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4.2
主要用途是对抗多径衰落。由于多径衰落的存在，使得同一个帧由于路径不同，到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰，影响 性能。另外，由于有了循环前缀，使得IFFT FFT操作把原来的线性卷积变成循环卷积，大大简化了相应的信号处理复杂度(The main purpose is to fight against multipath fading. Due to the presence of multipath fading, the first after they have the same frame different paths to reach the client delay. Would cause mutual interference between sub-carriers in the frequency domain, affecting performance. In addition, thanks to the cyclic prefix, so IFFT FFT operation to the linear convolution of the original into a circular convolution, greatly simplifying the corresponding signal processing complexity)
- 2012-08-24 15:18:08下载
- 积分：1
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answer2
利用burg和Levinson-Durbin算法，根据100年间每年12个月记录到的太阳黑子出现次数的平均值求太阳黑子的活动周期(Burg and the use of Levinson-Durbin algorithm, according to 100 years, 12 months a year recorded the average number of sunspots appear for the activities of sunspot cycle)
- 2008-03-30 15:16:51下载
- 积分：1
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dpcm
DPCM系统的简单sumlink仿真（7个量化等级，信源是正弦波）(DPCM system, a simple sumlink simulation (7 quantization levels, source is a sine wave))
- 2009-11-25 13:08:21下载
- 积分：1
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Basics-of-MATLAB-and-Beyond---Andrew-Knight-(
This file include matlab files to simulate example in "Basics of MATLAB and Beyond - Andrew Knight" e-book, you can use these .m file to improve your knowledge about matlab
- 2011-08-29 12:56:32下载
- 积分：1
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FDTD_2D_Yee_2D_TM_final
二维FDTD程序，在Yee元胞中，实现二维电磁波传播(2D FDTD program, Yee cell, two-dimensional electromagnetic wave propagation)
- 2012-10-29 22:48:25下载
- 积分：1
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Cours__015
convertiseur analogique numerique cours
- 2014-12-12 04:36:54下载
- 积分：1
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QPSK
QPSk的仿真程序，包括AWGN信道和瑞利信道波形以及星座图(QPSk simulation procedures, including the AWGN channel and Rayleigh channel waveforms as well as the constellation diagram)
- 2009-12-10 18:09:08下载
- 积分：1
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dip
A simple example code for matlab in dip
- 2011-04-22 11:38:18下载
- 积分：1
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read_rawsar
reading raw sar data
- 2012-04-23 20:53:45下载
- 积分：1
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认知无线电中基于遗传算法的频谱分配的时间开销仿真实验
认知无线电中基于遗传算法的频谱分配的时间开销仿真实验(Cognitive radio spectrum allocation time overhead simulation-based Genetic Algorithm)
- 2014-06-11 11:16:57下载
- 积分：1
