trellis design 中文意思是什麼
trellis design
解釋
方格紋-
Dundrum, south, or sutton, north, both localities equally reported by trial to resemble the terrestrial poles in being favourable climates for phthisical subjects, the premises to be held under feefarmgrant, lease 999 years, the message to consist of 1 drawingroom with baywindow 2 lancets, thermometer affixed, 1 sittingroom, 4 bedrooms, 2 servants rooms, tiled kitchen with close range and scullery, lounge hall fitted with linen wallpresses, fumed oak sectional bookcase containing the encyclopaedia britannica and new century dictionary, transverse obsolete medieval and oriental weapons, dinner gong, alabaster lamp, bowl pendant, vulcanite automatic telephone receiver with adjacent directory, handtufted axminster carpet with cream ground and trellis border, loo table with pillar and claw legs, hearth with massive firebrasses and ormolu mantel chronometer clock, guaranteed timekeeper with cathedral chime, barometer with hygrographic chart, comfortable lounge settees and corner fitments, upholstered in ruby plush with good springing and sunk centre, three banner japanese screen and cuspidors club style, rich wine - coloured leather, gloss renewable with a minimum of labour by use of linseed oil and vinegar and pyramidically prismatic central chandelier lustre, bentwood perch with a fingertame parrot expurgated language, embossed mural paper at 10 - per dozen with transverse swags of carmine floral design and top crown frieze, staircase, three continuous flights at successive right angles, of varnished cleargrained oak, treads and risers, newel, balusters and handrail, with stepped - up panel dado, dressed with camphorated wax, bathroom, hot and cold supply, reclining and shower : water closet on mezzanine provided with opaque singlepane oblong window, tipup seat, bracket lamp, brass tierod brace, armrests, footstool and artistic oleograph on inner face of door : ditto, plain : servant s apartments with separate sanitary and hygienic necessaries for cook, general and betweenmaid salary, rising by biennial unearned increments of 2, with comprehensive fidelity insurance annual bonus, and retiring allowance based on the 65 system after 30 years service, pantry, buttery, larder, refrigerator, outoffices, coal and wood cellarage with winebin still and sparkling vintages for distinguished guests, if entertained to dinner evening dress, carbon monoxide gas supply throughout
一截彎木上棲著一隻馴順得能停在手指上的鸚鵡它吐字文雅，墻上糊著每打價為十先令的壓花壁紙，印著胭脂紅色垂花橫紋圖案，頂端是帶狀裝飾一連三段櫟木樓梯，接連兩次拐成直角，都用清漆塗出清晰的木紋，梯級登板起柱欄桿和扶手，一律用護板來加固並塗上含樟腦的蠟浴室里有冷熱水管，盆湯淋浴，設備俱全。位於平臺246上的廁所里，長方形窗子上嵌著一塊毛玻璃，帶蓋的坐式抽水馬桶，壁燈，黃銅拉鏈和把手，兩側各放著憑肘幾和腳凳，門內側還掛有藝術氣息濃厚的油畫式石版畫。另外還有一間普通的廁所廚師打雜的女僕和兼做些細活的女傭的下房裡也分別裝有保健衛生設備僕役的工錢每兩年遞增兩英鎊，並根據一般忠誠勤勞保險，每年年底發獎金一英鎊，對工滿三十年者，按照六十五歲退職的規定，發退職金餐具室配膳室食品庫冷藏庫主樓外的廚房及貯藏室等堆煤柴用的地窨子里還有個葡萄酒窖不起泡亮光閃閃的葡萄酒，這是為宴請貴賓吃正餐身穿夜禮服時預備的。 -
Space - time codes can be divided into tree mainly parts : bell layered space - time architecture ( blast ), space - time trellis codes ( sttc ) and space - time block codes ( stbc ). in this paper, we mainly compare the performance of blast and stbc in many aspects, such as design criterion, transmission rate, diversity gain, diversity combining, bit error rate and channel capacity etc. in this paper, we first respectively analysed the instantaneous received symbol energy - to - noise ratio of v _ blast in the diversity combining methods of maximal ratio combining ( mrc ), equal gain combing ( egc ) and selective combing ( sc )
Mimo技術核心是空時編碼（ stc ） 。空時編碼主要分為三種:分層空時碼（ blast ） 、空時格碼（ sttc ）和空時塊碼（ stbc ） 。本文主要對分層空時碼和空時塊碼這兩種編碼方式在設計準則、傳輸速率、分集增益、接收合併、比特差錯率和通道容量等方面進行了較為詳盡的研究。 -
The technology of trellis coded modulation ( tcm ) and viterbi decoding which could achieve high transmitting rate at a low bit ' error rate are demonstrated in detail. and then the design and achievement of itu - t v. 32 modem that based on one - dimensional tcm are expatiated. the paper also discusses the multi - dimensional tcm the itu - t v. 34 modem that based on it and tcm ' s application in the carrier communication
文中深入研究了可保證一定誤碼率的情況下能實現較高傳輸速率的網格編碼調制（ tcm ）技術和維特比譯碼技術，闡述了基於單維網格編碼調制的itu - tv . 32modem的設計和實現，討論了多維網格編碼調制技術和基於其的itu - tv . 34modem ，並對網格編碼調制在載波通信中的應用作了簡單介紹。 -
The paper discusses the part of asic design of tcm ( trellis coded modulation ) in hdtv 8vsb terrestrial channel broadcasting receiver chip. in testing, the tcm can improve the signal - to - noise by 3. 3db compared with uncoded 4 - vsb modulation, and with the 12 path intrasegment interleaving in tcm coding and viterbi decoding, system can control short burst noise error efficiently
在高清晰度電視通道接收晶元中內碼是8 ? vsb的格狀編碼，在系統性能上使用tcm編碼要比未編碼有3 . 3db的編碼增益，另外在格狀編碼中加入了12路的內交織，可有效的抑制短的突發噪聲對接收端viterbi解碼性能的影響。 -
The research for key techniques of turbo codes is processed. it includes, ? the design of optimal component codes and the performance of asymmetric turbo codes are analyzed ; ? a search algorithm for short random interleaver based on the distance spectrum and ids criteria is carried out and simplified ; ? random puncturing method to improve the weight distribution of turbo codes with some special code rates is analyzed and simulated. ? the effect of different schemes of trellis termination to the performance of turbo codes is analyzed ; ? a new low complexity decoder structure is provided ; 5
對turbo碼的部分關鍵問題進行分析和改進，主要包括： ?分析了最優分量碼的設計和非對稱turbo碼的性能； ?設計了基於距離譜和ids的短隨機交織器搜索演算法並進行了簡化； ?提出了採用隨機刪余方式改善特定高碼率turbo碼重量分佈特性的方法； ?分析了不同編碼器狀態歸零方案對turbo碼性能的影響； ?提出了一種降低實現復雜性的turbo迭代譯碼器結構。 -
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
傳統的空時格碼把空間分集、時間分集和前向糾錯編碼聯合設計，以n摘要獲得最大的空間分集、時間分集、通道編碼的增益。 -
Based on the simulation results, the key techniques for the design of turbo codes, including the choice of component codes, the design of interleaver, trellis termination schemes and puncturing methods, are discussed deeply. by measuring the statistical characteristic of extrinsic information from component decoders, new iterative stopping criteria and snr estimation updator are devised. also, it is used to implement synchronization of carrier phase
本文首先對turbo碼的基本編譯碼原理進行分析，在模擬結果的基礎上對turbo碼設計中的分量碼選擇、交織器設計、編碼器狀態歸零方案以及刪余方式等部分關鍵問題進行探討；通過考察外部信息的統計特性，設計了新的迭代停止準則和snr估計更新器，並利用外部信息實現串聯載波相位同步；最後對turbo均衡進行簡要分析。 -
The thesis also gives a simple introduction about the end of trellis, the design of puncture matrix and tcm technology, etc. though turbo code is becoming more and more popular, its practical application is limited because of absence in theory and time delay in algorithm
其它諸如trellis結尾問題、刪余矩陣的設計、 tcm調制等方面，本文給出了初步介紹，詳細可查閱文獻。 turbo碼現在正得到越來越廣泛的應用，但是由於理論的缺乏和演算法的時延性，使turbo碼的實際應用受到一定的限制。
分享友人