OFDMSimulinkyuxin

In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal frequency-division multiplexing (OFDM) block having a tile structure in the frequency domain is proposed to perform synchronization. Timing offsets are estimated using correlation-type algorithms. By inserting some null subcarriers in the proposed tile structure, we propose a computationally efficient subspace decomposition- based algorithm for CFO estimation. The issue of optimal tile length is studied both theoretically and through simulations. By judiciously designing the tile size of the pilot, the proposed algorithms are shown to have better performance, in terms of synchronization errors and bit error rate, than the time-division multiplexing-based training method and the computationally demanding space-alternating generalized expectation-maximization

Create an impulse excitation

一本matlab入门参考书，附上了每一章的学习源码(an introduction to matlab attached with demos every chapter)

认知无线电系统中存在载波频偏的OFDM频谱感知技术1001-0548(2013)03-0355-05 (OFDM Signal Sensing Scheme for Cognitive Radio in the Presence of Carrier Frequency Offset.)

一个串级PIDSIMULINK模型,可直接运行(one simulink model about pid)

《matlab有限元分析与应用》对应的源代码(" Matlab finite element analysis and application," corresponding to the source code)

数字图像频域滤波处理，分别进行二阶巴特沃斯(Butterworth)高通、低通滤波器。(Digital image processing frequency domain filtering, respectively second-order Butterworth (Butterworth) high pass, low pass filter.)

电动汽车充电功率需求的统计学建模方法，可以看看喔(Electric vehicle charging power requirements of the statistical modeling methods, you can see Oh)

直流斩波电路的mtalab仿真实例，可以观察波形，便于延伸各种仿真，继续仿真(DC chopper circuit mtalab simulation example, the waveform can be observed, to facilitate extension of the simulation, the simulation continues)

本论文的工作是对近场圆形阵列宽带信号进行处理，获得目标/焦点位置增益输出， 预先定义宽带信号阻带的旁瓣衰减大小以及感兴趣频域内的恒定波束宽带模式。本文使 用不同的方法解决这个设计问题，该问题分为两部分，第一部分解决频域内的模型设计， 第二部分给出时域内的结果。仿真结果表明解决方法的有效性。 (This thesis work is a circular array of broadband near-field signal is processed to obtain the target/focus position gain output, Pre-defined stopband sidelobe wideband signal attenuation constant beam size and frequency domain of interest wideband mode. This paper makes To solve this problem in different ways design, the problem is divided into two parts, the first part of the solution in the frequency domain model design, The second part gives the result in the time domain. The simulation results show the effectiveness of the solution.)