bit n. 1.少許,一點(diǎn)兒,一些;(食物的)一口,少量食物。 〔pl.〕 吃剩的食物;小片。 2.〔口語(yǔ)〕一會(huì)兒,一轉(zhuǎn)眼,短時(shí)間。 3.〔英國(guó)〕小銀幣,小銅幣;〔美口〕十二分半。 4.(戲里的)小角色;(電影、戲劇)一小段;(書)一小節(jié)。 5.〔俚語(yǔ)〕小姑娘,少女;女人 6.〔美國(guó)〕表演,演奏;例行節(jié)目;〔轉(zhuǎn)義〕老一套。 7.【計(jì)算機(jī)】畢特〔二進(jìn)位制信息單位〕;位,數(shù)位;環(huán)節(jié)。 8.〔美俚〕刑期。 a bit of chalk 一點(diǎn)兒粉筆。 exchange bits of gossip 閑聊幾句。 bite [tear] sth. into bits 咬[撕]碎。 wait a bit 等一下,等一會(huì)兒。 I was in India for a bit. 我在印度作短期逗留。 six bits (美元)七角五分。 a twopenny bit 一枚兩便士銅幣。 make a supper from the bits 把上頓剩下的菜又當(dāng)晚飯。 a bit 有點(diǎn)兒〔作副詞用〕 (I was a bit impatient. 我有點(diǎn)不耐煩了)。 a bit and a sup 一點(diǎn)兒吃喝。 a bit of 一點(diǎn)兒,少量的 (a bit of land 一小塊地。 Have a bit of patience. 請(qǐng)忍耐一下。 get a bit of rest 休息片刻)。 a bit of a ...有點(diǎn)兒…的味道,多少有些…(a bit of a girl 有點(diǎn)兒像女孩子。 a bit of a snob 有點(diǎn)兒勢(shì)利的味道。 I am a bit of a reader myself. 我自己好歹也是個(gè)讀者)。 a bit of all right 〔口語(yǔ)〕無可挑剔的人[物];美麗[可愛]的女人 a bit of blood 純血種(的馬)。 a dainty bit 一口好吃的東西。 a good bit 〔俚語(yǔ)〕相當(dāng)長(zhǎng)久。 a long [short] bit 〔美俚〕一角五分[一角]錢。 a nice bit of (money) 〔俚語(yǔ)〕很多(錢)。 at the bit 〔蘇格蘭語(yǔ)〕 適當(dāng)其時(shí)。 bit by bit 一點(diǎn)一點(diǎn)地;漸次。 bit of business 〔俚語(yǔ)〕人;家伙。 bit of stuff 〔俚語(yǔ)〕(俗氣的)女子。 bits and pieces 零星小玩意,雜物。 by bits = bit by bit. do one's bit 應(yīng)盡一臂之力;盡自己本分。 every bit 由任何一點(diǎn)看;完全 (He is every bit a scholar of him. = He is a scholar, every bit of him. 他是一個(gè)地道的學(xué)者)。 give (sb.) a bit of one's mind 直說;面責(zé)。 not a bit (of it) 一點(diǎn)沒有,一點(diǎn)也不 (I don't mind a bit. 毫無關(guān)系,我根本不放在心上。 O no, not a bit. 啊不,沒關(guān)系〔對(duì)別人向自己道歉的回答〕)。 pull to bits 1. 把…撕成碎片。 2. 把…貶得一文不值。 quite a bit 〔美俚〕相當(dāng)多,相當(dāng)。 bit3 n. 1.馬銜,(馬的)咬嘴,嚼子。 2.約束,抑制。 3.(斧等的)刃口,(工具上的)切削刃;刀頭,刀片;鉆頭;錐,鑿子;鑰匙齒。 jack bit 巖心鉆頭。 finishing bit (車工)光刀刀頭。 a drill bit 鉆頭(尖)。 draw bit 勒馬;勒著,減緩速度。 take [get] the bit between [in] the [one's] teeth (馬)不服管;(人)不肯受約束,反抗。 take the bits (馬張嘴)接受上嚼子。 vt. (bitted bitting) 1.給(馬)上嚼子;使(馬)習(xí)慣于上嚼子。 2.約束,抑制,勒著。 3.(鑰匙)銼齒。 bit1 bite 的過去式及過去分詞。
Bit synchronization circuit design for digital communication system 數(shù)字通信系統(tǒng)位同步電路設(shè)計(jì)
The line code is an efficient way to make the baseband digital signal have some massage about the bit synchronization 經(jīng)過線路編碼,可以使基帶信號(hào)含有定時(shí)信息,解決了通信中的位同步。
Fist , quick bit synchronization . the common methods are relative synchronization , multi - phase clock sample and so on 第一,快速比特同步。常規(guī)的方案有相關(guān)同步法和多相位時(shí)鐘采樣法等。
Only when olt receives the first few bits of the uplink burst of onu and achieves the bit synchronization can the onu signal be restored Olt必須在收到onu上行突發(fā)的前幾個(gè)比特內(nèi)實(shí)現(xiàn)比特同步,才能恢復(fù)onu的信號(hào)。
There are different ways to make the bit synchronization , for example : the technique of the pilot frequency , the technique of some change about the baseband signal 為了保證在同步傳輸系統(tǒng)中的位同步,有導(dǎo)頻及對(duì)基帶信號(hào)信號(hào)直接變換的方式,直接變換的方式中,使用線路編碼是比較常見的。
When receiving the uplink frame , olt searches the synchronization pattern to quickly capture the phase information of code flows and achieve the bit synchronization . based on the delimitation pattern , it then delimits the atm cell to accomplish the byte synchronization Olt在接收上行幀時(shí),搜索同步圖案,并以此快速獲取比特流的相位信息,達(dá)到比特同步;然后根據(jù)定界圖案確定atm信元的邊界,完成字節(jié)同步。
The paper introduces the modulation and demodulation theory of / 4 - dqpsk . recommended pulse shaping filter and bit synchronization detailed . then author use matlab software to simulate the whole process of modulation and demodulation and use verilog hardware description language to design the module 本文中介紹了/ 4 - dqpsk的調(diào)制解調(diào)原理,著重介紹了成形濾波器,位同步實(shí)現(xiàn),并對(duì)調(diào)制解調(diào)的全過程進(jìn)行matlab仿真并用verilog硬件描述語(yǔ)言設(shè)計(jì)實(shí)現(xiàn)各個(gè)模塊。
Qe1 achieve the whole synchronization by software and hardware . during the course of the initialization of the qe1 system , the chip pm4354 can accomplish the task of synchronization of bit , frame and multiframe after the chip initialization by the software . after pm4354 accomplishes the bit synchronization , qel will read the status registers of the pm4354 to get the status of each el circuit and choose recovered clock of the specified the el circuit as the external timing source of the whole htc - 5200an equipment Qe1系統(tǒng)在系統(tǒng)初始化時(shí),通過軟件完成對(duì)硬件芯片pm4354的初始化工作后,便可利用該芯片完成4路e1的同步(位同步、幀同步和復(fù)幀同步) ;在pm4354完成時(shí)鐘提取的任務(wù)后, qe1通過不斷地訪問pm4354的狀態(tài)寄存器,獲得每路e1的狀態(tài)信息,在時(shí)鐘源的選擇原則下,選擇指定e1線路的恢復(fù)時(shí)鐘作為整個(gè)htc - 5200an節(jié)點(diǎn)設(shè)備的外部參考時(shí)鐘,從而解決了htc 5200an的中繼板卡由e1變?yōu)閝e時(shí)所帶來的網(wǎng)同步時(shí)鐘源。
The line code is very efficient for bit synchronization in the communication systems and it is useful to choose the appropriate line code . the dissertation introduces the advantages of the manchester code , then studies the way to realize the encoding and decoding of the manchester code , and introduces the process of the joint - debugging on the whole system . the contents of this dissertation are as follows : 1 本文首先討論了線路編碼與實(shí)現(xiàn)通信中位同步的關(guān)系,以此為出發(fā)點(diǎn),討論了曼徹斯特碼作為一種線路碼于其他碼型的相對(duì)優(yōu)勢(shì),而后研究了編解碼器實(shí)現(xiàn)方案中的幾種待選方案,并對(duì)幾種方案做了對(duì)比論述后,設(shè)計(jì)了合適的方案,接著詳細(xì)研究了曼徹斯特碼編解碼器的硬件實(shí)現(xiàn)并進(jìn)行了仿真。
8b / 10b encoding adapt the characteristic of fiber channel very well , it has been used in high - speed fiber transmission broadly . it avoids the appearance of continuous “ 1 ” , “ 0 ” , offers plenty of bit synchronization time information , enhances the stability of output light signal , reduces interference between signals and offers proper redundancy to check error through transmission 它避免了連“ 1 ” 、連“ 0 ”碼的出現(xiàn),提供了豐富的位同步定時(shí)信息,減少了直流基線漂移,提高了光輸出功率的穩(wěn)定性,減少了高低頻分量,改善了信號(hào)間的串?dāng)_,提供了適當(dāng)?shù)娜哂?便于檢測(cè)系統(tǒng)傳輸中帶來的錯(cuò)誤。