channel

介绍了数字通信中的QPSK调制解调的原理，通过用Matlab编写脚本程序对QPSK通信系统的发射和接收过程的具体实现进行模拟仿真，绘出信号在理想信道和加噪信道中模拟传输时的时域图，并对各模块进行了频谱分析，所得到的结果与理论基本相符，对于理解QPSK系统的性能并在系统的实际应用上作进一步的设计，提供了有效的参考依据(The introduction was done with the principle of the QPSK modulation and demodulation in digital communications, a script was written by using Matlab program to carry out a simulation of the QPSK communication system ,which contains the concrete realization of transmit and receive process. The time-domain diagram is drew separately when the signal transmits in the ideal channel and in the channel with noise, spectral analysis of each module is also done, the results obtained with theoretical results in the main, which provides an effective frame of reference for understanding the performance of QPSK systems, and the practical application in the system to make further designed.)

细胞颜色分析，matlab实现，效果不错(Color analysis of cells, matlab achieved good results)

自动画圆小程序 ：只要有了坐标，就可以方便的大量快速画圆(Automatic Circle applet: As long as with the coordinates, you can quickly draw a circle to facilitate a large number of)

神经网络理论与matlab7实现 源代码(Neural Network Theory and realization of the source code matlab7)

这个程序实现了Levenberg Marquardt Fletcher(LMF)算法，并用于非线性最小二乘的计算。用于在一个非线性多项式组成的矛盾/超定方程组中，找到最优的解。(This program implements the Levenberg Marquardt Fletcher (LMF) algorithm, and used nonlinear least squares calculations. Formed in a non-linear polynomial for the conflict/overdetermined equations, find the optimal solution.)

this is IMM tech. in tracking targets

指纹识别的matlab程序，实现指纹图片的二值化、细化、计算图形中心、存入数据库、指纹匹配等功能， (Fingerprint Recognition matlab procedures realize fingerprint image binarization, thinning, computing graphics center, database, fingerprint matching and other functions,)

说明：  《MATLAB程序设计教程》电子教案有PPT和源代码。均为M文件(&quot MATLAB Programming Guide&quot e-lesson plans-2660. PPT and the source code there. Are M documents)

步长随输入信号的改变而改变的FIR自适应滤波器。(Step with the input signal is changed the FIR adaptive filter.)

高压输电并网系统，包括逆变器控制系统，电流有功功率双环控制。(High-voltage transmission grid system, including inverter control system, the current active bicyclic control.)