front-end processing 中文意思是什麼

front-end processing 解釋
前端處理
  • front : n 1 前部，前面；正面；（劇場的）正面[前面]座位〈也可指全部觀眾席位〉 （opp back rear）。2 【軍事...
  • end : n 1 端，尖，末端，終點。2 邊緣；極點，極限。3 結局，結果。4 目的。5 最後，死。6 【紡織；印染】經...
  1. The current radar scout system has some problems for processing multiform signals, confronting the complex electromagnetic environment and various radar characteristic signals. the adaptive front - end in receiver can solve these problems, and this dissertation analyzes it

    面對日趨復雜的電磁環境以及變化繁多的雷達特徵信號，現有的雷達偵察接收系統對多種信息的處理顯得力不從心，本文從接收機前端考慮，對其中的一種解決方法? ?自適應的接收機前端進行分析、研究。
  2. The bt819a of brooktree corp is selected for front - end video a / d transforming, bt852 as video d / a, and the tms320c6711 of ti corp. selected for h. 263 core algorithm processing in the system hardware design

    該系統硬體設計選擇了conexant公司的bt819a晶元為前端視頻採集a d晶元， bt852晶元作為後端視頻的輸出d a晶元，完成對視頻信號數字化和逆處理，為dsp對系統功能處理作好準備。
  3. Speech enhancement as the front - end processing module is used to improve the signal - to - noise ratio ( snr ) of the input signal for recognition in the latter stages

    為了讓語音識別系統在安靜的環境和有噪聲的環境中都獲得令人滿意的工作性能，研究了一個將語音增強器和語音識別器級連起來的系統。
  4. Then this spectral subtraction method is applied to noise speech recognition system as the front - end processing. noise speech signal are processed to improve its snr before recognition. so the recognition rate can be improved in noise environments

    並將改進譜減演算法作為噪聲下語音識別系統的前端處理過程，即通過對含噪的語音進行語音增強以提高信號的信噪比，從而提高語音識別系統的抗噪聲性能。
  5. In this paper, for 2 ~ 2000mhz broadband rf front - end, using subsection processing fixed intermediate frequency superheterodyne architecture, and combining with the actual component ’ s level, a broadband rf front - end system simulation platform is presented, which provided the universal, standardization, and modularization of transmitter and receiver

    本文針對頻率范圍2 2000mhz的寬帶射頻前端，採用分段處理的固定中頻超外差結構，並結合目前的器件水平，建立了一個通用化、標準化、模塊化的寬頻帶射頻前端發射機和接收機系統模擬平臺。
  6. Government electronic trading services are the front - end services capturing data from traders, verifying such data, submitting the data to government back - end systems for processing, collecting fees where applicable on behalf of government, and forwarding related messages between government and traders concerned ; and the provision of end - user software and related training to traders

    政府電子貿易服務包括以下前端服務：收集貿易商提供的資料、核對有關資料、呈交資料予政府後端系統作進一步處理、代表政府徵收費用（如有需要） ，和為政府及貿易商傳遞相關訊息；以及為貿易商提供用戶軟體及培訓。
  7. Lpc prediction error ; one - side autocorrelation sequence lpc ; acoustic front end processing ; canonical correlation based on compensation ; combination of features

    線性預測誤差單邊自相關線性預測語音前端聲學處理正則相關分析的譜變換補償特徵綜合
  8. The adaptive front - end has the adaptive ability for the magnitude and frequency of input signals. it can prefilter for the input signals, eliminate the useless signals, and improve the dynamic range of receiver system. it can lessen the burden of digital signal processing in the back - end of receiver, and improve the performance of receiver system

    自適應接收機前端對輸入信號有自適應能力? ?頻率自適應和幅度自適應，這樣的前端就可將系統的接收中心頻率和帶寬自適應到輸入信號的頻率和帶寬，其實就是對輸入信號進行一次預分選、預濾波，剔除對接收系統毫無作用的信號;同時對大信號自動減小增益，對小信號增加增益，提高系統的動態范圍;而且可以對干擾信號進行壓制。
  9. Durning study of the subject, realizating comprehensive rf front - end simulator and starfabric data - distributed interface module in hardware. moreover, it elaborates the achievement of a system of data - distributed based on starfabric technology, by designing hardware modules, multi - entrance high - speed switch module, signal processing module and pc terminal

    在課題研究期間，在硬體上完成了高速數據分發系統中的綜合射頻前端模擬器和starfbric數據分發介面板設計及實現，並用所設計的硬體模塊，加上多埠高速交換模塊、信號處理模塊和pc終端實現了一個基於starfabric技術的高速數據分發系統。
  10. There are difficulties in noisy speech recognition, especially low signal - to - noise rations are more difficult. this paper describes briefly six methods for speaker - dependent noisy speech recognition isolated words. they are lpc prediction error method, one - side auto - correlation sequence lpc, acoustic front end processing, canonical correlation based on compensation method, combination of features method and increase of poles method. the experimental results show that all the six techniques can improve effectively noisy speech recognition, and the best noisy speech recognition rate is above 80 % when snr 0db

    它們是：線性預測誤差法，單邊自相關線性預測法，語音前端聲學處理法，正則相關分析的譜變換補償方法，特徵綜合法和同模極點增加法。實驗結果表明，這6種方法都有效地提高了噪聲環境中語音識別率，其中較好的方法在強噪聲環境中信噪比為0db的語音識別率達到80 %以上，為信噪比較低的噪聲環境中自動語音識別展現了美好前景。
  11. This paper introduces the conception of dual module stb, analyzes the front end physical layer, and depicts the main blocks in terms of the configuration of front end physical layer, data processing of upstream and downstream in - band and out - of - band signals, and technology and method for the implementation of the modem

    摘要介紹了雙模機頂盒的概念，重點分析其前端物理層的實現，主要從前端物理層結構、上下行帶內帶外信號在物理層的數據處理和調制解調過程的實現技術和方法等予以描述。
  12. The hardware achitecture of home integrated services terminal is mainly composed of the following five parts : dvb - based front - end interactive module, video and audio data processing module, output presentation module, peripheral equipment data interface module, memory management module

    其硬體結構大體可分為dvb前端交互模塊、音視頻數據處理模塊、輸出呈現模塊、外圍設備數據介面模塊和存儲器管理模塊這五個主要單元。
  13. And the performance of these algorithms is compared with each other. to simplify the sampling rate design and digital processing in receiver, we prefer to use the direct down conversion structure. the problem is the analog front - end in this structure will bring iq mismatch, which will effect the phase of recovered carrier and code

    第三部分對接收機中的載噪比估計演算法進行了分析，目前gps導航接收機中採用的載噪比估計演算法對殘余多普勒非常敏感，而且gps中的數據速率為50bps ，北斗二代中的存在數據速率為500bps ，應用條件的差異導致該演算法的不可用。
  14. Data rate conversion technology for signal is one of the key technologies of wideband digital reconnoitering receiver. it is the feasible scheme to resolve the rate gap between the front end data flow of high speed analog digital converter ( adc ) sampling and the back end digital signal processor ( dsp ) processing

    雙信號數據率轉換技術是寬帶數字偵察接收機關鍵技術之一，是解決寬帶數字接收機中前端高速adc采樣的高速數據流與後端dsp處理速度之間瓶頸問題的可行方案。
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