Matlab7.0-The-first-five-Chapters

直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)

matlab与VPI联合仿真，QAM 相位纠正程序(matlab QAM)

互耦效应下的单次快拍算法,能够实现一维快速DOA估计，且不受互耦影响(single snapshot algorithm in the presence of mutual coupling)

有信道编码，调制，信道估计等，MIMO OFDM matlab仿真,实现了对10个数字音的识别程序在matlab R2009b调试通过，微分方程组数值解方法，对HARQ系统的吞吐量分析。( Channel coding, modulation, channel estimation, MIMO OFDM matlab simulation, Realization of 10 digital audio recognition program In matlab R2009b debugging through, Numerical solution of differential equations method, HARQ throughput analysis of the system.)

thes file contain simulation program code for matlab simulation program whish simulate the tcp protocol and access network

用Matlab实现一个矩阵的循环码编码的仿真。(Implement a matrix with Matlab coding loop simulation.)

包括王永良课本单辅助信源法，IEEE文献新算法(Auxiliary_source_method,RMSE_Auxiliary_source_DOA)

三电平同相层叠PWM方法谐波频谱分析及滤波器设计(Cascade three-level PWM method compared with the harmonic spectrum analysis and filter design)

MATLAB高效编程技巧与应用，25个案例分析。272页的电子书。包含重新认识向量化编程，MATLAB处理海量数据，积分案例，MATLAB优化及非线性方程求解案例，人脸图像压缩与重建，预测分类案例常微分方程组求解案例，层次分析法，定时器。(Efficient MATLAB programming skills and application of the 25 case studies. 272 e-books. Contains new understanding of vectorized programming, MATLAB processing massive data integration case, MATLAB optimization and nonlinear equation solving cases, image compression and reconstruction of the face, predictive classification case ordinary differential equations case, AHP, timer.)

处理信号的时频分析，包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法，最小均方误差（MMSE）的算法。( When processing a signal frequency analysis, Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, Minimum mean square error (MMSE) algorithm.)