coding gain

"coding gain"的翻譯和解釋

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As one of the key signal processing technology of mimo , the space - time - code ( stc ) can achieve diversity and coding gain from the joint coding both in space and time field , while without any increase of bandwidth
而空時碼( stc )則是mimo的關(guān)鍵信號處理技術(shù)之一,該技術(shù)能在不增加帶寬的情況下,通過空間和時間域上的聯(lián)合編碼來實(shí)現(xiàn)一定的分集增益和編碼增益。
The fourth part considered how to improve system performance by adopting transmission diversity in flat fading channels . in the traditional space - time trellis code design , the space diversity , time diversity and channel code are concerned together to get best space diversity , time diversity and code gain
傳統(tǒng)的空時格碼把空間分集、時間分集和前向糾錯編碼聯(lián)合設(shè)計，以n摘要獲得最大的空間分集、時間分集、信道編碼的增益。
This novel transmit diversity technique , which combines channel coding , modulation and signal processing at receive terminal , can make full use of the fading multi - path in the wireless communication systems so as to mitigate the signal attenuation . this technique is mainly designed to combat channel fading in downlink transmission by combining the technique of channel coding and that of array diversity , hence increasing the capacity of wireless communications systems and giving diversity gain and coding gain to them
基于多輸入輸出( mimo )的空時編碼技術(shù)是實(shí)現(xiàn)未來帶寬資源日益緊張的高速無線數(shù)據(jù)通信系統(tǒng)的重要技術(shù),它結(jié)合了信道編碼、調(diào)制和接收端的信號處理,能夠充分利用無線通信信道中多散射體環(huán)境所造成的多徑,從而提供信號的抗衰落性能。
Since the fundamental idea of tcq originates from trellis coded modulation , in order to comprehend tcq , it firstly introduces tcm . also , because viterbi decoding algorithm is the key of coding gain of tcm and tcq , it particularly introduces convolutional coding and viterbi decoding algorithm
由于tcq的基本思想源于tcm ，較好地掌握tcm的思想有助于深刻理解tcq ，所以首先介紹了網(wǎng)格編碼調(diào)制；維特比算法是tcm和tcq提高編碼增益的關(guān)鍵，文中對tcm和tcq都要用到的卷積編碼和維特比譯碼也作了詳細(xì)的介紹。
The error - control system can increase the transmission reliability of communication system , and reduce the emission power and the capacity of the communication apparatus , so it is extensively applied in digital transmission system , for example , satellite communication system , mobile communication system , data storage and so on . coding gain is an important index for the error control system
差錯控制系統(tǒng)對于提高通信系統(tǒng)的傳輸可靠性，降低通信設(shè)備的發(fā)射功率和減小體積具有重要意義，因此廣泛應(yīng)用于數(shù)傳系統(tǒng)，如衛(wèi)星通信系統(tǒng)、移動通信系統(tǒng)、數(shù)據(jù)存儲等方面，而對于一個差錯控制系統(tǒng)的衡量指標(biāo)就是編碼增益。
An improved viterbi algorithm of dsp generat ion is brought up to , and a new coding gain testing system is designed . the system tests the coding gain of the error - control system , and the coding gain is 9 . 4db which exceeds the proposed index . at last , some suggestions are presented for the work in the future
在對維特比譯碼算法研究的基礎(chǔ)上，提出了維特比譯碼算法基于dsp的改進(jìn)方法，并且設(shè)計出一種新的編碼增益測試系統(tǒng)，對卷積編碼和維特比譯碼組成的差錯控制系統(tǒng)的編碼增益進(jìn)行了測量，測試結(jié)果為9 . 4db ，優(yōu)于設(shè)計指標(biāo)，最后提出了一些對將來工作的建議。
The proposed intlbt is implemented by a series of dyadic lifting steps , and provides fast , efficient computation of the transform coefficients as well as the ability to map integers to integers . application of the novel intlbt in lossy image coding gains very competitive results comparing to the performance of the much more complex cohen - daubechies - feauveau ( cdf ) 9 7 - tap biorthogonal wavelet with irrational coefficients
實(shí)驗(yàn)結(jié)果表明，整數(shù)雙正交疊式變換是一種有效的圖像壓縮變換，它的壓縮質(zhì)量大大超過了整數(shù)離散余弦變換和運(yùn)算量更多的二進(jìn)制整數(shù)小波變換，與常用的9 / 7小波也非常接近。