脈沖檢波 的英文怎麼說

中文拼音 [màichōngjiǎnbō]
脈沖檢波 英文
pulse detection
  • 脈 : 脈名詞1. （動脈和靜脈的統稱） arteries and veins2. （脈搏的簡稱） pulse 3. （像血管的組織; 連貫成系統的東西） vein
  • 檢 : Ⅰ動詞1 （查） check up; inspect; examine 2 （約束; 檢點） restrain oneself; be careful in one s c...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  1. Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used

    通過對差頻信號進行的分析，得出了差頻相位的具體表達式，表現出了要檢測的各量的物理意義，對檢測的方法提供了理論依據。利用二維fft方法，可以有效地提取回波中目標的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題，採取時間波門的處理方法。
  2. The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble

    系統採用電臺的電視伴音調頻信號，其中電臺信號與伴音信號功率之比基本為10 ： 1 ，並且目標散射信號較弱，一般情況下淹沒在雜波和機器熱噪聲之下，採用常規的脈沖檢測方法很難對遠距離的目標進行檢測，而以電臺直達信號作為參考與目標回波信號進行相關檢測；系統中信號的相關處理會產生旁瓣，而強目標的旁瓣會影響附近的弱目標檢測。
  3. Based on mono - pulse radar system and the analysis of terrain echoes, a geometrical model of air to ground ranging is constituted. by using the signals received from the sum and difference channels of terrain follow radar, a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained. according to the characteristics of the echoes, the theory and method of pass zero detection of difference channel and its applications are discussed in detail

    針對一維單脈沖雷達體制，分析了地形目標回波特性；建立了地形跟隨雷達空地測距的幾何關系；利用雷達收發信號，導出了地形跟隨雷達和差接收通道的回波信號表達式，進行了波形模擬，得到了地形跟隨雷達的地面散射產生回波在時域中的特性；根據和差回波特性，闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用，並給出了真實雷達對外輻射試驗的結果，驗證了文中的模擬。
  4. It provides an active field for development of radar techniques. this dissertation is based on the project " cfar ( constant false alarm rate ) detection for airborne pd radar "

    本文是結合課題「機載脈沖多普勒雷達恆虛警檢測性能研究」進行的，主要考慮如何克服地雜波影響，提高系統的檢測性能。
  5. Standard practice for ultrasonic pulse - echo straight - beam examination by the contact method

    用接觸法做超聲脈沖回波縱波檢驗
  6. Method for assessing the overall performance characteristics of ultrasonic pulse echo testing instrument

    評定超聲脈沖回波檢驗儀綜合性能特徵的試驗方法
  7. Method for assessing the electrical characteristics of ultrasonic testing instrument using pulse echo technique

    採用脈沖回波技術評定超聲檢驗儀電氣特性的試驗方法
  8. In this dissertation, radar detection in hrr has been taken as background. the followings are main contents of this dissertation : ( 1 ) based on analyzing the targets and the clutter ’ s specific characteristics of hrr radar, the echo models of targets and clutter have been studied respectively ; the changes of targets ’ echoes in different elevation angles, azimuth angles and attitude angles have been analyzed ; then, the echo models of lfm radar clutter have been established

    本文針對高距離分辨雷達目標檢測開展研究，主要完成了以下幾方面的工作: （ 1 ）分析了高距離分辨雷達目標和雜波回波特徵，在此基礎上分別研究了高距離分辨雷達目標和雜波的回波模型，分析了不同俯仰角、不同方位角以及不同姿態下目標回波模型的變化，並建立了線性調頻脈沖壓縮雷達的雜波模型。
  9. To suppress the clutter, noise and detect target, we adopt several advanced sp methods such as pulse compression, mti, mtd, cfar, amplitude - comparison angle measurement and ambiguity resolution, of which we emphase the algorithms of cfar and ambiguity resolution. two cfar algorithms, cell - averaging cfar ( ca - cfar ) and ordered

    為了抑制雜波、噪聲和檢測目標，採用了脈沖壓縮、動目標顯示、動目標檢測、恆虛警、單脈沖比幅測角和解模糊等較先進的雷達信號處理技術，並採用了多模式分通道處理方式。
  10. Verification scheme of pulse waveform parameter measuring instruments

    脈沖波形參數計量器具檢定系統
  11. 7 in order to improvement the performance of the whole system and reduce the cost, a new signal processor is given, which based on the new pulse count method brought forward by the author

    從系統聯調的測試結果可以看出，利用自適應檢波電路，可以大大改善基於脈沖計數新方法的雷達信號處理機的性能，使得雷達系統的測距精度大大提高。
  12. Method for measurement of ultrasonic attenuation coefficient of solid by pulse echo technique

    用脈沖回波技術測量固體超聲波衰減系數的檢測方法
  13. In relation to computers, the term is applied to a read / write head, to detector of sector marks in a magnetic disc system, and to electronic / sonic pulse converters of delay line memory

    在與計算機有關時，這個術語用在磁盤系統中的讀寫磁頭、扇面標記的檢測上，以及用在延遲線存儲器的電子或聲波脈沖變換器上。
  14. Standard guide for material selection and fabrication of reference blocks for the pulsed longitudinal wave ultrasonic examination of metal and metal alloy production material

    金屬和金屬合金生產材料的脈沖縱波超聲檢驗用的標準塊的材料選擇與製造的標準指南
  15. Finally, by adjusting of detector, the measurement results are presented. and the existing problems and following employment are pointed out

    最後，對毫米波短脈沖檢波器進行了調試，給出了測試結果，分析了電路中存在的問題，並給出了下一步的改進措施。
  16. In this paper, based on the theoretical analysis of detector and modulator, the ka - band millimeter - wave short pulse detector and modulator are designed

    本論文在對檢波器和調制器進行理論分析和研究的基礎上，分別設計了ka波段毫米波短脈沖檢波器和調制器。
  17. Secondly, based on the theoretical analysis and the simulation by the ads and hfss, the millimeter short pulse detector and modulator have been successfully fulfilled

    其次對毫米波短脈沖檢波器和調制器進行了理論研究，並利用ads軟體和hfss軟體對相關組件進行了分析、模擬和設計。
  18. In the design, the diode of agilent ' s hsch - 9161 is used. with the diode circuits in parallel, the millimeter - wave short pulse detector has been designed. it works at the frequency of 37 to 38ghz, and the pulse duration is 400ps

    本文採用agilent公司的hsch - 9161檢波二級管，選取二極體並聯檢波電路形式，完成了工作頻率為37 ~ 38ghz 、脈沖寬度為400ps的毫米波短脈沖檢波器的研製，同時設計了一個毫米波短脈沖調制器。
  19. General rule of ultrasonic testing of metals by pulse echo technique

    用脈沖回波技術對金屬材料進行超音波測檢的通則
  20. An improved median filter based on neighborhood statistic information and impulse detection

    基於鄰域統計和脈沖檢測中值濾波改進演算法
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