noise transmitter 中文意思是什麼

noise transmitter 解釋
噪聲發送器
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  • transmitter : n 傳送者；傳達者；寄交者；傳導物；遺傳者；【無線電】發送機；發射機；發報機；送話機，話筒；【火箭...
  1. The major job is manufactured a transmitter, which has three upmixer channels. its function is to up convert the signals from c - band to ka - band. the input local oscillator is provided by a low frequency crystal oscillator which has a good performance of phase noise, through 512 times multiply to ka band. this sysetem is used in the laboratory as transmitter source of the fuze, for the multidimensional objects in practise, which lead to the complexity of the reflect signal, so the amplitude, frequency and the phase of the transmit signals both have a key role in dealing with the reflection signals. therefore, this system requires for both the coherence of the single channel ’ s amplitude, phase and multi channels

    本文的主要工作是應用戶要求製作一具有三發射通道的上變頻系統，可以將c波段的微波信號上變頻到ka波段的毫米波信號。系統的本振輸入基頻由一相位噪聲非常好的低頻率晶振提供，經過512次的倍頻放大至ka波段。本系統作為實驗室中引信的發射源，由於目標反射信號具有時變的多維性，反射信號變得極為復雜，在信號處理時，不僅信號幅值、頻率有決定意義而且相位關系也很有決定意義。
  2. Detail specification of noise - cancelling transmitter for odk - 1

    Odk - 1型抗噪聲送話器詳細規范
  3. In the spread spectrum communication system, the synchronization of receiver ' s persedo - noise ( pn ) code to the transmitter ' s pn code is such an important part that the whole system ca n ' t work at all without it

    在整個擴頻系統中，接收端對發端擴頻碼的捕獲和同步，是一項決定整個系統成敗的至關重要的技術。
  4. General specification for active ant - noise transmitter and receiver

    有源抗噪聲送受話器組通用規范
  5. An analysis of quantization noise in fm transmitter at intermediate offset frequencies

    對調頻發射機在中頻偏移下的量化噪聲分析
  6. And the supply scheduling design protects the mmic chips. the final measurement result shows the transmitter power reaches more than 500mw, noise figure is less than 6db, the receive gain is higher than 25db, the isolation is more than 40db

    實驗結果顯示發射通路輸出功率> 500mw 、噪聲系數< 6db 、接收通路增益> 25db 、和差發射通路的隔離度> 40db ，收發隔離度> 40db ，基本達到指標要求。
  7. Spurious transmitter noise

    發射機雜散躁聲
  8. The approach in this thesis first design the best performance channel code in different channels and different snr, then design the adaptive coder / decoder. the receiver continually estimates the fading and noise of the channel and transmits them to the transmitter by reverse channel. then the transmitter use these information to choose the best channel code adaptive the current channel

    本文提出的自適應調制方案首先設計各種通道衰落和信噪比條件下的最優通道編碼，再設計一種能夠完成這些通道編碼解碼的自適應編碼解碼器；接收機不斷估計通道的衰落程度和噪聲功率，並通過反向通道反饋給發射機；發射機據此選用最適合當前通道的通道編碼，實現自適應。
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