例句與用法

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1. Bandwidth efficient multilevel coded modulation system based on ldpc codes is described in the last part of this thesis . furthermore , the designing method of combining component code rate and degree distribution is introduced
   介紹了ldpc碼的多層編碼調(diào)制系統(tǒng)中，分量碼碼率與度序列分布聯(lián)合最優(yōu)的設(shè)計(jì)準(zhǔn)則，并給出了相應(yīng)的理論分析。
2. By reducing coding rate , more speech signals can be transferred in the same channel . so , low bit rate speech coding has especially important significance when the transmission rate is limited very strictly
   通過(guò)降低編碼速率,可以使同樣的信道容量能夠傳輸更多路的語(yǔ)音信號(hào),在傳輸比特限制十分嚴(yán)格的場(chǎng)合,低速率語(yǔ)音編碼具有特別重要的意義。
3. When the error code rate is high , the average throughout of the system is 14 times higher than the traditional weighted poll scheduling algorithm , and the fairness coefficient still reaches more than 0 . 8
   仿真結(jié)果表明，所提算法能有效地改善系統(tǒng)的吞吐量及帶寬分配的公平性，當(dāng)信道誤碼率較高時(shí)，系統(tǒng)平均吞吐量比傳統(tǒng)加權(quán)輪詢(xún)調(diào)度算法提高14倍，而公平性系數(shù)仍達(dá)到0 . 8以上。
4. Since ldpc codes have a wonderful future , an adaptive coding scheme was developed based on quasi - regular ldpc codes and it encodes the source bits with different code rate by dividing the original parity check matrix properly
   由于ldpc碼在未來(lái)的廣闊應(yīng)用前景,本文提出一種針對(duì)結(jié)構(gòu)化ldpc碼的自適應(yīng)編碼方案,對(duì)原始校驗(yàn)矩陣適當(dāng)變化,即可對(duì)信源信息進(jìn)行不同碼率的自適應(yīng)編碼。
5. Low density parity check ( ldpc ) codes are shown to be one class of shannon limit approaching codes . with advantages of high encoding gain , low decoding complexity and flexible code rates , etc . , the research of these codes has become a hot spot of coding academia
   低密度校驗(yàn)碼( ldpc )性能接近香農(nóng)限,具有編碼增益高、譯碼簡(jiǎn)單快捷、碼率靈活等優(yōu)點(diǎn),是當(dāng)前編碼界的研究熱點(diǎn)。