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求解椭圆型，双曲型和抛物型偏微分方程的matlab代码(Solve the elliptic, hyperbolic and parabolic partial differential equations matlab code)

BP网络结构设计 实现对大气环境质量评价问题，内含PPT(BP network design and implementation issues of air quality assessment, containing PPT)

说明：  图象压缩方面的论文pdf格式 可用于毕业设计方面的工作(Image compression pdf format papers for school design work)

This M Code simulate the effects of clipping and filtering on PAPR PAPR reduction in OFDM-based wireless standard.Also the performance of BER versus SNR of original OFDM signals with PAPR reduction based on clipping and filtering schemes over AWGN channel is evaluated. The simplest and most widely used technique of PAPR reduction is to basically clip the part of signals that are outside the allowed region.Clipping methode introduces both in band distortion and out of band radiation into OFDM signals which degrades the performance including the BER and spectral efficiency.Filtering can reduce out of band radiation after clipping although it can not reduce in-band radiation distortion.However, clipping may cause some peak regrowth so that the signal after clipping and filtering will exceed the clipping level at some point.To reduce peak regrowth a repeated filtering and clipping operation can be used to obtain a desirable PAPR at a cost of computational complexity increase.

说明：  利用rt实现快速动目标检测参考程序，使用DPCA实现杂波抑制(Implementation of reference program for fast moving target detection by RT)

very good ebook for matlab beginners and developers

mat lab code for elim elim E*A = R factorization. E = elim(A) returns the elimination matrix E that gives the reduced row echelon form E*A = R. If A is square and invertible, then E = inv(A). [E, R] = elim(A) returns the elimination matrix E and the reduced row echelon form R.

使用matlab计算输入信号的卷积快速卷积，对卷积的原理进行说明(conv)

This program proveides a solution by Ghassan Hamarneh for detection curves using ACTIVE CONTOUR MODELS

说明：  OFDM系统接收部分的matlab仿真源代码(OFDM system receives some source code matlab simulation)