wavelet-energy

说明：  数字图像处理(实验二) 图像的读、写、显示和点运算 1、掌握函数imadjust与对数和对比度拉伸变换； 2、掌握直方图的绘制和直方图均衡化变换； 3、掌握空间滤波。 (Digital image processing (Experiment 2). the image to read, write, display and point operations a master function imadjust with the number and contrast stretching transformation 2, control histogram drawing and the histogram equalization transformation 3, master spatial filtering .)

Matlab编程的简单资料讲解，内容包括用Matlab绘图(Information to explain the simple Matlab programming, including graphics with Matlab)

首先是针对无或单失效数据情形下，通过多层贝叶斯估计法得到失效概率过后，给出了寿命分布参数的加权最小二乘估计。然后如果失效数据不止一个，使用乘积限估计法来得到失效概率的估计值。(Firstly, the weighted least squares estimation of the life distribution parameters is given by the multi-layer Bayesian estimation method after the failure probability is obtained for the case of no or single failure data. Then if the failure data is more than one, the product limit estimation method is used to obtain the estimated value of the failure probability.)

本例程对十字形32QAM信号进行盲均衡处理，码间干扰可以降低到-30db，输出星座图更清晰(The routines of cross blind equalization 32QAM signal processing, inter-symbol interference can be reduced to-30db, output constellation diagram more clearly)

实序列FFT快速算法，用N点FFT计算2N点实序列的FFT，比直接进行2N点FFT运算减少一半运算量。(Real sequence FFT fast algorithm, using N-point FFT calculation 2N point real sequence of FFT, than the direct 2N-point FFT computation halved.)

仿真空时分组编码的误码率曲线，通过空时分组的性能曲线，得到其分集优势(Simulation of space-time block-coded BER curves, through the space-time block of the performance curve, by its sub-set of advantages)

三电平载波同相层叠PWM方法谐波频谱分析及滤波器设计(Carrier-phase three-level PWM method cascading harmonic spectrum analysis and filter design)

it is a music player. simple music player code that accepts and plays mp3 files also, due to built in codec support

本代码是关于认知无线电系统中能量检测中的双门限检测的，代码清晰易懂，频谱感知入门时可以看看。(double threshold in energy detection)

% 单层感知器 与、或、以及其他逻辑功能的实现 % 采用step逐步逐行运行方式，了解学习过程的细节 % 尝试重新定义程序中的T，观察感知器实现异或运算(T=1 0 1 0]的可能性。(% Implementation of Single Layer Perceptron and, or, and Other Logic Functions % Use step-by-step operation to understand the details of the learning process % Trying to redefine T in the program, observing the possibility of XOR operation (T = 1010) implemented by the perceptron.)