signal amplification 中文意思是什麼

signal amplification 解釋
信號放大
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  • amplification : n. 1. 擴大；擴充。2. 【電學】增幅，放大（率）。3. （聲明等的）補充材料。
  1. Simulations of gain and aberrance are done to study the amplification of pulse signal with a frequency of 0. 25mhz

    對頻率為0 . 25mhz的脈沖信號放大進行了模擬，分析了其增益和脈沖畸變隨放大參量的變化情況。
  2. The translocation of gq has been proposed as one of the molecular mechanisms to control photoreceptor sensitivity. its role is molecular switch and signal amplification in photo - electro transduction

    Gq蛋白亞基的移位被認為是控制感光細胞光敏性的重要分子機制之一，在光電傳導中起分子開關和信號放大作用。
  3. Eddy - current sensor conversion circuit consist amplification circuit, band - pass filter circuit, demodulation circuit, differentiation phase and data sampling circuit. these circuits are used to convert the test signal of eddy - current sensor to discrete signal tend to process. the microprocessor system that formed of dsp chip is used to data fitting of test system, data displaying and data communicating with personal computer, etc. the interference questions of hardware design and the measure of eliminating interference signal in the subject are introduced in the last of this chapter

    硬體電路的設計主要分三大部分來實現：激勵源電路部分，由分頻電路和頻率合成電路組成，產生頻率穩定的激勵信號以確保檢測任務的正常進行；傳感器變換電路部分，由放大電路、濾波電路、檢波電路、鑒相電路和數據採集電路組成，主要將電渦流傳感器檢測線圈檢測到的信號變換成只含有被測信息的離散信號，易於后續電路處理；由dsp晶元構成的微處理系統，主要完成檢測系統的數據擬合、顯示及與主機通信等功能。
  4. 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。
  5. One forward optical receiver module takes one slot, after power double - amplification inside, send out 1 way rf signal 104dbuv and 1 way level checking signal, or two - distribution output

    一個正向光接收器模塊佔一個槽位，內置功率倍增放大，輸出1路射頻信號104dbuv和1路電平檢測口，或二分配輸出
  6. In the following chapters, a 16 - channel experimental phased array ultrasonic testing system is thoroughly explained, including digital beam forming, low noise programmable amplification of received ultrasound signal, multi - channel hi - speed hi - precision data acquisition, hi - speed real - time processing of multi - channel ultrasound signal, and hi - speed data transfer based on pci bus. in addition, the frame of software system is built

    本文詳細闡述了作者所獨立研製的16通道相控陣超聲檢測實驗系統，包括數字化超聲發射/接收波束形成、超聲信號的低噪聲程式控制放大、多通道高速高精度數據採集、多通道超聲信號高速實時處理、基於pci總線的高速數據傳輸等全部電路模塊的結構及工作原理，並說明了所編寫的底層軟體系統的框架。
  7. This product is a full electron construction in which its front - end adopts pressure sensor with baffle filled oil chip. output signal is sent the data to microprocessor from high - precision, low temperature drift and high - reliability amplification circuit and a d convert circuit, after operating, to transform by high - precision d a convert circuit into standard signal output

    該產品為全電子結構，前端採用帶隔離膜充油芯體的壓力傳感器，輸出信號由高精度低溫漂和高可靠性的放大電路和模數轉換電路將數據送入微處理器，經運算後由高精度數模轉換電路變換為標準信號輸出。
  8. Under the condition of " comparatively weak correlation between the two noises involved, coherence function is used as a frequency domain amplification factor for improving snr of the output signal to the filter and the speech enhancement effect. meanwhile, a real - time recursive algorithm is put forward in substitute for current algorithms based on short time fourier transform. the new algorithm will simplify computations and will be suited for real - time implementation together with the adaptive systems

    接著針對上述nanc系統兩路輸入信號噪聲相關性弱的情況，用相干函數作頻域增益因子來提高輸出信噪比與改善語音增強效果，同時，通過一種實時迭代演算法解決了短時傅氏變換計算量大的問題，簡化了計算，便於實時處理與實際應用。
  9. Surface plasmon resonance immunosensor is a relatively new immunoassay technique and has been receiving more and more attention in recent years. however, a major disadvantage of spr for bioanalytical applications is that low concentration or low molecular mass analytes could not be detected directly. therefore, it is a challenging task to develop strategies for improving the detection limit sensitivity of spr. in this paper, authors present a novel strategy for improving the sensitivity of spr immunosensing using streptavidinbiotinylated antibody complex. it is proven that the amplification strategy causes a dramatic improvement of the detection sensitivity. this amplification strategy is based on the construction of a molecular complex between streptavidin and biotin labeled protein. the complex can be formed in a crosslinking network of molecules so that the amplification of response signal will be realized due to the big molecular size of complex

    將鏈霉親和素-生物素系統用於表面等離子體共振免疫傳感的信號放大，實時檢測了人免疫球蛋白g higg的蛋白濃度。發生免疫反應的傳感片和生物素化抗體反應后，傳感片表面的一層生物素分子隨后與鏈霉親和素-生物素化抗體復合物中的鏈霉親和素的活性位點發生親和反應，從而使傳感片表面特異健合的物質質量顯著增加，大大提高了免疫檢測的靈敏度和檢測限。免疫反應經放大后，可檢測0 . 00510g ml濃度區間內的higg 。
  10. The injection - locking technology, characterized by the frequency stabilization, amplification, modulation and etc, has been widely used in the small - signal recovery, frequency synchronization, power synthesis, phase modulation and etc in the microwave, millimeter wave and higher frequency range communication and phased - array systems

    注入鎖定技術具有穩頻、放大、調制等特性，已被廣泛應用於微波毫米波以及更高頻段通信和相控陣系統中的小信號恢復、頻率同步、功率合成、相位調制等。
  11. The designing of extractive technology for original pulse signal can manage the low - pass filter ， high - pass filter and the amplification by grade, filter interference and noise, and then provide support for the data obtaining of blood pressure

    設計了合理優化的脈搏波動信號提取技術，使信號分級進行低通、高通濾波和放大，有效濾除各種干擾與噪聲，為血壓參數的提取做好硬體鋪墊。
  12. 4. pulse signal is researched when amplified by edfa. for signal with a frequency of 10 khz, the gain is about 3db higher than sequence signal amplification, but in time domain, aberrance occurred with the amplified signal

    4 .建立了edfa非穩態放大模型，對頻率為10khz的脈沖信號進行了實驗分析，結果表明，其小信號增益比連續光放大提高了3db ，但輸出脈沖存在畸變。
  13. The amplification characters of er3 + / yb3 + co - doped fiber are studied in our experiments. when the doped fiber length is 50cm, the amplified signal power is 170mw and the gain is 12. 2db in the case of signal power of 10. 8mw and pumping power of 2. 5w

    本論文著重研究了採用一級放大時，信號光在雙包層光纖中的放大特性，截取50cm的光纖，在輸入泵浦光功率為2 . 5w ，信號光功率為10 . 8mw時，獲得了170mw的放大信號光輸出，增益為12 . 2db 。
  14. From three - wave coupling equations, the optimal crystal length, conversion efficiency and parametric light pulse width are computed numerically when clbo is used in picosecond optical parametric amplification. the results present that clbo are suited for optical parametric amplification in short wave band. in order to get higher conversion efficiency, the crystal length should be optimized according to the intensities of pump and signal waves

    從三波耦合方程出發，對clbo用於皮秒級光參量放大時，最佳晶體長度、轉換效率和參量光的脈沖寬度進行了理論分析和數值模擬，結果表明clbo晶體適合在短波范圍作光參量放大，為達到高的轉換效率和窄脈寬的信號光輸出，泵浦光和初始入射信號光的強度應根據晶體長度取最優化值。
  15. Wide plus fyd multi - channel wind pressure measure transmitter employ import high precision and stability chip, and adopts surface treatment technology of special aluminum alloy and stress isolated technology in the sensor transfer differential pressure signal into ma dc standard signal by precise temperature compensation and amplification treatment

    Wideplus - fyd系列多路風壓測量變送器是選用進口高精度高穩定性晶元，並採用特殊鋁合金表面處理技術和傳感器應力隔離技術，經精密溫度補償及放大處理，將差壓信號轉換成420 ma dc標準信號。
  16. Wide plus ds series single - channel wind pressure measure transmitter employ import high precision and stability chip, and adopts surface treatment technology of special aluminum alloy and stress isolated technology in the sensor transfer differential pressure signal into ma dc standard signal by precise temperature compensation and amplification treatment

    Wideplus - ds系列單路風壓測量變送器是選用進口高精度高穩定性晶元，並採用特殊鋁合金表面處理技術和傳感器應力隔離技術，經精密溫度補償及放大處理，將差壓信號轉換成420 ma dc標準信號。
  17. Some commercial odor sensors and their performance are introduced and compared. then the three key parts of electronic nose : sensors array, signal amplification circuit and ad board are also introduced

    介紹了本課題中採用的電子鼻硬體系統的三個組成部分傳感器陣列、信號調理電路和數據採集卡。
  18. Portable ecg data acquisition has the functions of ecg signal amplification and pre - data processing

    完成心電信號的採集，放大， a d轉換，濾波等功能。
  19. The system consists of five units : ecg monitor, microcontroller and a / d converter, home network gateway and medical information management. ecg monitor has the function of ecg signal amplification

    系統由五部分組成：心電檢測單元，單片機控制及a d轉換單元，家庭無線傳輸單元，家庭嵌入式網關及醫院數據管理單元。
  20. Hardware design, the main part of tlle system, stresses the signal regulating methods such as signal amplification, channel choice and am transformation as we1l as the measure of usual parameters such as ac & dc electric parameters, contact resistance, time, temperature and practical signal transform circuit, etc. furthermore, the anticipated functions have been proved by practical use

    其中硬體部分主要側重於信號調理即信號的放大、通道選擇、模數轉換以及各測試量包括直流電參數、交流電參數、接觸電阻、時間以及溫度的測試方法以及具體的信號變換電路，並以生產出實際產品的方式驗證了結果。
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