signalsetsnr

正交频分复用的16QAM的详细发送程序，值得收藏(Orthogonal Frequency Division Multiplexing 16QAM sending )

This file contains the e-book of Radar systems analysis using matlab

As we know, the energy needed for sensors should be electrical. So the rst step before start to work is to convert environmental energy to electrical one. Inside the node there are dierent components for sensing the area, collecting data and processing the data. So the main dierent part of this kind of nodes, in compare of WSN nodes, is the power part. Once the stored energy reach to a certain amount, the power supply for micro controller and transceiver will start to work. They will continue to work until they have energy, as soon as the energy nish, they stops and energy storage device start to work to save energy again. The other fact should be consider about EH-WSN node is that the available energy can change in dierent nodes. So every node has its own harvesting rate.

This funstion represents mean,Std,energy of image,CUMULATIVE GRAY LEVEL DISTRUBITION,mode of image, entropy, HISTOGRAM MODIFI,of an image..

matlab仿真的ofdm系统程序，非常简单的系统，适合新手学习(OFDM simulation of the MATLAB system, the system is very simple, suitable for beginners to learn)

Amorphous定位算法的matlab例程，下载解压后可以直接用(Amorphous localization algorithm)

著名教授yair weiss的图像去噪程序。非常有有名。(this is from professor Yair about the image denoising algorithm he developped.)

可以识别电子文档,图片和手写的英文字母,用MatLAB打开即可(It can recognize electronic documents, pictures and handwritten English letters. It can be opened with MatLAB.)

提出了一个采用(2,1,7)卷积码+QPSK的中频调制解调方案,并在Xilinx公司的100万 门FPGA芯片上实现了该系统。该系统在信噪比SNR为6dB左右时可实现速率超过1Mbit/s、误码率 小于10-5的数据传输。 (Proposed a use of (2,1,7) convolutional code+ QPSK modulation and demodulation of the IF program, and in Xilinx' s FPGA chip one million on implementation of the system. The system SNR to 6dB signal to noise ratio at about the rate may achieve more than 1Mbit/s, less than 10-5 bit error rate of data transmission.)

Fresnel函数计算相对折射率所面临的问题是计算量较大，利用实测数据计算散射系数并作图显示结果(Fresnel function by calculating the relative refractive index is a calculation of the problems faced by large, using the measured scattering coefficient data and mapping the result will be displayed)