HW1_3

MATLAB中GUI的设计实例，其中包括语音信号的录制、采样、滤波、重构、以及计算语音信号的频谱特性。(MATLAB GUI design example, including voice signal sampling, filtering, recording, and calculate the reconstruction, the speech signal spectrum characteristics.)

柱坐标作三维图详解，包括坐标转换等的三维作图内容，读者自行更改(Cylindrical coordinates for three-dimensional map Xiangjie)

matlab查询excel,matlab查询excel，matlab查询excel，matlab查询excel(matlab access to excel)

in this file wrote digital modulation function for about all digital modulation

This a ddk filter sample for keyboard

Sift by David Low from UBC about computer vision features

旅行商问题（Travelling Salesman Problem, 简记TSP):假设有一个旅行商人要拜访n个城市，他必须选择所要走的路径，路经的限制是每个城市只能拜访一次，而且最后要回到原来出发的城市。路径的选择目标是要求得的路径路程为所有路径之中的最小值。 此处使用蚁群算法求解TSP问题(Suppose a business trip to visit n cities, he must choose the path to go, pass through the restriction is to visit each city only once, and finally go back to the original departure city. Path selection objective is to get the path distance to the minimum value among all paths.Here,we use the procedure of ant colony algorithm to work out the TSP.)

说明：  功能：基于褶积模型的衰减补偿 功能：基于褶积模型的衰减补偿(Attenuation compensation based on convolution model)

包含了CMMB系统发端从星座映射开始直到完成OFDM调制的过程。(Contains the system originating from the constellation mapping CMMB start until the completion of OFDM modulation process.)

ldpc decoding and encoding