yuanzhu1

说明：  文件中的是图像配准过程中常用的几种提取特征点的方法(Several common methods of extracting keypoits in the process of image registration)

说明：  最近看到有人提问怎样用FFT实现频谱分析，我认为能够进行到频谱分析的人，对于系统研究的深度基本上已经相当不错了。本人今天做了一个例程，发给大家参考一下。 历程主要内容(signal_analyzer.rar)如下： test1.txt 第一列为时间t，0.001s为步长；第二列为系统的输入信号；第三列为系统的输出信号。 signal_analyzer.m首先将test1.txt 的数据读入workspace，然后进行FFT，分析出两信号的频率，输出对于输入的幅值衰减（db），输出对输入的相位差。(The question was asked recently to see the realization of how to use FFT spectral analysis, I think that spectral analysis can be carried out to those who study the depth of the system basically is already quite good. Today I made a routine, distributed to Members for reference. The main contents of the course (signal_analyzer.rar) are as follows: test1.txt the first time as t, 0.001s for the step the second as the system input signal the third as a system output signal. signal_analyzer.m first test1.txt data read into workspace, and then proceed to FFT, analysis of the two signal frequency, output amplitude for input attenuation (db), the output of the input phase difference.)

matlab教学从入门到精通 是初学者必备(matlab teaching beginners from entry to the master is essential)

关于积分分离PID的程序，可以供大家学习参考。(About integral separation PID program, everyone can learn reference.)

optimization algorithms source code

波形的峰值检测程序，能检测波形各个点的峰值(Waveform peak detection program, can detect the peak point of the waveform )

Project Robot Matlab

CDMA系统的功率控制程序，matlab写的，非常好用。(CDMA system, power control procedures, matlab written, very easy to use.)

MATLAB程序最短路优化算法教程Shortest path algorithm MATLAB program tutorial(Shortest path algorithm MATLAB program tutorial Shortest path algorithm MATLAB program tutorial)

Inter-symbol interference if not taken care off may cause severe error at the receiver and the detection of signal becomes difficult. An adaptive equalizer employing Recursive Least Squares algorithm can be a good compensation for the ISI problem. In this paper performance of communication link in presence of Least Mean Square and Recursive Least Squares equalizer algorithm is analyzed. A Model of communication system having Quadrature amplitude modulation and Rician fading channel is implemented using MATLAB communication block set. Bit error rate and number of errors is evaluated for RLS and LMS equalizer algorithm, due to change in Signal to Noise Ratio (SNR) and fading component gain in Rician fading Channel.