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3.6
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 15:16:21下载
- 积分:1
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iphonedock
这是一个特效是仿照苹果电脑煮面的一个特效。这是一个特效是仿照苹果电脑煮面的一个特效。(This is a special effects is modeled as a cooking apple computer special effects. This is a special effects is modeled as a cooking apple computer special effects.)
- 2011-10-20 12:23:37下载
- 积分:1
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XMLPerformance
说明: XML解析,功能很强大,大家可以参照下,肯定会有用(XML Parser,powerful functions,you can learn something from it easily.It must be useful to you!)
- 2011-03-08 10:11:10下载
- 积分:1
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Implementation-of-transposition-cipher
Implementation of Transposition Cipher in C
- 2014-10-01 13:20:22下载
- 积分:1
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Objective_C-basic
object-c 基本语法说明- 利用在xcode上(object-c basic grammer- use xcode tool)
- 2014-08-19 14:57:19下载
- 积分:1
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Memory
a sample c embedded program for beginners
- 2010-08-25 18:52:06下载
- 积分:1
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start
评分打星星的一个例子 可以用来参考 很实用(An example of playing star ratings can be used to refer to)
- 2011-11-12 12:09:29下载
- 积分:1
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3DLuxunNaviDemo
UINavigationController Push 堆栈动画(The Stack Animation of Push when UINavigationController‘s pushed)
- 2015-03-07 20:36:22下载
- 积分:1
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suixi
此项目完整玩具机器人代码和原理,还元器件清单;(This project complete toy robot code and principles, to restore the device list )
- 2015-04-15 23:33:44下载
- 积分:1
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Implementation-of-Polyalphabetic-cipher
Implementation of Poly alphabetic Cipher
- 2014-10-01 13:32:56下载
- 积分:1