autocrop

creat channel, input, noise for ISI channel

The receiver performance is quantified by depicting the receiver operating char- acteristics (ROC) curves. This curves serve as a tool to and study the performance of a sensing scheme. ROC graphs are employed to show trade-of vs between detection probability and false alarm rates, (i.e. PD versus PFA), thus allowing the determination of an optimal threshold. To illustrate the performance of energy detectors, we generate complementary ROC curves (the average probability of miss detection $ P_{md} 1 - P_d$ versus the false alarm probability $P_f$ for different receiver structures and in different fading environments.Fig. 1 illustrates the complementary ROC curves for a single channel reception (no diversity) over AWGN channels. This figure depicts the complementary ROC curves for energy detectors.

This program written in matlab applied some techniques of image processing to selected image.

通过matlab编程对机械系统的可靠程度进行分析，计算出机械系统的可靠性程度。(Matlab programming by the reliability of the mechanical system analysis, to calculate the reliability of mechanical systems.)

基于小波变换的红外图像与可见光图像的融合，2级小波变换，多种融合规则(Based on wavelet transform infrared image and visible image fusion, two wavelet transform, a variety of fusion rules)

对于一维时间序列 ，可通过延迟坐标相空间重构法扩展到高维空间，以便把时间序列中蕴藏的信息充分显露出来，就是cc法(For one-dimensional time series by delay coordinate phase space reconstruction method extended to high-dimensional space, in order to fully reveal the information hidden in the time series, cc France)

matlab实现lsqr算法的源码，有强烈的参考价值，可用于地球物理反演。(matlab realize lsqr algorithm source code, there is a strong reference value, can be used for geophysical inversion.)

此文描述了TT变换压制地震面波，提高信噪比，剔除干扰信号(TT transform)

A time series Lyapunov exponent estimation for small data set

说明：  柯恩类时频分布演示例程，实现信号的二次型时频分布(Cohen Class Time-Frequency Distribution demo routines to achieve signal-quadratic time-frequency distribution)