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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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shiyuzhuanpinyu
这是一个滤波器，用来将时域信号转换位频域进行分析滤波后，再转为时域信号的小程序(This is a filter for converting the digital time domain signal analysis of the frequency domain filtering, a time domain signal of the small sub-program)
- 2013-11-17 21:05:57下载
- 积分：1
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sanxiangnibianfangzhengaile2
说明： 三相逆变并网，采用全前馈能有效抑制谐振。(Three-phase inverters connected to grid can effectively suppress resonance by using full feed-forward.)
- 2019-04-26 09:54:12下载
- 积分：1
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3
说明： 编程实现图像DCT高通、低通滤波器并与傅立叶变换做比较(Programming image DCT high pass, low pass filter and compared with the Fourier transform)
- 2011-03-11 11:31:36下载
- 积分：1
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autoc
自回归模型相关的东东。(regression models related to the Eastern.)
- 2021-04-07 11:49:01下载
- 积分：1
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FDPIM_Encode
关于语音通信信道调制的程序代码，是论文的仿真程序(About voice communication channel modulation code, the authors of the paper simulation program)
- 2013-12-11 09:27:39下载
- 积分：1
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SimulationUsingMatlab
这是一份关于通信系统仿真的MATLAB源例程程序。(SimulationUsingMatlab)
- 2010-09-18 15:29:51下载
- 积分：1
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Smscorrelation
求逐月异常序列x(n,12)和y(n,12)(n是年)的相关系数r(24)，其中j=1～12是1～12个月的情形，13～22是冬、春、夏、秋、冬季逐月、春季逐月、夏季逐月、秋季逐月、逐月、年、冬半年逐月（NDJFMA）、夏半年逐月（MJJASO）的序列的情形
(Abnormalities associated)
- 2014-01-19 22:36:55下载
- 积分：1
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ab
说明： 可以读出股票作为个人在股票软件方面的一个小尝试(Can be read as an individual stock in the stock software is a small attempt)
- 2010-04-16 01:51:06下载
- 积分：1
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image_fusion_tutorial_Michael_Heizmann
Image Fusion (A slide tutorial by Dr.-Ing Michael Heizmann.)
- 2009-09-28 20:00:13下载
- 积分：1
