axdrag

matlab-simulink 光伏发电模型(matlab-simulink photovoltaic model)

说明：  信道仿真对高斯信道、多径衰落信道的基本仿真方法，通过线性调频 信号实现信道冲激响应的测量估计。(Channel simulation for Gaussian channel, multipath fading channel basic simulation method, through the linear frequency modulation The signal realizes the measurement and estimation of channel impulse response.)

This is a introduction of the convergence analysis of the particle filter.

generation of wideband and high dynamic range analog signal for area-efficient MADBIST, especially for the on-chip testing of wireless communication IF digitizing sigma–delta modulator chip. Via increasing the order of the one-bit bandpass sigma–delta modulation algorithm up to 12 and using finite repetitious bitstream approximating scheme, it can achieve great improvements in signal bandwidth instead of purity at the cost of very little hardware overhead. Another contribution in this work is to provide the theoretical analysis of the reconstructed signal degradation due to harmonic distortion and clock jitter. Such on-chip analog stimulus generation scheme is especially fit for IF digitizing bandpass sigma–delta modulator chip s production-time testing and in-the-field diagnostics. The technique can also be extended to mixed-signal communication SoC built-in-self-test.

This package contains a beta MATLAB version of the VSNR function from the paper "VSNR: A Wavelet-Based Visual Signal-to-Noise Ratio for Natural Images," D. M. Chandler and S. S. Hemami, published in the IEEE Transactions on Image Processing, September 2007.

再matlab上实现基于扩频的数字水印。图像处理(This is a simple spread-spectrum based informed watermarking implementation in MATLAB. )

聚类算法：k—medoids 方法。这儿选取一个对象叫做mediod来代替上面的中心 的作用，这样的一个medoid就标识了这个类。步骤： 1，任意选取K个对象作为medoids（O1,O2,…Oi…Ok）。 以下是循环的： 2，将余下的对象分到各个类中去（根据与medoid最相近的原则）； 3，对于每个类（Oi）中，顺序选取一个Or，计算用Or代替Oi后的消耗—E（Or）。选择E最小的那个Or来代替Oi。这样K个medoids就改变了，下面就再转到2。 4，这样循环直到K个medoids固定下来。 这种算法对于脏数据和异常数据不敏感，但计算量显然要比K均值要大，一般只适合小数据量。 这里是MAtlab源代码。(err)

Emailing through matlab

CDMA移动通信系统中一种速率功率联合控制方法(CDMA mobile communication system in a joint rate-power control method)

有限反馈的仿真程序，当选择不同的发送用户数时候的系统吞吐量。(Limited feedback simulation program, when choose a different number of users when sending the system throughput.)