected signals, to draw the filtered time domain waveform and frequency spectrum, and comparing the signal before and after filtering, analysis of signal changes playback of audio signals. 2.)

用来生成LDPC的H矩阵，并采用BP译码，很不错的程序(Used to generate the LDPC H-matrix, and the use of BP decoding, very good program)

主要介绍了分布估计算法方面关于熵的介绍，实现最大熵分布估计算法(Mainly introduces the estimation of distribution algorithm on entropy is introduced, the realization of maximum entropy estimation of distribution algorithm )

C4.5的matlab实现，并且进行了详细的注释，并进行了有序化处理(C4.5 matlab realize, and conducted a detailed notes, and conducted an orderly processing)

在Matlab环境中，对基于HDR图像进行色度映射处理的两种方法。函数原型只有一个，重载函数很多，适合各种参数情况下的色度映射。(failed to translate)

通过读取GPS RINEX格式观测和星历文件，实现了GPS伪距单点定位，经过数据验证，该算法定位结果有效。(By reading the GPS RINEX format observation and ephemeris file, the GPS pseudorange single point positioning is realized, and the positioning result is valid through data verification.)