鑒別信號 的英文怎麼說

中文拼音 [jiànbiéxìnháo]
鑒別信號 英文
distinctive signal
  • 鑒 : Ⅰ名詞1 （鏡子 古代用銅製成） ancient bronze mirror2 （可以作為警戒或引為教訓的事） warning; objec...
  • 別 : 別動詞[方言] （改變） change （sb. 's opinion）
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  1. Maybe he can't screen out bottom return.

    說不定他無法鑒別水底的反射信號。
  2. In the experimental system apd transferred laser pulse to weak electrical current. after two - level amplification we got a voltage pulse that had a enough amplitude to be applied, the timing point was discriminated by the constant - fraction timing discriminator circuit. timing circuits transferred the pulse flight time to digital signal accurately

    實驗系統採用apd作為光電傳感器，將激光脈沖信號轉變為微弱電流脈沖，經過兩級放大后，信號變為幅度較大的電壓脈沖，經過時點鑒別電路分別確定計時起點和終點后，由計時電路來精確測量兩個時間點之間的時間間隔。
  3. The potential applications of amr include both civil and military communication, especially non - cooperative communications and communication confrontation, such as identifying signals, supervising signals, distinguishing interference, electronic confrontation, analyzing military threat, etc. on the basis of our analysis to the existing research on feature abstraction, the related feature abstraction methods are optimized in this paper, resulting several effective methods such as the feature abstraction based on transformation domain, stepped voltage level analysis, normalized carrier - free spectral energy analysis, squared signal and fourth powered signal analysis, etc. both the decision theory based on recognition algorithms and the artificial neural network ( ann ) based on recognition algorithms is analyzed, and the former is selected as it is more appropriate for this research

    調制類型的自動識別廣泛應用於民用通信與軍用通信，尤其是對于非合作性通信、通信對抗，比如：信號確認、信號監控、干擾辨識、電子對抗、軟體無線電、電子救援、通信對抗、軍事威脅分析等。本論文在分析現有研究的基礎上，借鑒了已有的特徵提取方法，對相關調制類型特徵提取方法進行了優化，使用了一些有效的方法，如基於變換域特徵提取方法、梯層電平分析方法、剔除載波后的歸一化頻域能量分析方法、信號平方后的頻譜分析方法、信號四次方后的頻譜分析方法等。通過對基於決策理論和基於人工神經網路兩種識別演算法進行分析，本論文選擇了較適合的基於決策理論的識別演算法。
  4. The advent of the internet and the wide availability ofcomputers, scanners and printers make digital data acquisition, exchange and transmission a simple task. however, making digital data accessible to others through networks also creates opportunities for malicious parties to make salable copies of copyrighted content without permission of the content owner. digital watermarking is likely to be a potential solution to this problem. digital watermarking has been proposed as a solution to the problem of copyright protection of multimedia documents in networked environments. it makes possible to embed a watermark ( such as identification data, serials number, text or image etc. ) to multimedia documents allowing copyright protection, secret communication, document authentication and so on. in this paper, we present a new digital image watermarking method based on svd ( singular value decomposition ), and then give some theoretical analysis about the algorithm. extensive experimental results show that this method is much more robust than other methods presented before

    隨著計算機和網路技術的飛速發展，數字圖像、音頻和視頻產品愈來愈需要一種有效的版權保護方法，另外通信系統在網路環境下的信息安全問題也日益顯露出來.數字圖像水印技術為上述問題提供了一個潛在的解決方案.所謂水印技術就是將數字、序列號、文字、圖像標志等版權信息嵌入到多媒體數據中，以起到版權保護、秘密通信、數據文件的真偽鑒別和產品標志等作用.本文提出了一種新的基於奇異值分解的數字水印演算法並且對該方法的理論基礎給出分析.實驗結果表明這種方法要比目前提出的流行演算法魯棒
  5. Refer to the impacting - echo technology, we impacted the apex of the steel bar and incepted the reflecting stress ave through the resonator that fixed on the apex of the steel bar, and the value of the consolidating wave speed was calculated based on the time of stress wave transmitted and the length of the steel bar, so, identifying the reflecting signal is the key of the consolidating wave speed method

    借鑒于沖擊回波技術，固結波速的測定方法是在鋼筋測桿的出露端施加瞬態沖擊載荷，由安設在測桿頂端的傳感器接收反射應力波信號，根據應力波的走時和測桿的長度折算固結波速的大小，因此反射信號的識別是固結波速法檢測混凝土強度的技術關鍵。
  6. Digital watermarking is the technology which embeds copyright information including product id, text content or image logo into multimedia for copyright protection, secret communication and discrimination of the data files

    所謂數字水印技術就是將數字信息如產品序列號、文本內容、圖像標志等版權信息嵌入到多媒體數據中，以起到版權保護、秘密通信、數據文件的真偽鑒別等作用。
  7. Digital watermarks may be all kinds of information which can be embedded into multimedia data, just as digits, serial numbers, text, image symbols, so it can be used in copyright protection, marker production, covert communication, data ownership confirmation, data authentication

    數字水印是指嵌入到多媒體數據中的信息，可以是數字、序列號、文字、圖像標志等各類信息，以起到版權保護、標志產品、秘密通信、證實數據歸屬權、鑒別數據真偽等作用。
  8. A device that converts a property of an input signal, such as frequency or phase, into an amplitude variation, depending on how the signal differs from a standard or reference signal

    鑒別器，鑒頻器一種將輸入信號的某一特徵，如頻率或相位轉變為幅度變化裝置，其變化大小因信號與標準或參考信號的不同程度而異
  9. In this paper, they are set forth at first that the kinds of computer - simulation of electronic devices, the development and the requirements of mosfet ' s model and the way of gain the models " parameters, the dc models have been bui it in chapter 2 and the models of big signals have been deduced in chapter 3, they are different from the equivalent circuit models in the traditional software pspice that they come from the numer i ca i - s i mu i at i on wh i ch is based on the essence equat i on, so the precision of simulation is enhanced ? mosfet ' s small signal models of low frequency, intermediate frequency and high frequency have been built in chapter 4 and chapter 5, although the equivalent circuit models in pspice are used for reference to bui id them, they have their own characteristics which are analyzed at a i i kinds of situations, so that the simulation software for mosfet can be written according them and it i s a i so benef i c i a i for us to catch the gen i us character i st i cs of mosfet and to d esign all kinds of applicable devices the correctness of the models is simply proved in chapter 6

    本文首先介紹了電子器件計算機模擬的分類、 mosfet的建模發展動態、對器件模型的要求以及模型參數的提取方法。在第二章中建立了mos晶體管在直流端電壓條件下的工作模型；第三章推導了mosfet的大信號模型，這兩類模型不同於傳統模擬軟體例如pspice中的等效電路模型，而是從模型方程出發，採用數值模擬的方法，提高了模擬的精度。第四章和第五章分別建立了mos晶體管低頻、中頻、高頻的小信號模型，雖然借鑒了pspice模擬軟體中用等效電路模型的方法，但是本文分別討論了準靜態和非準靜態時器件的本徵部分以及包含非本徵部分工作于低頻、中頻和高頻條件時的模型，可以根據這些模型編寫相應的模擬軟體，這樣在做器件的模擬分析與器件設計的時候，就可以利用模擬軟體逐步深入地分析器件在不同的條件下和器件的不同部分在工作時的各種小信號特性，有利於抓住器件工作的本質特性，設計出符合要求的各類通用和特殊器件。
  10. This thesis chooses b spline wavelet that adapts to the analysis of power system signal, and uses the wavelet transformer to analyze the magnetizing inrush current and inner fault current. a transformer microcomputer protection was designed in this thesis, and in the base of intermission angle principle, a new criterion was established, which pierces through the traditional method with accurate measurement of intermission angle, but analyses the wave by wavelet transform. this criterion is lower in hardware, so it will be realized in the existing hardware

    本文選擇適合電力系統信號分析的b樣條函數作為母小波，對勵磁涌流和內部故障電流進行小波分析，並設計微機型變壓器保護基本配置，在以往間斷角原理鑒別勵磁涌流的基礎上，突破傳統精確測量勵磁涌流間斷角的方法，直接對信號小波變換后的波形進行分析，建立一個新的鑒別勵磁涌流判據，該判據對硬體要求不高，可以在現有一般硬體平臺上實現；並編寫以b樣條函數為母小波的小波變換判據演算法程序。
  11. Secondly, some encryption algorithms are introduced, with the analysis and comparison for these encryption algorithms, the author designs an appropriate project to accomplish the end - to - end encryption. thirdly, this paper accomplish the design of an encryption scheme which combining the strongpoint of the rsa algorithm and the idea algorithm. the main process is as following : first, input the digital signal to the encryption device, and then the digital signal exclusive or with the keying sequence which is generated by key stream generator ( ksg ) and the ksg is based on the idea encrypting and deciphering algorithm, the secret key synchronization is also studied

    本課題主要研究的內容是數字集群通信系統加密機制的研究，首先介紹了數字集群通信系統的安全保密機制，講述了單向和雙向鑒權的過程、單呼和群呼的空中介面加密過程及其密鑰的選用和管理，特別介紹了端到端加密;然後介紹了幾種常用的加密演算法，通過分析其優劣，提出了端到端加密的解決方案;最後完成了基於rsa演算法和idea演算法的數字集群通信系統加密方案的設計，其具體過程為將經過數字信號送入加密器里，和以idea加密演算法為基礎設計的密碼流發生器（ ksg ）產生的密碼序列進行加解密運算，並且研究了此加密過程的密碼同步問題。
  12. In this paper, we presented a gas classification model which based on synthetic consideration of all the processing methods

    結合氣體等級識別的要求，在綜合各種信號處理方法的基礎上，提出了基於電子鼻的氣體等級鑒別模型。
  13. Peaks at similar mass - to - charge ratios ( clusters ) are identified across spectra ( figure 2 ) and relatie signal amplitude differences are compared using sophisticated pattern recognition software to identify expression patterns that uniquely characterize specific diseases or conditions

    質譜圖中具有相似質荷比的峰（群）及相對信號強度的差異可以通過高級模式識別軟體分別得到鑒定和比較，從而鑒定出某一特定疾病或身體狀態的獨特蛋白表達模式。
  14. These years wavelet theory has been widely applied in underwater signal processing. whereas its excellent time - frequency localization, this dissertation takes continuous wavelet transform ( cwt ) as research tool and devoted to systematic research and deep exploration of two aspects in underwater signal processing field - estimation of parameters and target classification and identification

    近年來小波分析在水下信號處理方面的應用得到了長足的發展，鑒于其良好的時頻局部化特點，本文將基於連續小波變換的時頻分析作為工具，就參數估計和目標識別兩方面的問題做了系統研究和深入探討。
  15. In signal space, speech enhancement is adopted to effectively suppress the noise and increase the discriminative information embedded in noisy speech signal. however, the speech distortion introduced by enhancement, as well as the residual noise, is a very adverse factor for recognition

    在信號空間，利用語音增強有效抑制噪聲，提高輸入信號中的鑒別信息，但增強帶來的語音失真和增強后的剩餘噪聲是對語音識別非常不利的因素。
  16. The x47 phase - detector is an analog integrated circuit produced by the 24th institute of the information industry department. the main function of x47 phase - detector is to detect the difference of phases of its two input signals. but it ? erformance can not be analyzed by directly using the orcad / pspice9 ? - - - - a world - wide well known general purpose simulation software, and all circuits and systems using this kind of phase detector can not be directly simulated by orcad / pspice9 either

    X47鑒相器是信息產業部第24研究所設計生產的一種模擬集成電路，用於鑒別兩路輸入信號的相位，但是卻不能直接用通用的電路模擬軟體orcad pspice9分析其性能，使用x47鑒相器的電路和系統也不能直接用orcad pspice9進行模擬。
  17. On the basis of the theory and the experiment, the paper has synthetically analyzed the anti - interference characteristics of the hardware method ( differential balance ) and software method ( digital filter ). the paper has presented that these two methods have some disadvantages respectively. based on this fact, a new method has been presented. hardware method can be use to restrain periodical interference, and software method can be use to discriminate pulse polarity

    從理論和試驗兩方面，綜合分析了硬體措施（差動平衡法）和軟體措施（數字濾波法）抑制干擾（包括周期性和脈沖性干擾）的方法和特點，指出了兩種方法各自存在的缺點，在此基礎上提出了用硬體方法抗周期性干擾，用軟體抗脈沖性干擾的新方法，並通過試驗證明，該方法可以抑制周期性干擾，有效地鑒別出外部干擾信號和內部局部放電信號。
  18. The double - frequency laser interferometer belongs to the heterodyne interferometer. it has been proved that this kind of interferometer possesses the advantage of having a higher transform gain, better wave - filter capacity and high spatial resolution. furthermore, this kind of interferometer can filter out background light interference and obtain a measuring signal with high signal / noise ratio

    雙頻激光干涉儀是一種外差干涉儀，理論分析證明：外差干涉具有高的轉換增益、良好的濾波性能及優異的空間鑒別能力，能有效地濾除各種背景光干擾，得到信噪比很高的測量信號。
  19. In order to improve the ranging accuracy of a lidar, the effect of amplitude and width of the echo signal on the ranging accuracy of a lidar with bell - type laser pulses in temporal domain and gaussian pulses in spatial domain, was studied under the condition of constant - voltage - amplitude discrimination

    摘要為了提高脈沖激光雷達的測距精度，研究了光束在空域為高斯光束、時域為鐘型脈沖的激光雷達在恆電壓幅度鑒別模式下，回波信號幅度變化和寬度變化對測距精度的影響。
  20. First, delay window is used to reduce influence of pulse disturbance and signal amplitude to measurement result. second, according to the feature that width of receiving signal is wider than disturbing signal, width differentiation circuit is utilized to distinguish receiving signal and disturbing signal. third, most of digital circuits are integrated into isplsi ( in system programmable large scale integrated chip ) 1032 so as to simplify design and to develop the stability and reliability of the system

    關于提高系統的穩定性和可靠性問題：一是採用了延遲窗口接收技術，以盡可能減小干擾脈沖對測量結果的影響；二是根據接收信號脈寬比干擾信號脈寬要寬的特點，採用脈寬鑒別電路來鑒別接收信號；三是用可編程大規模晶元isplsi1032對系統大部分的數字電路進行了集成化設計，達到既簡化電路設計、又提高系統穩定性可靠性的目的。
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