linear adj. 1.線的,直線的。 2.長度的。 3.【數(shù)學】一次的,線性的。 4.【動、植】線狀的;細長的。 5.由線條組成的,以線條為主的,強調(diào)線條的。 linear amplification 直線放大。 a linear equation 一次方程式。 a linear leaf 線形葉。 linear arts 線條藝術(shù)。
block n. 1.片,塊,大塊;粗料,毛料;木料;石料;金屬塊;【建筑】塊料,砌塊;【地質(zhì)學;地理學】地塊。 2.俎,砧板,(切肉等的)墩,臺;斷頭臺;騎馬臺(等);【印刷】(插圖)襯版,版墊;(印花)模板;剪裁樣板;(裝訂)鋼模;帽模,帽楦;【造船】船臺;煞車;【計算機】部件。 3.滑車,轆獸,滑輪組。 4.一組,一套,一批;黏貼的帳;大宗股票。 5.一排大建筑;〔英國〕大樓,大廈;〔美國〕街區(qū)〔四條街當中的地區(qū)〕街段,地段;區(qū),區(qū)組。 6.(鐵路)區(qū)段,區(qū)截;(戲院)座位區(qū);(政府分配移民等的)劃區(qū);〔澳大利亞〕 〔the block〕 熱鬧街道,鬧市,繁華的大馬路。 7.(櫥窗陳列帽、假發(fā)等用的)木制假頭;〔美口〕頭;掛表;名譽不好的人;木頭人,笨漢;鐵石心腸的人。 8.障礙,阻礙;【無線電】停振;【醫(yī)學】阻滯;〔英國〕(交通的)堵斷;(對議案的)反對聲明;【體育】(合法)阻擋;【棒球】障礙球。 9.集團 (= bloc)。 concrete blocks 水泥板。 paving blocks 鋪路石板。 a block of stone 石料。 building block [blocks] 【建筑】砌塊〔兒童玩的積木〕。 a hat block 帽楦。 a single [double] block 單〔復〕滑車。 traffic block 交通堵塞。 a large block of tickets 一大迭戲票。 He has a block when it comes to math. 一碰上數(shù)學,他的腦子就木了。 an input [output] block 【計算機】輸入〔輸出〕部件。 a swage block 【機械工程】型砧。 gauge block 【機械工程】塊規(guī)。 screw block 千斤頂。 as like as two blocks 像極了的。 cut blocks with a razor 剃刀砍木頭,用非其當。 go [be sent, be brought] to the block (被送)上斷頭臺;被提出拍賣。 in [the] block 成批,成套。 knock sb.'s block off 給某人吃苦頭,痛揍某人。 on the block 拿出拍賣;〔澳大利亞〕逛鬧市。 to do the block 散步,逛馬路。 vt. 1.妨礙,阻撓;堵塞,封鎖;凍結(jié)(資金等);杜絕;〔英國〕對(議案)事先作反對宣傳。 2.把…放置臺上;用木片等塞牢;使…成塊狀;用帽模打(帽樣);給(書籍)燙金;(球類運動中合法)阻擋。 3.【鐵路】以區(qū)截制管理(行車)。 4.【戲劇】排練(主要位置和動作)。 5.畫出…的輪廓〔草圖〕。 block a hat 打帽樣。 blocked funds 被凍結(jié)資金。 two-way blocking positions 兩面阻擊陣地。 a blocking oscillator 【物理學】間歇振蕩器。 vi. 1.【戲劇】排練。 2.【體育】(合法)阻擋。 block in 1. 畫略圖;設(shè)計。 2. 堵塞。 block out 畫略圖;擬大綱,打草樣。 block up 堵塞,隔斷,封鎖;停用。 Blocked! 〔揭示〕禁止通行! 此路不通!
Absolute minimal trellis complexities of extended codes and their dual codes of two types of linear block codes whose code length is odd are given 給出了兩類奇數(shù)碼長線性分組碼的擴展碼及其對偶碼的絕對最小網(wǎng)格圖復雜度。
Although the estimation algorithm is carried out by parity check code , but it is also applicable in general linear block codes to estimate the channel ’ s parameter 本文算法不僅可以利用偶校驗碼的碼結(jié)構(gòu)去估計信道參數(shù),而且對于一般的線性分組碼也適用。
The other is the modified hamming bound , also the geometry of the bound is introduced . the fourth chapter is about the linear block codes and their unequal error protection capability 第三章主要證明了兩個關(guān)于非均勻保護的性能限,這兩個性能限不僅對線性碼有效,對非線性碼同樣有效。
Low density parity check codes are a class of linear block error - correcting codes that can be defined by the very sparse parity - check matrix . their error performance approach shannon limits Ldpc碼(低密度校驗碼)是一類可以用非常稀疏的奇偶校驗矩陣定義的線性分組糾錯碼,具有逼近香農(nóng)限的性能。
Among the linear block codes , rs code is an important one widely used in modern digital communications , which can correct both random and bursty errors with the most powerful error - correcting capability Rs碼是一種典型的糾錯碼,在線性分組碼中,它具有最強的糾錯能力,既能糾正隨機錯誤,也能糾正突發(fā)錯誤。
Ldpc ( low density parity check ) code is a kind of linear block code that defined by very sparse parity matrix or tanner graph , and it is also called gallager code since gallager initially presented it Ldpc ( lowdensityparitycheck )碼是一類用非常稀疏的校驗矩陣或二分圖定義的線性分組糾錯碼,最初由gallager發(fā)現(xiàn),故亦稱gallager碼。
The linear block code is called a binary low - density parity - check code if it is based on a sparse parity - check matrix . this sort of code was originally proposed by dr . gallager in 1962 , which cannot attract a large amount of interest at that time 低密度奇偶校驗( ldpc )碼是基于稀疏校驗矩陣的線性分組碼,它最初由gallager于1962年提出,當時并未受到人們的重視。
Some results on the undetected error probability of linear codes for pure error - detection are , at present , generalized for both error detection and correction . an analytic formula is obtained to calculate the undetected error probability of linear block codes for simultaneous error detection and correction 在只檢錯時,證明了糾正兩個錯誤擴展bch碼是最佳檢錯碼; m大于4的非線性等重碼( 2m , 2 , m )不是最佳碼。