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4.3
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 15:17:41下载
- 积分:1
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pso
pso算法描述,使用pso优化BP神经网络算法,该代码为基于PSO和BP网络的预测(The PSO algorithm is described, and the BP neural network algorithm is optimized by pso. The code is based on the prediction of PSO and BP network.)
- 2019-04-16 16:04:05下载
- 积分:1
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bianyuanjiance
很好的应用于彩色图像边缘检测 (Well applied to the color image edge detection)
- 2012-06-09 14:21:39下载
- 积分:1
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ASK DEMOD
说明: ASK解调 可实现2ASK 4ASK信号解调 仿真通道(Ask demodulation can realize the simulation channel of 2ASK 4ask signal demodulation)
- 2020-03-15 10:44:05下载
- 积分:1
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GaussPulse
产生一定载波频率、重复频率及脉冲间隔的高斯形脉冲信号(Produce gaussian signal with certain repetition frequency, the carrier frequency and pulse interval)
- 2014-02-19 10:31:39下载
- 积分:1
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SC09006013
实现了小波的图像量化,包括均匀量化,WSQ标准量化,k均值矢量量化,附简明pdf报告。(Implementation of wavelet image quantification, including the uniform quantization, WSQ standards for quantification, k means vector quantization, with a concise pdf report.)
- 2009-11-08 10:05:34下载
- 积分:1
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MATLAB_mover
说明: 提供了在Matlab中如何进行流场的动态模拟.通过这个是提供给想用Matlab作动态模拟的人一个思路(Matlab provides the flow field in how to carry out the dynamic simulation. Through this is to provide to want to use Matlab for dynamic simulation of a thinking person)
- 2008-09-13 11:11:41下载
- 积分:1
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fisher
matlab实现fisher判别,对于统计方面有重要的应用,适合初学者学习(fisher discriminant matlab realize, for statistics has important applications, suitable for beginners to learn)
- 2013-09-09 16:51:33下载
- 积分:1
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pacf
partial autocorrelation plot to decide the order of arima model
- 2014-11-14 16:38:05下载
- 积分:1
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Matlab
MATLAB源文件,共有10个chapter (MATLAB source files, a total of 10 chapter)
- 2008-03-28 09:48:11下载
- 积分:1