kaihuan

an algorithm to calculate fast fourier transform of sound signal

用c语言编写了matlab中的extrema函数~ 功能 输出一个离散信号的极大值，极小值及其他们的位置~(C language extrema in matlab function to function great value, minimum value of output a discrete signal their location ~)

考虑一个信道失真了的脉冲x(t)，在均衡器的输入端由下式表示：x(t)=1/(1+(2t/T)^2) 其中1/T为符号率。该脉冲以2/T采样率被采样，而且用一个2K+1=11的强迫归零均衡器进行均衡。写一个Matlab程序来解这些迫零均衡器的系数，求出并画出这个迫零均衡器50个采样值的输出。(Considering a channel distortion of the pulse x (T), the input end of the equalizer is represented by the X (T) =1/ (1+ (2t/T) ^2). 1/T is a symbol rate. The pulse is sampled at the 2/T sampling rate and is balanced by a 2K+1=11 forced zero equalizer. A Matlab program is written to solve the coefficients of these zero forcing equalizers and to find out and draw the output of the 50 sampling values of the zero forcing equalizer.)

说明：  用于信号检测，主要对输油管道产生的压力信号和流量信号进行辨识，进而判断管道是否发生泄露。(For signal detection, the main pressure on the pipeline flow of signals and signal recognition, and thus to determine whether pipeline leak happened.)

用MATLAB仿真现代谱估计中的周期图算法(Simulation with MATLAB in the periodogram spectral estimation algorithm)

Check this file for sensor

matlab code to demonstrate jpeg compression algorithm.

有关编写快速的MATLAB代码的书，老外写的，通俗易懂，含大量实例(Writing Fast MATLAB Code)

Detect the type and convert the image to one out of four types: BW, LABELED, CONTOUR,LIKELIHOOD. This program can be used as a part of automatic image recognition tool.

three phase system with sinosoidal inverter .check it with source code