code n. 1.法典;法規(guī)。 2.規(guī)則,準則;(社會、階級等的)慣例,習俗,制度。 3.(電)碼,代碼,密碼,暗碼;代號,略號,暗號。 4.【生物學】遺傳(密)碼。 the civil [criminal] code民[刑]法典。 the moral code道德準則。 code of signals 信號密碼(本)。 code of the school 校規(guī)。 code and conventions 規(guī)章制度。 C- Napoléon 拿破侖法典。 C- of Hammurabi (古代巴比倫的)漢穆拉比法典。 code of honour 社會禮法;決斗慣例。 code of written law 成文法典。 the International Code 國際電碼。 the Morse code 摩爾斯電碼。 vt. 1.把…編成法典[法規(guī)]。 2.把…譯成[編成]電碼;編(碼);譯(碼)。 n. -r 【自動化】編碼裝置;【電訊】記發(fā)器。
Study on a new type of digital coding track circuit 一種新型的數(shù)字編碼軌道電路
Coded track circuit 編碼軌道電路
Because multipath searcher and code tracking are accomplished on the hardware , the complexity of the circuit should be concerned 同時由于多徑搜索和同步跟蹤是在硬件上進行處理,實現(xiàn)電路的復雜度也需要考慮。
The parallel scheme based on sliding correlation method is proposed in the simulation of acquisition . baseband fully time delay - locked pn code tracking loops are employed in tracking simulation 在對完全互補碼捕獲的仿真中,本文提出了基于滑動相關(guān)法的并行捕獲實現(xiàn)方案。
Synchronization technique of spread spectrum code is utilized in two stages . multipath searcher coarsely estimates the pn code phase and code tracking confirm the pn code phase precisely 這需要采用擴頻系統(tǒng)中擴頻碼同步技術(shù),即:多徑搜索粗略地估計pn碼相位,同步跟蹤精確確定pn碼相位。
Based on experiments , a 24 - bits absolute photoelectric rotary encoder is presented in this paper . it ' s advantages lie in : 1 . it has a system for thick code tracks to automatically compensate ; 2 本文研究的是24位絕對式光電軸角編碼器,此編碼器在結(jié)構(gòu)設(shè)計上與傳統(tǒng)的編碼器的不同之處在于: 1 )粗碼道光強的自動補償系統(tǒng)。
First , we classify the multipath mitigation techniques into four categories , and then the presentation of principles and simulation of performances are done of three widely - used techniques of multipath mitigation , which are based on the code tracking loop with the name of narrow - correlator - spacing technique 、 els ( early late slope ) technique and medll technique . from the presentation and simulation , the medll technique is selected as the multipath mitigation algorithm in signal processing ’ s scope . 本章首先對多徑消除技術(shù)進行了分類,然后主要對基于碼跟蹤環(huán)路的三種技術(shù)-窄相關(guān)( narrowcorrelatorspacing )技術(shù)、 els ( earlylateslope )技術(shù)和medll ( multipathestimatingdelaylockloop )技術(shù)-進行原理分析和性能仿真,從中選擇medll技術(shù)作為接收機信號處理階段的多徑消除算法。
And the pn code tracking scheme adequate for the wcdma uplink is presented and combined with the mulipath acquisition and channel estimation algorithms to complete the rake receiver scheme . computer simulations show the tracking scheme meets the requirement of wcdma uplink in 3gpp protocols and has good performance 通過大量的計算機仿真和驗證,證明本論文提出的同步跟蹤方案完全能達到3gpp協(xié)議對上行鏈路接收機的要求,具有較好的性能,同時指出進一步研究和提高的思路。
Multipath acquisition decide the coarse pn code phase and pick up the available multipath components . following , code tracking confirm the pn code phase precisely and track every multipath component ' s delay drifting due to doppler effect . in this paper , the code tracking technique in spread spectrum communication is introduced 本論文首先介紹了在擴頻通信中采用的同步跟蹤技術(shù),結(jié)合wcdma上行鏈路的特點,提出了適合wcdma上行鏈路的pn碼跟蹤方案,并與現(xiàn)有的多徑搜索和信道估計算法構(gòu)成完整的上行鏈路rake接收機方案。
This article focuses on the study of workshop level ' s management reform based on the factory level production management system , to accomplish the process standardization and automatization of workshop work planning management , workshop work management , vehicle vin bar code tracking management , and workshop resources management and control , to finally accomplish the goal to use information technology to support production management modernization 本文著重研究,在工廠級的生產(chǎn)管理系統(tǒng)的基礎(chǔ)上向下延伸,著重于車間級管理上進行改革,實現(xiàn)車間作業(yè)計劃管理、車間作業(yè)管理、汽車vin條碼追蹤管理、車間資源管理與控制的流程化、自動化,達到以信息化支持生產(chǎn)管理模式現(xiàn)代化的目的。