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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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guiLibFetion
GUI库飞信,精选ios编程学习源码,很好的参考资料。(GUI Fetion, selection of learning IOS programming source code, a good reference.)
- 2013-12-16 21:20:24下载
- 积分:1
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Bear-P
ios 6 programming and example source
- 2014-01-09 18:43:51下载
- 积分:1
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01
说明: matlab教程,希望大家一起来学习,我看多好几遍了,非常不错。(matlab tutorial I hope everyone will work together to learn, I can see how good a few times, and very good.)
- 2009-10-12 09:38:48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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ios_Chat
微信功能实现通信机制沟通你我他.在你我他之间架起沟通的桥梁(Micro-channel communication mechanism to achieve functional communication you and me. Between you and me, he acted as bridges)
- 2014-02-10 18:46:52下载
- 积分:1
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AdvancedURLConnect
How to check the url connections. Pretty straight forward.
- 2010-08-07 13:40:56下载
- 积分:1
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FruitPair
基于IPHONE平台开发的水果对对碰游戏,其中使用了COCOS2D游戏引擎(fruit game for iphone )
- 2011-01-12 11:55:30下载
- 积分:1
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7654356
右边伸出的bar导航,IOS编程学习源码,很好的参考资料。(Bar navigation right out, learning IOS programming source code, a good reference.)
- 2013-12-05 09:38:30下载
- 积分:1
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DSP_FFT
产生两不迥频率的信号,并对两信号作复数FFT变换,找出频率为50Hz的信号对其进行能量计算(Two distant signal is not generated frequency, and two signals for complex FFT transform to identify the frequency of 50Hz signal to calculate its energy)
- 2013-12-01 10:35:35下载
- 积分:1