Firstly it describes the development ,basic principle and application and propagation characteristic of mobile channel , then investigates the system structure of DAB transmitter and receiver separately and the key technology of realization of the digital audio broadcast system.And then discusses the system component of FFT －the demodulation module of OFDM .The 409- points FFT module employs a radix-4 decimation-in-frequency algorithm, includes arithmetic element , read and write address element ,twiddle factor element and control element , is realized by FPGA. In the end , the result is verified in the matlab .

首先概述了OFDM的發(fā)展WWW性com、基本原理和應用以及移動信道的傳播特性，接著分別研究了數(shù)字音頻廣播接收機和發(fā)射機的系統(tǒng)結構我要看狼友黄色视频，以及數(shù)字音頻廣播系統(tǒng)實現(xiàn)的關鍵技術一级一级黄，然后詳細論述了OFDM解調(diào)模塊FFT的系統(tǒng)結構，主要研究了4096點FFT采用基－4按頻率抽取實現(xiàn)的算法av中文在线一级片，整個FFT模塊包括了運算單元精品一级黄色视频国产片一区、讀寫地址單元、旋轉(zhuǎn)因子單元以及控制單元国产精品一级黄色毛片，并且在FPGA中進行了硬件實現(xiàn)一区二区视频在线导航，并在matlab環(huán)境下對結果進行了驗證。

Why bother trying to compete for world firsts if the leading guild has to twiddle their thumbs waiting for the next stage to be open, watching everyone and his mother catch up.

世界的一流工會全部都茫然地等待著下一道大門的開啟淫荡少妇一级性爱视频，觀著其他的公會乃至自己老媽的公會有足夠的時間達到于自己不相伯仲的水準一级特黄aa毛片大片在线。

I think the Sunwell gate "idea" was the final blow. Why bother trying to compete for world firsts if the leading guild has to twiddle their thumbs waiting for the next stage to be open, watching everyone and his mother catch up. Why bother race to the finish line when it''s only Kil''jaeden that matters?

我認為太陽井開門的事件是一個敗筆，一個世界的FD讓我們覺得無比煩心世界的一流工會全部都茫然地等待著下一道大門的開啟伊甸园永久地址在线2022，看著其他的公會以致自己老媽的公會有足夠的時間達到于自己不相昆季的水準為啥子不直接把這種隊伍扔到最終BOSS基爾加丹面前亚洲毛片在线播放？

All I did to attract such attention was spread my fingers and twiddle with my glitzy earings.

我不過是伸出手指輕輕捻弄我那耀眼的耳環(huán)，便引起如此注意亚洲欧美性爱一区。

I used to be ashamed of this childish habit but now I can hold my head up and twiddle with impunity.

幾乎所有的孩子都和他們的雙親生活在一起国产亚洲真人视频在线观看。

More : toy with, philander with, play about with, fool with, philander, play around with, twiddle with, twiddle, sport with, toy, Dally, tamper, play fast and loose, flirt, fiddle with, horse around

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After doing that, the paper points out the universal architectures of the high-speed real-time signal processing system and describes how to implement them.. Since FFT plays an important role in digital signal processing, implementing FFT with FPGA is presented and the total realization graph is designed. For improving speed and decreasing computing complexity, high efficiency multiplier algorithm is used to realizing twiddle factor multiplier of butterfly processing unit.

最后本文描述了數(shù)字信號處理系統(tǒng)結構的實現(xiàn)方法国产片免费，指出常見的高速性欧美裸体XⅩⅩ、實時信號處理系統(tǒng)的四種結構；由于FFT算法在數(shù)字信號處理中占有重要的地位一区二区欧美亚洲，所以本文提出了用FPGA實現(xiàn)FFT的一種設計思想激情亚洲小说网，給出了總體實現(xiàn)框圖：重點設計實現(xiàn)了FFT算法中的蝶形處理單元，采用了一種高效乘法器算法設計實現(xiàn)了蝶形處理單元中的旋轉(zhuǎn)因子乘法器国产特黄特色视频网站，從而提高了蝶形處理器的運算速度欧美中韩一区二区，降低了運算復雜度。

She thinks I should twiddle my thumbs while...

停下 她認為我會玩拇指在午夜在线色呦呦。人妻人操人人操人人插。。

When we needed your help,all you did was sit back and twiddle your thumbs.

在我們需要你幫助的時候亚洲网站黄色，你卻閑坐一旁撫弄你的大拇指日韩成人精品视频自拍。

When we need you help,all you did was sit back and twiddle you thumbs.

當我們需要你幫助時，你卻按兵不動亚洲欧美人成人综合在线播放，親得無聊亚洲一级毛片免费看。