triangle_3

SFM信号的产生及其基本设置,对信号估计等(SFM signals generated and the basic settings, such as the signal estimate)

It explain about 3-phase active filter

本算法是用于求解四阶累积量的，主要应用在DOA估计。(This algorithm is used to DOA estimation，and it can solve 4th-roder-cumulant )

振动分析matlab程序，用于固有频率振型求取。(vibration analysis matalb code)

在计算雷达损失时，只有当目标位于天线的垂直轴线时才能得到最大天线增益，本程序给出天线辐射方向图，在不同辐射角度下天线增益情况。(In the calculation of the radar losses when, and only when the destination is located in a vertical axis of the antenna to obtain the maximum antenna gain, the procedures given in the antenna radiation pattern, the antenna gain in the different radiation angles.)

matlab 工程分析教程，适用于利用matlab进行电信、网络等方向工程分析人员。(A teaching material of engeneer analysis in matlab.)

说明：  ：Mean—shift算法是一种非参数密度估计算法，可以实现快速的最优匹配，在目标的实时跟踪领域起着非常 重要的作用。为了有效的将Mean—shift算法应用到灰度图像中，采用了以方向直方图建立目标模型的策略，提出了在灰 度图像中以Mean—shift为核心的目标跟踪算法。实验结果表明，该算法具有不受光照条件影响的优点，在低对比度的情 况下仍能实现稳定、实时的跟踪目标。(: Mean-shift algorithm is a nonparametric density estimation algorithm, the optimal matching can be fast, real-time tracking fields in the target plays an important role. In order to effectively Mean-shift algorithm will be applied to the gray image, the histogram used to establish the direction of the strategy target model is proposed in the gray image to Mean-shift tracking algorithm as the core. Experimental results show that the algorithm has the advantage of not lighting conditions, in the case of low contrast can still achieve stability, real-time tracking of targets.)

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.

3 files: imageslicer for splitting RGB image to 8 bit plans, getTopology to extract topology features features, and getShape to extract shape features . (good features for CBIR systems)

现代通信系统第二版 的整个书得源代码，很全的代码，希望对同学有帮助(The second edition of modern communication systems have the source code throughout the book)