無噪聲系統 的英文怎麼說

中文拼音 [wúzàoshēngxìtǒng]
無噪聲系統 英文
noiseless system
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 系統 : 1. （按一定關系組成的同類事物） system 2. （有條理的;有系統的） systematic
  1. In the noise simulation sysnoise is applied to get estimable simulation results of aircraft noise close to ground

    設計了一種可用於機場無人監測的專用無線噪聲測試系統。
  2. As a combination of ofdm with space - time coding technique, mimo - ofdm becomes more and more important in the future wireless communication systems, the mimo - ofdm system can not only effectively enhance the transmission rate and capacity of the wireless communication system but also greatly mitigate the effections of mufti - path fading and interfere

    Mimo - ofdm技術將ofdm與空時編碼技術有機的結合在一起，能夠大幅度的提高無線通信系統的通道容量和傳輸效率，並能有效的抵抗多徑衰落、抑制干擾和噪聲。
  3. Convolutional coding is a coding scheme often employed in deep space communications and recently in digital wireless communications. it offers an alternative to block codes for transmission over a noisy channel

    卷積碼被運用於衛星通信和無線通信系統中，它提供了一種不同於分組碼的在噪聲通道下傳輸信息的一種編碼方案。
  4. 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。
  5. Soc can improve the system performance greatly and solve various problems which may occur in a pcb system such as noise, speed limit, etc. while soc brings more facilities to users, more chanllenges are presented to the designers

    Soc可以大幅度提升系統的整體性能，並較好的解決板極系統的噪聲干擾和由連線延時所帶來的速度問題，有著板級系統無法比擬的優勢。
  6. Frequency response, quantization noise, reconstruction error and its sensitivity to mismatch among adcs are studied at length in prqmf banks adc system, and the theoretic results include : ( 1 ) the distortion / aliasing functions of hybrid filter banks adc system is similar with that of switch capacitor filter banks adc system ; ( 2 ) for wide or narrow band input signal, the effective resolution of the two adc systems is 0. 51og2m bits higher than their adc ; ( 3 ) reconstruction error ' s sensitivity to mismatch among adcs of the two adc systems is reduced effectively than time interleaved adc system

    2對prqmf濾波器組adc系統的頻響、量化噪聲特性、重建誤差特性以及重建誤差對adc間的失配敏感性進行了理論分析研究，所得到的理論結果為： （ 1 ）混合濾波器組adc系統與開關電容濾波器組adc系統的失真/混迭函數一致； （ 2 ）無論輸入寬帶還是窄帶信號，這兩種adc系統的有效解析度均比其adc提高了0 . 5log _ 2m比特； （ 3 ）這兩種adc系統的重建誤差對其adc間的失配敏感性均明顯低於時間交織adc系統。
  7. In the hardware implementation of a multi - channel active noise control system, the computational complexity is increased sharply when the number of filter coefficients and channels are increased

    摘要在多通道有源噪聲控制系統的硬體實現中，當通道數目增大或濾波器長度較長時，常規的多通道演算法運算量急劇增加，使控制器可能無法實時實現。
  8. So, both 1 / f noise power spectrum measurement and similarity coefficient extracted from its time series can offer economical, effective and indestructible tool to detect the latent damage induced by esd and hci for mosfets

    因此，無論是1 / f噪聲功率譜的測試還是由其時間序列提取得到的相似系數均可以作為經濟、有效、完全非破壞性的工具，替代傳統的電特性用於檢測靜電引起的mos器件潛在損傷以及熱載流子注入損傷。
  9. In the system, the low voltage power line is the first signal tunnel without any other relay equipments between customer terminal and substation collector, public telephone line serves as the second signal tunnel between substation and management center computer. as a breakthrough of conventional concept of electricity meter, this thesis initiate a new concept, namely, intelligent power customer terminal ( shortly, customer terminal ), which is developed with spread spectrum plc communication functional and possesses many advanced functions, such as, in addition to electric energy acquisition, guarding against electricity pilfering, preventing wrong connection, protecting malfunction, remote communication ( for example, remote power supply or halt, remote configuration of electricity meter, remote load control, etc ), and so on

    本文首先系統地總結了目前國內外低壓電力網數據傳輸技術的研究現狀和存在的問題，在此基礎上，從理論上論證了在低壓電網上應用擴頻載波數據通信技術的可行性和優越性，並重點論述了擴頻載波技術抗電力線噪聲干擾的機埋；本文提出了一個新穎的基於低壓電力線擴頻載波通信技術的集中遠抄系統的總體方案，即由用戶終端、集中器和電能管理系統所組成的網路系統，其中，用戶終端到配變集中器用低壓電力線作為通道，中間無需其他硬體中繼設備，集中器到電能管理系統用公用電話網作為通道。
  10. The winding - pipe machine principal - axis magnetism supporting system is a novel magnet mechanism device. it has many advantages including no mechanism abrasion, no pollution, high efficiency, wide application, noise free, long cycle life, and so on

    管絞機磁性支承系統是一種新型磁力機械設備，具有無機械磨損、無污染、高效率、適用廣、無噪聲、長壽命等優點，有著廣闊的應用前景。
  11. With the advantages of high gain and output power, low noise, wide bandwidth as well as no relation with polarization, edfa changes the traditional optical - electrical - optical relay mode step by step in many fields, and becomes an indispensable device in modern optical communication systems. it saves the expensive cost in optical - electrical transition, makes equipment easy to operate and maintain

    由於其本身具有高增益、高輸出功率、低噪聲、帶寬寬、與偏振無關等優點，在很多領域和場合， edfa正逐步取代傳統的光-電-光中繼模式，省去光電/電光轉換的昂貴成本，便於設備的運行維護，成為現代光纖通信系統中不可缺少的關鍵部件。
  12. Human ocular apperceive is truly a robust character recognition system which can adapt to all kinds of noise

    人類視覺感知毫無疑問是一個魯棒性很強的、能抵禦實際中可能遇到的各種變形和各種干擾噪聲的文字識別系統。
  13. The radio surveillance digital system can identify the modulation format and parameters by data acquisition and signal processing in the complicated signal environments with noise

    無線電監測調制識別系統能夠在復雜環境和噪聲干擾情況下對信號採集和處理確定信號各種參數，解調信號，從中獲取信息。
  14. We also select the microchip pic16f877 made by microchip co. ltd as a control chip to realize micro - computer control. this system use three separate channel to find out the " across the zero point " of each back - emf. the program use digital filter to wipe off the pwm interferences and the commutating interferences

    系統中採用三個獨立通道分別檢測無刷電機三相繞組的反電勢的各自過零點，同時在軟體中採用數字濾波以消除其它噪聲干擾，使檢測電路檢測到的反電勢過零點更加準確可靠，實現了對五位置傳感器直流無刷電機的數字控制。
  15. In this paper, the intelligent non - central - switching explosion - proof amplifying call and telephone talk system which is suitable for the inflammable and explosive, large - scaled and strong - noised working space is developed by recurring to the techniques of the computer, the electronics and the communication

    本文採用計算機技術、電子技術和通信技術研製了適合於易燃、易爆、大范圍、強噪聲的生產場所使用的智能型無主機防爆擴音對講電話系統。
  16. Based on the intelligent non - central - switching amplifying call and telephone talk system, the ky - 2 - type non - central - switching factory communication telephone system is developed in this paper. the system is suitable for the large - scaled and strong - noised working space, is developed by using the techniques of the computer, the electronics and the communication

    本文在原有智能型無主機擴音對講電話系統的基礎上，研製了符合大范圍、強噪聲的生產場所通信要求的ky - 2型無主機工廠通信系統。
  17. In the absence of signals, there is a transition phenomenon hi the firing rate which is only occurred under condition of the coupling between each neuron units, and there are two regions in the transition diagram of noise intensity and coupling strength plane : one is the non - sensitive to both noise intensity and coupling strength region, the other is the sensitive one

    發現了由於耦合的存在，增大噪聲強度會導致相變。同時進一步研究了在無信號輸人的情況下，神經系統的激發率隨噪聲強度和耦合強度的變化，發現了在一定的噪聲強度的作用下，神經系統的激發率到達一個峰值，即存在「同步共振」的現象。
  18. To solve the problems of that real aanc systems ca n ' t get the good reference signals in some situation and the acoustic feedback problems. in this m. s. thesis, adaptive feedback is explored theatrically and experimentally

    為解決實際有源噪聲控制系統常常無法獲得參考信號，以及次級聲反饋的問題，有源反饋控制系統研究是非常急需和重要的。
  19. Methods of measurement for radio equipment used in satellite earth - stations ; measurement for sub - systems ; low - noise amplifier ; identical with iec 60510 - 2 - 3 : 1989

    衛星地面站無線電設備的測量方法.分系統測量.低噪聲
  20. Methods of measurement for radio equipment used in satellite earth stations ; part 2 : measurements for sub - systems ; section three : low - noise amplifier

    衛星地面站用無線電設備的測量方法.第2部分:分系統的測量.第3節:低噪聲放大器
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