pack_emd

对低压线路的ofdm的编码与仿真程序，包括信道，编码，自适应均衡等方面(Ofdm low-voltage line coding and simulation program, including channel, coding, adaptive equalization, etc.)

说明：  本程序用于完成BPSK、QPSK、pi/4QPSK、OQPSK、8PSK、16QAM、32QAM、64QAM和128QAM的调制仿真。并可任意扩展到MPSK和MQAM。程序分成四个部分，fir.m对基带码元序列进行脉冲成型，可选矩形脉冲，升余弦脉冲和平方根升余弦脉冲； modal.m 为主程序，完成岁各种信号的基带星座图映射、脉冲成型和调制；pi4QPSK.m 为pi/4QPSK信号的星座图映射程序；test1.m给出一个简单的频谱显示测试。(This procedure for the completion of BPSK, QPSK, pi/4QPSK, OQPSK, 8PSK, 16QAM, 32QAM, 64QAM and the modulation 128QAM simulation. Arbitrary and may be extended to MPSK and MQAM. Procedures are divided into four parts, fir.m of baseband symbol pulse sequences forming, optional rectangular pulse, raised cosine square root raised cosine pulse and pulse modal.m-based procedures, the completion of the age range of the base-band signal constellation diagram mapping, pulse shaping and modulation pi4QPSK.m for pi/4QPSK signal constellation diagram mapping procedures test1.m given spectrum shows a simple test.)

对原始灰度图像进行图像压缩，对此图进行 8×8 DCT 变换后，分别只保留 DC系数，以及保留前 4、8、16 个变换系数(DC＋AC) ，然后再分别进行 IDCT 变换 (The original gray image compression, this map for 8 × 8 DCT transform, respectively, to retain only the DC coefficient, and to retain the former 4,8,16 months transform coefficients (DC+ AC), and then separately IDCT transform)

This file is about OFDM Channel Estimation Based on Comb Pilot.

使用遗传算法的Matlab思想解决TSP问题，(Genetic)

文件夹里是最速下降法和牛顿法，这两种方法在最优化中得到了广泛的应用，希望对学习最优化的同学有帮助。(Folder is the steepest descent method and Newton method, these two methods in the optimization has been widely used, I hope to learn to optimize students help.)

基于AWGN信道的OFDM仿真程序，欢迎下载参考相互学习！(Based on the AWGN channel OFDM simulation program are welcome to download a reference to learn from each other!)

麦克风阵列信号的music的声源估计，可实现对入射信号的角度估计。(music DOA)

在运动目标检测中有很多关于目标分割的方法，这里举了一个基于熵的阈值分割方法。(Moving target detection on the target partition, example of an entropy-based threshold segmentation method.)

自编的三次B样条插值的matlab仿真源代码，希望能与大家多交流学习(a cubic B-spline interpolation matlab simulation source code, hope you guy like it)