forward error control 中文意思是什麼
forward error control
解釋
前向差錯控制-
Fec forward error control
轉發誤碼控制 -
Forward error control fec
前向差錯控制 -
Because there are three inputs accede to adister of water lever control system of boiler, it is easy to bring error of water lever controlling. this iartice puts forward two methods to dispel error of water lever : ( 1 ) assistant signal self - disappear
由於鍋爐水位控制系統的調節器輸入端常加有三個輸入量，極易引起水位控制偏差，本文提出了兩種消除水位偏差的方法: （ 1 ）輔助信號自消方法（ 2 ）輔助信號對消方法。 -
Secondly, he put forward the practical criteria of differentiating between correctness and error, the criteria of " three benefits " and differentiating " right " and left in politics. thirdly, he expounded a series of principles and methods about how to bring errors under control and correct errors, such as correcting errors resolutely when one has errors, correcting errors by oneself, being friendly to the people who has errors and helping them to correct errors, no punishing those who have errors and be prudent in punishing those who have errors. finally, he pays much attention to the principles of avoiding errors in ideology and practice ^ specially he focus on the principle of avoiding errors from the aspect of institutional and artificial factors
他指出了錯誤發生的社會歷史因素、思想認識上的因素、實踐活動中的因素、體制上、制度上的因素；提出了辨別錯誤的實踐標準、 「三個有利於」標準，辨別政治錯誤的「左」和右的標準；闡明了有錯必糾、堅決改正，自己糾錯，不搞運動，重在教育，對待犯錯誤的人要與人為善、分別對待，強調幫助，不強調懲處、處理要謹慎等治錯、糾錯的原則和方法；強調了思想認識上、實踐活動中的防範錯誤的原則以及主要是防大錯、根本是要從制度上、體制上、從人的因素上防錯的原則和方法，並指明改革、發展是解決一切問題的關鍵。 -
According to this requirement, the railway mobile digital communication system based on the gsm system for mobile communication is put forward in this paper to accomplish the data transfer between the control center and the locomotive. in this paper, the design of the ms ( the mobile station ) and the erected bs ( the base station ) out of the gsm cover is carried out. last we discuss the key techniques of the railway mobile digital communication system, the handoff and the error _ correct coding
本文針對這種要求，在gsm移動通信系統的基礎上提出了建立電力機車移動數字通信網以實現機車與控制中心之間的數據傳輸的方案，設計了系統中車載移動臺、 gsm覆蓋區外自建基站的基本構造，分析了系統中越區切換、糾錯編碼等關鍵技術，並詳細的闡述了其實現方法。 -
Then on the basis of calculating result from the prefigurative deviation control structure calculation, " rational data forecast processing about error adjust in prefigurative deviation control was made by the prefigurative theory of bp neural network and corresponding program and software matlab6. 1. at last via the data comparison with the practical survey data draw a conclusion : it is feasible for the construction prefigurative deviation control and error adjust used in pc rigid frame bridges to use the calculation model and program brought forward in this paper
同時，在對預應力混凝土剛構橋施工過程線形預拱度控制的結構計算分析的基礎上，利用bp神經網路的預測理論和相應的程序及軟體包matlab6 . 1對預拱度控制中的誤差調整進行了較好的預測處理，通過與實際施工數據及成橋后測量結果作分析比較，得到結論：運用本論文的計算模型和程序對預應力混凝土剛構橋預拱度控制過程進武漢理工大學碩士學位論文行結構分析和誤差調整處理是可行。 -
For the measurement of analog signals such as voltage and current of astg, a filter card for pre - disposing is designed, in order to improve real - time performance, algorithms for ac analog sampling is simplified, and a compensation algorithms for phase error due to sequence - sampling is brought forward. for the measurement of impulse - width signals such as rotor - speed and rotor - position - angle, an intelligent interface card based on isa bus is designed. all programs for measure and control based on c + + are compiled and debugged and the flow for system debugging is summarized
為了提高實時性，對交流采樣演算法進行了簡化，並提出了由於非同步順序采樣所造成的相位誤差的補償演算法；針對轉速、轉子位置角等脈沖寬度信號的測量，深入分析了測量原理，設計了基於isa總線的智能介面卡；編制和調試了基於c + +的全部測量控製程序；完成了整個系統的調試，並總結了調試方法。 -
Specific issues examined are : compensation for the variation of the stator resistance, the offset error of the dc bus voltage, the voltage error generated by the forward voltage drop the dead time of the switches, improvement of the steady state performance, and the speed sensorless control for the pmsm dtc drive system are of major concern in this thesis
定子電阻變化，直流母線電壓漂移，開關器件反向相電壓降、逆變器死區時間引起的電壓誤差的補償，提高系統穩態運行性能以及永磁同步電機直接轉矩控制的無速度傳感器運行方案等問題都是本文研究的重點。轉矩的快速響應是直接轉矩控制演算法的一個卓越的性能。 -
In this paper, the upper - class intelligent control scheme is adopted according to the characteristics of tobacco re - dryer and the present control condition in order to solve the problem that the output tobacco moisture can ? keep stable. that is, to keep the old every pid control link, to add the upper - class computer so that sets up the upper - class intelligent control system that consists of the description management sub - system, the fuzzy compensation on line sub - system and the self - learning system. the following are control procedure : first of all, a series of output values of description can be obtained by the forward inference of basic controller on the basis of the information of input tobacco, then, these output values can be adjusted by the fuzzy compensation controller with inquiring the fuzzy control - list on line in the light of the output tobacco moisture error
本文針對烤機的工藝特點和目前控制現狀，提出用上位智能控制的方法解決烤機目前存在的問題，即在保留原有各段pid控制的基礎上，增加上位計算機，建立起由配方管理子系統、模糊在線修正子系統和自學習系統組成的上位計算機監控、決策的智能控制系統；控制過程為：基本配方控制器根據來料信息正向推理提供煙葉復烤機各段參數設定值的基值；模糊補償控制器根據煙葉水分偏差在線查詢模糊控製表提供相應參數設定值的修正值，實現煙葉復烤機參數的在線修正；學習環節的引入實現煙葉配方的在線優化。 -
The research work that is innovative and advanced belongs to project application about software and hardware. for resolving question of realtime status information monitoring and measuring system of lines of communication on launch of aerospace, multi - line level measuring model 、 error - code rate measuring model and line - switch controlling model were designed and carried out basing on requirement of users. a reasonable scheme was brought forward for state of system 、 information processing and long - distance monitor and control
本課題屬軟硬體結合型工程應用項目，解決航天發射中通信線路狀態信息的實時監測問題，在充分研究用戶需求的基礎上，設計並研製了多路電平測量模塊、誤碼率測試模塊、線路控制交換模塊，並就系統工作狀態的建立、各類信息的處理和遠程監控提出了合理的解決方案。 -
Process capability index ( pci ) is also an important method to measure and improve quality, which has play a key role in assuring quality evidence, lowering cost and raising customer satisfaction indexes ( csi ). this paper studies the applications of pci and control chart from the actual viewpoint, and discusses the applications of the probability a, ( 3 of type i, ii error of the control chart, the detecting power and pci based on x control chart. in addition we explore the relationship between qlf and pci, put forward the concepts of relative loss and loss extent, adopt the linear plan to optimize pci and decide the best loss extent of each process. an example is given
）控制圖為例，討論了控制圖的兩類錯誤、檢出力與過程能力指數在實際中的應用；重要的是討論了質量損失與過程能力指數之間的關系，提出了相對質量損失、損失度等概念；研究了多道工序相對質量損失、損失度對總質量損失的影響，並從質量損失的角度出發，採用線性規劃的方法，優化多工序的過程能力指數，確定各道工序的最佳損失度，實證討論了這種關系，同時可以利用這種關系對供應商進行評價，給出了從全局的、動態的角度選擇供應商的方法，為上下游企業間的配合、監督及共同進步提供了理論基礎和實現途徑。 -
In this paper, on basis of the current machining state, a testing principle on aspheric surface is put forward to, the principle is a kind of touching method by testing the meridian of aspheric surface and comparing it with the theoretical curve, so surface figure error is got. according to this principle, mechanical structure is designed and electric - control system is researched
本文首先基於現階段非球面的加工狀況，提出了用接觸式檢測非球面的子午面面形曲線並與理論曲線相比較，從而得到非球面面形誤差的檢測原理，並根據該原理進行了機械結構的總體設計和電控系統的研究。 -
Secondly, binary probability hypothesis detection is studied and is utilized as actuators " fdi residual decision. thirdly, multi - layer feed - forward ann and error backward propagation ( bp ) algorithm are studied and are utilized as control surfaces " failure detection and sortation
第三，研究多層前饋神經網路及相應的bp （ errorbackwardpropagation誤差反向傳播）演算法，設計基於模型殘差的故障分類器，並通過其來完成全局舵面的故障檢測與分類。 -
In plane trajectory tracking control, put forward optimal preview control method of plane trajectory tracing based on trajectory error area. the method has very good performance in plane trajectory tracking control
在平面軌跡跟蹤控制中，提出了基於面積誤差評價的平面軌跡最優預見跟蹤控制方法，它對解決平面目標軌跡跟蹤運動性能起到了良好的作用。 -
The dissertation expatiates on the concept framework and architecture of content - based error control methodology, puts forward a content description model, and proposes error control methodologies corresponded to content features of different levels. moreover, experiments are carried out for validity check and effect evaluation
論文闡述了基於內容的差錯控制方法的體系結構，提出內容描述模型，針對不同層次的內容特徵，提出了相應的差錯控制方法，並進行了實驗測試分析和效果評價。 -
Feed - forward control strategy of voltage error on dc - link capacitors in current - mode control half - bridge inverter
電流型控制半橋逆變器直流分壓電容電壓偏差前饋控制技術 -
It has put forward a kind of method of self - adaptation based on motion characteristic to correcting error code. finally, based on the rtp protocol, real - time transmission of video and audio data is realized with software, and a bandwidth control algorithm based on rtp is introduced. the research results of this paper can be used in the long - distance education, video conference, videophone, video real - time control, and various kinds of communication systems
接著討論了糾錯編碼，採用rs編碼作為前向糾錯碼，提出了一種基於運動特徵的自適應誤碼掩蓋方法，並採用rtp協議進行視音頻數據的實時傳輸及帶寬控制，本文的研究成果可以直接用於遠程教育、視頻會議、可視電話、視頻監控等各種通信系統，具有較大的研究價值及廣泛的實用價值。 -
This paper puts forward solutions which aim at several kernel technologies of this system project : ( 1 ) in order to complete the communication between, the parallel correspondence circuit suit for this system is built on the base of the smc source. ( 2 ) the theory about data correspondence, for example communication protocols data chain data exchange and error control, is used in this system. ( 3 ) the error control technology is discussed in the aspects of hardware and software : the odd and even correction of 51 smc serial communication and a fast crc suit for smc
本文針對現有系統方案幾個核心技術，提出了以下解決方法： （ 1 ）為完成主從cpu之間的通信，在現有單片機資源基礎上搭建適合本系統的並口通信電路。 （ 2 ）將數據通信的理論如通信協議、數據鏈路、數據交換及差錯控制等運用於該系統中。 （ 3 ）從硬體和軟體兩個方面探討了差錯控制技術： 51單片機串列通信中軟硬體結合奇偶校驗；其次採用了一種適合單片機的快速crc校驗技術。 -
Forward error control fe
前向差錯控制 -
Furthermore, because the three grades decelerate control method, which is used widely, in stack crane control in china has some shortcoming, two rbf neuron network applied in position error study and dot position control is put forward. because neuron network is of self - study, emendation and modification can be achieved in control and can remedy the shortcoming caused by shortage of sample
另外，本文還針對目前國內在對堆垛機控制方面普遍採用的三段式減速控制規律的弊病，提出用兩個rbf神經網路分別作為位置誤差學習器和點位位置控制器，由於神經網路的自學習功能，可以使得在控制當中不斷校正和修改在訓練時由於樣本不足造成的缺憾。
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