wavelet

基于MATLAB的QPSK通信系统仿真源码，信道误码率等(MATLAB-based simulation of communication systems QPSK source, channel bit error rate)

数学建模中的常用算法对应的matlab程序(some program)

Performance analysis of Binary phase shift keying modulation in AWGN channel-Uncoded Bpsk vs Coded BPSK Probability of Error (BER) vs SNR (Eb_No) curve

利用Matlab内建的快速傅氏变换函数可以方便地在波数域计算重磁异常导数。介绍了基于Matlab语言的波数域求导的算法，给出了程序源代码，讨论了一些有助于提高计算精度的编程技巧。通过模型试验和数据分析， 发现在计算垂向导数时波数域求导算法的精度比傅氏级数的精度有明显改善；而水平导数的计算，2种方法的精度相当。在某区钾盐勘探中，用该方法处理高精度重力剖面数据，取得了较好效果。(It is convenient to calculate derivative in wave number space using the inbuih F胛function in Matlab．This paper describes a matlab algorithm for derivative calculation of 1 D gravity and magnetic anomaly in wave number space，gives code of program and deals with some programming skills for precision improvement．Throngh model test and data analysis，it is found that the precision of the F盯method is much higher than that of the Fourier Series method in vertical derivative calculation．In horizontal derivative calculation， however，the precisions of the two methods ale almost the same．During kainite exploration in a certain basin，satisfactory result Wag obtained in the processing of gravity profile data using this method．)

OFDM信号具有高峰均功率比的特点，研究交织技术在抑制OFDM信号峰值平均功率比（PAPR）中的应用。论文首先阐述了OFDM的基本原理和关键技术，简单介绍了目前降低PAPR的几种方法，在对交织法降低OFDM系统的PAPR进行理论分析的基础上，提出了一套合理的交织方案――利用分组交织器和伪随机交织器降低PAPR，最后通过MATLAB仿真得出结论。(OFDM signal has a peak to average power ratio characteristic of interwoven OFDM technology in the inhibitory signal peak-average power ratio (PAPR) of the application. Thesis first expounded the basic principles of OFDM and key technologies, the simple introduction of the current of several methods to reduce PAPR, intertwined in the law to reduce PAPR of OFDM system, the theoretical analysis, based on a set of reasonable intertwined programs- use Packet interleaver and the pseudo-random interleaver to reduce PAPR, the final conclusion through MATLAB simulation.)

DSP course Tut1-_Intro

说明：  这是一个交叉验证函数, 用来选取训练集, 和测试集. 请放在matlab的工具箱中使用(this is a crossvalind. please use it in the matlab tools.)

说明：  拉丁超立方体模拟程序，用于易于拉丁超立方体的蒙特拉罗模拟(latin MC)

Calculate point to line distance in 2D

使用matlab gui将AVI格式的视频分帧播放，可暂停，且可以反复播放上一帧和下一帧(Using matlab gui to AVI format video sub-frame playback, you can pause, and can repeat the previous frame and the next frame)