Image_Contrast_Enhancements

用matlab 计算李雅谱诺夫指数功率谱哦，呵呵呵，可以下哦(lyp dajia key xiao heheh good)

完整的OFDM仿真程序，在matlab上运行。有详细的解释。(Complete OFDM simulation program, run in matlab. A detailed explanation.)

说明：  改进遗传算法，克服遗传算法的缺点，有一定的参考价值。(The disadvantage improved genetic algorithm to overcome the genetic algorithm, a certain reference value.)

Hadamard Transform for PAPR reduction in OFDM

着重介绍了OFDM 系统 中的峰值平均功率比（PAR）问题，给出了峰值平均功率比的定义以及高PAR 产 生的原因和它带来的问题，并且分析了OFDM 系统内PAR 的分布，最后对国内 外各种降低PAPR 的方法进行了简单介绍。(Focuses on the OFDM system The peak to average power ratio (PAR), and gives the definition of peak to average power ratio and high PAR production Health reasons and problems it brings, and the analysis of the distribution of the PAR of OFDM system, the last of the domestic A variety of methods to reduce PAPR outside a brief introduction.)

宽带雷达的检测模型,包括扩展目标模型、线性调频信号和脉冲压缩(Wideband radar detection model,including the distance extended target, the Linear Frequency Modulation signal and pulse compression)

从电脑中选择一个图片，本程序可对图片完成类型转换，几何运算，代数运算（平均法降噪和减数运算），傅里叶变换，图像增强（包括灰度值变换，直方图均衡化，邻域平均法和中值滤波波法），图像复原，图像分割等功能。(Choose a picture from the computer, this program can complete type conversion, geometric operation, algebraic operation (average noise reduction and reduction), Fourier transform, image enhancement (including gray value transformation, histogram equalization, neighborhood averaging and median filtering wave method), image restoration, image segmentation and other functions.)

某型飞机机翼在风洞中测得的翼型自噪声数据，可用于多输入单输出的神经网络建模。(A certain type of aircraft wings in the wind tunnel measured airfoil self-noise data, can be used for multi-input single-output neural network modeling.)

Spread spectrum merupakan sistem dimana sinyal yang dikirimkan memiliki bandwidth yang jauh lebih lebar daripada bandwidth sinyal informasinya sendiri. Proses pelebaran bandwidth sinyal informasi ini dilakukan pada sisi pengirim dan disebut spreading. Sebaliknya, proses penyempitan kembali bandwidth sinyal informasi dilakukan di sisi penerima, dan disebut despreading. Pada gambar 1 berikut menunjukkan proses yang terjadi pada sistem spread spectrum.

this code calculate the euclidian distance. h = waitbar(0, Distance Computation ) switch nargin case 1