chengxu

OVSF，正交可变扩频因子，WCDMA扩频码(OVSF, orthogonal variable spreading factor, WCDMA spreading codes)

this is matlab version for removal of the active noise for am anlog systems

gold 码发生器，经过MATLAB 仿真，对写NCO有很大的贡献(gold code generator, through MATLAB simulation, writing a great contribution to NCO)

这是个卡尔曼滤波的递推程序，是用MATLAB实现的，很有用出的，希望对大家有所帮助(This is a recursive procedure of Calman filter is implemented in MATLAB, a useful, and they hope to help everyone)

本书介绍的MATLAB在各个方面的应用，介绍的内容有简单到详细，是一本非常不错的书籍(MATLAB introduction of this book in all aspects of the application of the contents of a simple introduction to the detailed, is a very good book)

用matlab语言编写了一个GUI截面，通过该界面可以实现图像的傅立叶变换，反傅里叶变换，高低通滤波，以及把黑白图像转化成灰度图像等功能。(Matlab language with a GUI section, the interface can be achieved through the Fourier transform of the image, anti-Fourier transform, high and low pass filter, and the black and white image into gray image and other functions.)

Help psoToolbox V1.0 psoToolbox provides an interective GUI based Toolbox to solve optimization problems using particle swarm optimization. Creat a fitness function in M-file. Inputs: Function : Function handle of fitness function. Nvars : Number of variable to be optimized. LB : Lower Bound of Nvars (1 X Nvars) UB : Upper Bound of Nvars (1 X Nvars) Parameters: C1 : Cognative Attraction C2 : Social Attraction W : Inertial Population Size : Number of Swarms Max Iterations : Maximum number of epochs. Click on " RUN PSO " button to start PSO search. You will get the out put at Edit box below the axes.

this is some code for OCR for image proscesing

Matlab关于分水岭算法及改进的分水岭算法(Matlab on the watershed algorithm and improved watershed algorithm)

数字信号的传输方式分为基带传输和带通传输，在实际应用中，大多数信道具有带通特性而不能直接传输基带信号。为了使数字信号在带通信道中传输，必须使用数字基带信号对载波进行调制，以使信号与信道的特性相匹配。这种用数字基带信号控制载波，把数字基带信号变换为数字带通信号的过程称为数字调制。通常使用键控法来实现数字调制，比如对载波的振幅、频率和相位进行键控。(Transmission of digital signals into base band transmission and band-pass transmission, in practice, most of the channel with band-pass characteristics can not directly transmit base-band signal. In order to make the digital signal is transmitted with a communication channel, you must use the digital baseband signal to modulate the carrier to make the signal to match the characteristics of the channel. The digital baseband signal control with a carrier, the digital baseband signal conversion to digital bandpass signal is called digital modulation. Keying method is commonly used digital modulation, such as on the carrier' s amplitude, frequency and phase shift keying.)