ENERGY-DETECTION-TECHNIQUE-FOR-SPECTRUM-SENSING-I

最速下降法是一种沿着N维目标函数的负梯度方向搜索最小值的方法。该程序是用最速下降法求无约束最优化解。(Steepest descent method is an N-dimensional objective function along the negative gradient direction of the minimum search method. The program is used steepest descent method for unconstrained optimal resolve.)

"Space-Time Codes and MIMO Systems"是Mohinder Jankiraman 所著的经典之作，这里给出全书的matlabe源码。 电子版书籍另外给出。 ("Space-Time Codes and MIMO Systems" is Mohi nder Jankiraman author of classic works, here is the book matlabe source. Electronic version of books is another.)

代码用于估计关联维数。包括G-P算法(corrint.m)，高斯核关联算法(gka.m) 和Judd算法(judd.m)(Correlation dimension estimation code. Algorithms for estimating the correlation dimension using the grassberger-Proccacia approach (corrint.m), the Gaussian-Kernel algorithm (gka.m) and Judd s estimator (judd.m) are provided.)

labwindows/CVI的虚拟仪器设计(电子版) 本书详细地介绍了应用当前信号分析与处理新技术来设计不同测量功能的虚拟仪器的工作原理和方法。内容包括虚拟仪器设计的方法和步骤，I/O接口设备的软件驱动，LabWindows/CVI与MATLAB语言的接口，以及基于自相关伪随机系统辨识、神经网络、小波变换、模糊理论等技术虚拟仪器设计的方法和技巧。 本书内容新颖丰富、论述简洁，提供了大量典型的实例。本书可作为大专院校教科书，也可作为工程技术人员和科技工作者学习设计虚拟仪器的自学用书。(labwindows/CVI virtual instrument design (electronic version) the book details on the application current signal analysis and processing technology to design new measurement functions of different virtual machines, the principle and method. Including virtual instrument design methods and steps, I/O interface of the software-driven equipment, LabWindows/CVI and MATLAB language interface, Based on the correlation of pseudo-random system identification, neural network, wavelet transform, Fuzzy theory virtual instrument technology design methods and techniques. The contents are rich novel, concise exposition, a large number of typical examples. This book tertiary textbooks can also be used as engineering and technical workers should study the design of virtual instrument self-learning bo)

matlab mo ni tui huo suan fa

frft的matlab实现，可以用于数字信号处理或图像加密(these programmes are matlab realization of frft that can be used in digital signal processing or image encryption)

comprision codec FOR huffman in matlab

说明：  电力电子、电机控制系统仿真的源程序，与教材配套(Power electronics, motor control system simulation program, and the supporting materials )

Generation of code sequences and related utilities

ra_snr_gui.m 作用：统计不同信噪比下，五种信号的峰值旁瓣比RA和低高频均值比RM，绘制结果，参考图3.11和3.12 DFCW_RA_SNR.m 作用：产生正交离散频率编码信号，并计算峰值旁瓣比RA和低高频均值比RM LFM_RA_SNR.m 作用：产生线性调频信号，并计算峰值旁瓣比RA和低高频均值比RM OFDMLFM_RA_SNR.m 作用：产生正交频分线性调频信号，并计算峰值旁瓣比RA和低高频均值比RM PC_RA_SNR.m 作用：产生正交相位编码信号，并计算峰值旁瓣比RA和低高频均值比RM SIN_RA_SNR.m 作用：产生单载频信号，并计算峰值旁瓣比RA和低高频均值比RM 输入参数： vSNR：信噪比向量 输出结果： RA:峰值旁瓣比向量RA，对应信噪比向量 RM:低高频均值比向量RM，对应信噪比向量 calculateRA.m: 作用：计算不同信噪比下峰值旁瓣比RA和低高频均值比RM，参考论文3.4.5节 输入参数: sig：输入信号，可以是多行MIMO信号，运算中将合并为1行信号 vSNR：信噪比向量 输出结果： RA:峰值旁瓣比向量RA，对应信噪比向量 RM:低高频均值比向量RM，对应信噪比向量 sig_dfcw.m 作用：产生正交离散频率编码信号 sig_ofdm.m 作用：产生正交频分线性调频信号 sig_pc.m 作用：产生正交相位编码信号 (ra_snr_gui.m action: Statistics different SNR peak sidelobes than five signal RA and low high frequency average ratio RM, rendering the results, referring to Figure 3.11 and 3.12 DFCW_RA_SNR.m effect: generating orthogonal discrete frequency encoded signal, and calculate the peak sidelobe ratio RA and low and high frequency average ratio RM LFM_RA_SNR.m effect: generating chirp signal and calculates the peak sidelobe ratio RA and low high frequency average ratio RM OFDMLFM_RA_SNR.m effect: generating an orthogonal frequency division chirp signal and calculates peak sidelobe ratio RA and low and high frequency average ratio RM PC_RA_SNR.m effect: generating quadrature phase encoded signals and calculate peak sidelobe ratio RA and the average low and high frequency effects than RM SIN_RA_SNR.m: to produce a single carrier frequency signal, and calculate peak sidelobe ratio RA and RM lower than the average high-frequency input parameters: vSNR: SNR vector output: RA: peak sidelobe ratio v)