noise in communication 中文意思是什麼

noise in communication 解釋
溝通中的噪聲
  • 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〉...
  • in : adv 1 朝里，向內，在內。 A coat with a furry side in有皮裡子的外衣。 Come in please 請進來。 The ...
  • communication : n. 1. 通訊，通知；交換；信息；書信，口信，通報。2. 傳達，傳授；傳播；傳染。3. 交通，交通機關；聯系，連絡（設備）。4. 【宗教】接受聖餐。
  1. The columns and rows are constrained by each other. the simulations over binary symmetric channe ( lbsc ) and gilbert - elliott channel ( gec ) shows the performance is great improved, especially over burst error channel peak signal to noise ratio ( psnr ) is improved more. it is tried to be used in wireless communication system

    模擬結果表明，採用行列交替約束的約束維特比譯碼以後，性能得到較大的提升，尤其在突發錯誤通道中，傳輸的圖像經乘積編碼進行通道編碼與譯碼后峰值信噪比有明顯的提高。
  2. Low noise amplifier ( lna ) is widely used in front end of a received set of mobile communication 、 wireless radio 、 blueteech technology and so on 。 the active device is the core of the circuit and has significant effects on the whole equipment, therefore, the design of the active device is vital in lna

    微波低噪聲放大器（ lna ）廣泛應用於移動通訊、無線電、藍牙技術等的rf前端。 lna中的有源器件是整個電路的核心，對整個放大器電路的性能有著重要的影響，因此有源器件的設計是lna的關鍵技術之一。
  3. The nonlinear filtering for nbi estimate - subtract assumes that the prediction error is dominated by spread spectrum signal and the background noise power is far below spread spectrum chip power, this assumption promises the low error ratio of chip decision but may not be attainable to digitalized dsss receiver in military communication environment, and does not coincide with the principle of dsss communication that decreases bit error ratio ( ber ) depending on spread spectrum gain, not on chip power

    在干擾估計抵消濾波中，以往的非線性濾波要求干擾抵消濾波后擴頻信號功率遠大於殘余噪聲功率，進而假設碼片判決的誤碼片率基本為零，這一要求對軍用擴頻通信是不利的，而且也不符合擴頻通信利用擴頻增益降低誤碼率的原則。
  4. ( 4 ) a high - speed communication module for ert was introduced in this system. the advantages of this communication module are rs422 / rs232 compatibility, high band rate of 921. 6kbps, noise - immunity and low cost. the module was successfully used in electrical resistance tomography

    目前國內有文章報導的最高數據採集速度為50幅/秒（ 3 ）引入了一個適用於電阻層析成像系統的通用高速通訊模塊，該模塊支持rs422和rs232雙協議，最高波特率達到921 . 6kbps ，具有通訊波特率高、抗干擾性能好以及成本低廉等優點。
  5. According to the project of adaptive multi - rate speech coding ( amr ) being put forward by the third generation group of the mobile communication, this paper takes the principle of the speech arithmetic as the base, studies the technologies including the source controlled rate, voice activity detector, comfort noise and the error concealment unit in amr, discusses its the characteristic of adaptation and analyses its performances particularly. amr c codes are researched carefully through the modules being divided into and debugged under the tms320c54x provided by the ti corporation, and optimized in selecting the method of c code embedded assembler codes and simplified in the search codebook combining with the theory of speech coding, which are based on the realization about theory and practice of the optimization of amr speech coding

    從自適應多碼率語音編碼演算法的c代碼出發，對它進行模塊劃分後作了系統分析，將其在vc下調試通過，進一步在ti公司提供的tms320c54x環境中進行調試，結合語音編碼理論，對演算法進行優化，採用了在c代碼中嵌入匯編和簡化自適應碼本和固定碼本搜索的方法，部分地提高了c代碼效率，為實現自適應多碼率語音編碼的優化奠定了理論和實踐基礎。
  6. Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section

    在第三章介紹無線光接入系統的光收發單元，採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用，針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術，同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標，最後給出了一個整個傳送鏈路的功率預算。
  7. At secondly, for depressing the noise in ir images, we make a deep research in median filter and it ' s algorithm architecture, then we present a improved method based on the control bit look ahead structure and implement it in fpga. at last, we resolved the data communication problem in the multiprocessor ir image processing system and and complete the system debug

    然後，針對校正後圖像中噪聲干擾的問題，深入研究了中值濾波的特性和演算法結構，提出了具有超前控制位的max - min中值濾波器的改進結構，在現場可編程門陣列fpga上設計實現了該中值濾波器，並進行了驗證。
  8. Do a estimation is often encountered in vary application of radar and communication system. the dissertation then discusses the estimation of interested signals in chaotic noise. we analyzed three different algorithm for this purpose

    混沌背景中的有用信號的參數估計問題是在雷達應用（如波達方向估計）和混沌調制的通信系統中窄帶干涉抵消中經常遇到的重要問題之一。
  9. The new algorithms for classification of mpsk, mask and mqam signals using cumulant invariants are proposed in gaussian noise and ideal communication channel environment. the new classification features are blind to unknown snr and reference phase

    提出了在高斯噪聲和理想通道環境下，基於高階累量不變量特徵的mpsk 、 mask和mqam信號調制分類演算法，新特徵對信噪比和未知的參考相位參數是盲的。
  10. For speech communication, noise and interference will make listener fatigued and affect intelligibility and articulation of speech. as a result, it is necessary to design corresponding device to reduce noise in wireless speech communication. this thesis focus on the basic theory of speech processing, the key technologies to reduce noise in speech and the design and implementation of corresponding noise reduce devices

    由於無線語音在傳輸過程中不可避免地會受到風、雨、雷、電的干擾;還有來自周圍環境的干擾及通信設備內部電噪聲等的干擾，使得原始的純凈語音成為被噪聲污染的帶噪語音，從而對無線語音通信的質量產生嚴重影響。
  11. 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。
  12. A system scheme of digital image collection plus spread spectrum communication ( abbreviated as ssc ) is presented in this paper after a full analysis of noise characteristics, attenuating characteristics and impedance characteristics of low - voltage power lines

    本文首先介紹了低壓電力線的噪聲特性、衰減特性和阻抗特性，然後提出一種數字圖像採集+擴頻傳輸的系統總體方案。
  13. The fiber raman amplifiers ( fras ) are more and more attractive for its particular virtues such as on - line, wide band, and low noise etc, and they are very fit for dense wavelength division multiplexing ( dwdm ) system of next generation charactered by its super large capacity and long transmission distance. fras are unsubstitutable in the fields such as optical fiber communication over the ocean, long haul transmission and exploitation of the entire low - loss band of fiber

    光纖拉曼放大器因其特有的在線、寬帶、低噪聲等特點而越來越被人們關注，是一種非常適合下一代超大容量、超長距離dwdm系統的光放大器，尤其是在海底跨樣光纖通信、超長距離光纖通信以及開發整個光纖低損耗窗口等方面有著不可替代的優勢。
  14. New methods of communication in the presence of severe noise

    在強噪聲中進行通信的新方法
  15. Based on those studies, a prototype of noise in speech reducing device for wireless communication is designed and implemented, with its effects evaluated

    因此，研究無線語音降噪技術與語音增強演算法、研製無線語音降噪設備對于提高無線語音通信質量有著重要意義。
  16. Chapter 5. ( the application of 1 / f noise in other fields ) in this chapter the application of 1 / f noise in communication as a modulation signal is firstly introduced, then the application in music synthesis and its prospective applications

    第五章（ 1 f信號在其他領域中的應用）介紹了1 f信號作為一種調制信號在通信中的應用，作為一種控制信號在音樂合成中的應用。
  17. In chapter five, there are many procedures associated with flow diagrams or codes, they make the system use easily and effectively. the implement of the user ' s interfaces, data interfaces and algorithms are expressed here, especially the designing of dealing with anti - noise and communication protocol

    第五章給出了本系統的軟體部分結合程序流程框圖和代碼，對人機界面和交互介面的實現，數據處理演算法的實現等作出了詳細的剖析。
  18. The theory model and experiment research about optical polarization noise in the coherent fiber communication system

    相干光通信系統偏振噪聲的理論模型和實驗研究
  19. Simulation results demonstrate theoretical derivation is correct and both sequences can be used in communication. based on the presented ds / sfh communication scheme, and employing msk as fh spread spectrum modulation, the performance is studied n the presence of partial band multitone jamming and additive white gaussian noise ( awgn )

    根據所提出的混合ds sfh擴頻通信系統方案，採用msk相干調制，在假設直接序列擴頻后信號帶寬等於跳頻間隔的情況下，推導了系統在部分頻帶多頻干擾和加性白噪聲下的誤比特率公式。
  20. Noise in communication system

    傳播系統中的噪音
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