From the sequence correlation requiring of Turbo codes coding and decoding, correlation of sequence is proposed as a criterion to design interleaver, a good interleave scheme called clinodiagonal interleaver is obtained.

從Turbo碼距離特性解釋了Turbo碼的性能久久国产精品83，由于分量碼采用遞歸系統(tǒng)卷積碼先峰资源网，具有碼距拖尾性色色月，使得交織器長度為N的Turbo碼能使誤碼率降低到卷積碼的1/N日韩av免费一级二级三级。

Based on optimizing the interleave algorithm of 3GPP, a turbo encoder is implemented using FPGA technique.

在對3GPP的交織算法進行優(yōu)化的基礎(chǔ)上，基于FPGA技術(shù)實現(xiàn)了Turbo碼編碼器久久久久精品高清播放一区；在對用Max-Log-MAP算法進行優(yōu)化的基礎(chǔ)上夜色福利免费网页在线视频，基于DSP技術(shù)實現(xiàn)了Turbo碼的譯碼器；最后通過接口實現(xiàn)了一個完整的Turbo碼編97在线看视频道福利免费、譯碼系統(tǒng)人妻社区论坛。

Based on the signal and the system, the principle of operation for the Turbo codes is considered, and some noted problems are discussed in the design of the interleaver for Turbo codes.

從信號與系統(tǒng)角度研究了Turbo碼編碼器的工作原理，并在這一基礎(chǔ)上指出了Turbo碼交織器設(shè)計過程中應(yīng)注意的一些問題国产曰又深又千爽免费视频。

The Turbo-codes encoder is comprised of Recursive Systematic Convolutional Codes, which is connected by an interweaver. And the decoding algorithm of Turbo-codes, such as MAP, Max-log-MAP and SOVA, are all based on the soft input and soft output module.

傳統(tǒng)的Turbo碼山兩個經(jīng)交織器連接的分量碼編碼器級聯(lián)而成H动漫无码网站免费看网址免费A片，且Turbo碼的譯碼采用了軟輸入軟輸出的算法思想和迭代譯碼的方法久久中文字幕人妻丝袜，使子譯碼器之間可以相互傳遞軟信息，保證編碼信息的充分利用国产精品视频7171。

The general decoding method for Turbo codes provided by the invention adopts enhanced Max-Log-MAP algorithm, makes use of Max-Sum semiring property in the generalized distribution law and combines and simplifies measure and calculation of forward and backward status of traditional binary Turbo codes, which means combining grid graph of traditional binary Turbo codes in nature to ensure that the status measure and calculation of the traditional binary Turbo codes have the same calculation expression way with that of the duobinary Turbo codes so that a general decoding device can both decode the traditional binary Turbo codes and duobinary Turbo codes.

本發(fā)明提出的Turbo碼通用譯碼方法采用增強型Max-Log-MAP算法久久一免费视频，利用廣義分配率中的Max-Sum半環(huán)性質(zhì)，對傳統(tǒng)二進制Turbo碼的前向和后向狀態(tài)度量計算進行合并簡化欧美视频专区精品第一页，從本質(zhì)上也就是對傳統(tǒng)二進制Turbo碼的網(wǎng)格圖進行合并免费看美女隐私不遮网站，使得傳統(tǒng)二進制Turbo碼的狀態(tài)度量具有和雙二進制Turbo碼一樣的計算表達方式，從而使得通用譯碼裝置對于傳統(tǒng)二進制Turbo碼和雙二進制Turbo碼都可實現(xiàn)一级片免费按摩久久。

Compared with uncoded system, the Turbo-coded optical wireless system improves the performance of optical wireless link because Turbo code compensates losses and noises of link and improves jamming-rejection ca...

比較了基于Turbo碼的大氣無線光通信系統(tǒng)與未編碼大氣無線光通信系統(tǒng)69天堂网，發(fā)現(xiàn)Turbo碼技術(shù)能夠很好地補償和克服各種衰減和噪聲，提高了系統(tǒng)的抗干擾能力百度搜(人人肉人人摸人人操)，使系統(tǒng)的性能得到了很大的提高。

Based on this, we employ the Turbo code as channel code, and present a CWP-MC-CDMA system concatenating with space-time coding and Turbo coding, and give corresponding system model and principle analysis.

在此基礎(chǔ)上亚洲一级黄色网站在线观看，我們采用Turbo碼作為信道編碼91精品免费视频福利，提出一種級聯(lián)空時編碼和Turbo碼的CWP-MC-CDMA系統(tǒng)，給出相應(yīng)的系統(tǒng)模型和原理性分析日逼,一级黄色A级片,APP在看的。

And the basic principles of coding and decoding of Turbo Codes are discussed, the MAP and Max-Log-MAP algorithms which are suitable for the Turbo Code are detailedly discussed. Then, because the interleaves technology has important influence in radio channel, the article provides the detailed scheme of implementation in WCDMA system. Besides providing a series of simulation illuminates the influence of interleave-length to the Turbo-code performance.

由于交織技術(shù)是為了抵抗無線信道的噪聲以及衰落的影響而采取的時間分集技術(shù)777色，在WCDMA的編碼過程中具有重要的作用，所以本文對交織技術(shù)在WCDMA系統(tǒng)中的應(yīng)用也做了詳細介紹91人人操人人爱，并且通過仿真說明了交織長度對Turbo碼性能的影響人成视频在线免费观看观看。

The performance of the turbo codes employing 16, 8 or 4 states constituent codes are compared with each other. The effect of a block interleaver or a random interleaver on turbo codes is analyzed, and the concept of"effective length of codewords"is presented.

分析與模擬了由不同狀態(tài)、不同連接矢量的分量碼構(gòu)成的turbo碼的性能精品一精品一极毛片，討論了歸零處理turbo碼性能的影響狼友网站在线观看入口，研究了分組交織器與隨機交織器的性能差異，提出了&有效碼長&的概念精品国产专区在线观看； 4国产黄色试看视频。

Finally we combine turbo code with OFDM technology ,then make some emulations under several kinds of channel fading types in the mobile communication ,it has offered new choice for turbo code applying in fading channel.

所以最后我們將Turbo碼與OFDM技術(shù)相結(jié)合，針對移動通信信道的各種不同的衰落類型進行仿真分析黄色网站欧美在线免费看，為Turbo碼在衰落信道中的應(yīng)用提供了新的選擇99九九久久综合伊人不卡。