目標信號 的英文怎麼說

中文拼音 [mùbiāoxìnháo]
目標信號 英文
target signal
  • 目 : Ⅰ名詞1 （眼睛） eye 2 （大項中再分的小項） item 3 [生物學] （把同一綱的生物按彼此相似的特徵分為幾...
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  • 目標 : 1. （對象） target; objective 2. （目的） goal; aim; destination
  1. For ship mounted sonar, the transducer received not only the required signal but also the ship noise. for distant signal, the ship noise is a strong interference

    在船用聲吶環境中，基陣所接收的除了可能有的目標信號外，還存在本艦噪聲，它對于遠方的目標信號是一個強大的干擾源。
  2. The specific research methods are listed : 1. matched filter taking the max ouput snr as the best rule correlates nonstop divided signal and divided echo to detect low snr target signal. then all one dimension divided correlation outs and done fft in portrait to leach interferential signal such as static or low rate mussy meaves, many pathway echo and so on and to take target ' s time difference and doppler frequency that combine parameters that target ' s direction taken from antenna and so on to implement target ' s orientation and tracking

    具體研究方法如下： 1 、採用以輸出信噪比最大為準則的最佳匹配濾波器來對分段的參考和目標信號作相關處理來檢測低信噪比目標信號，然後對一維分段相關輸出組作縱向傅立葉變換來濾除靜態或低速的雜波、多徑回波等干擾信號，並提取目標的時差和多普勒頻率，再結合由天線獲得的目標方向等參數，就可以實現目標的定位和跟蹤。
  3. This dissertation mainly researches the displaced phase center antenna ( dpca ) technique in the new system, and the contributions are calculated as following : 1. the doppler history is analyzed for the spaceborne bistatic sar, doppler center frequency and doppler fm rate computational methods are studied. summing up is done for the methods of moving target detection and imaging

    本文完成的主要工作有: 1 .分析慢速運動目標信號特徵以及運動目標對sar成像的影響（多普勒中心頻率，多普勒斜率以及距離徙動誤差） ，總結了目前sar運動目標檢測與成像的主要方法。
  4. The feature parameter extraction methods of the underwater target are studied which can improve the performance of the underwater acoustic countermeasure equipments. several feature extraction methods such as the scale invariance feature extraction, target pole extraction fourier - mellin transform etc are investigated by computer simulations. the experimental results demonstrated the efficiency of these feature extraction methods in the applications of underwater target recognition

    對多種特徵提取方法如目標相對不變尺度特徵提取、目標極點特徵提取、目標信號的傅里葉?梅林變換特徵提取等進行了模擬研究，結果表明了這些特徵參數提取方法的有效性，具有良好的應用前景。
  5. The fruits of emulational research are obtained : 1 the method of divided planar correlation deal with wonderfully and can detect the target information of tv sound fm signal about time difference and doppler frequency with this understanding of - 20db snr

    模擬研究成果： 1 、分段二維相關處理方法效果不錯，能在- 20db信噪比情況下，可靠地檢測到電視伴音調頻目標信號的時差與多普勒頻率信息。
  6. Give some simulation result about noise cancelling, find the optimal delay, then estimation of doa with the narrowband signal and broadband signal at different snr. the results show that the method is feasible

    對本艦噪聲抵消過程進行了模擬，首先確定最佳延遲，然後在抵消的基礎上分別對窄帶和寬帶目標信號進行方位估計，驗證了該方法的正確性。
  7. The pixel size of p + / n - well / p - sub structure is 100 umx 100 n m, fill factor is 77. 6 %. it can obtain target information with illuminance intensity in the range of 0. 011x ~ 98, 0001x, and the sensor photoelectric sensitivity is 35v / lx ? s. when the method of changeable reset frequency double scanning is used, the photoelectric dynamic range can be 139. 8db, which is high in the 0. 6 um level cmos image sensors already reported

    在對感光單元進行器件物理結構優化的研究中，通過採用深結深光電管結構，提高了傳感器的感光響應，其中p m階」襯底結構的傳感器面積為100umx100urn ，感光面積百分比為77石，可對0刀98 ， 000lx照度的目標信號進行傳感，感光靈敏度大於3sv ix ? s ，採用了變頻兩次掃描后，動態范圍可達139
  8. Based on the mathematical model of target signal of millimeter wave radiometer on bomb, the digital simulation is made of the target signal

    摘要從彈載毫米波輻射計的目標信號數學模型出發，對目標信號進行了模擬計算。
  9. This study is supposed that the fsk / psk signal is applied to ground - based searching radar, and the radar video returns which are modeled and simulated consist of target returns and clutter returns

    本文研究的雷達視頻回波信號，是假設採用地面搜索雷達的工作方式時所產生的回波信號，包括對目標信號和雜波信號的建模與模擬。
  10. And validate of this method for broadband signal is also checked

    對目標信號為寬帶時進行了理論驗證。
  11. And target signal cancellation is a serious problem. many signal processing techniques have been proposed to avoid signal cancellation

    因此，在寬帶旁瓣對消器中目標信號被消除是一個非常嚴重的問題。
  12. Theoretical analyze and computer simulation prove that the side lobe canceller system using polarization radar can depress jammer while not damaging the signal, the overall performance is better than that of the system using polarization radar only in the auxiliary antenna

    理論分析和模擬實驗表明使用全極化雷達的旁瓣對消系統，可以在抑制干擾的同時盡量不損失目標信號，系統整體性能優于主天線為單極化時系統的性能。
  13. To detect target signal with strong sea clutter, to increase the clutter visibility of sea radar and enable higher resolution and reliable monitoring performance of sea radar, three kinds of key clutter modeling technology for sea radar are studied in detail, which are clutter scattering mechanism modeling, clutter statistics modeling and clutter nonlinear modeling on basis of elaborating sea clutter characteristics

    摘要為了能在強烈的海雜波背景下檢測到目標信號，從而提高海面雷達的雜波可見度，使海面雷達具有更高的解析度和可靠的監測性能，在精確的描述海雜波特性的基礎上，詳細研究了雜波散射機理建模、雜波統計建模和雜波非線性建模3種海面雷達雜波建模關鍵技術。
  14. The main function of the module is as follows : it can detect the cw signal transmitted by the active sonar, and measure the frequency of target signal and the direction of target. it can execute the tracking order sent by the display and control platform, and track the searched target, measure the target signal repetition intervals and target distance, and give the reliability of estimated distance

    該軟體的主要功能包括：對主動聲吶cw脈沖信號進行檢測，測量目標信號的中心頻率，測定目標的方位；執行顯控臺跟蹤命令，對搜索到的目標進行跟蹤，測量目標信號的重復周期，測定目標的距離，給出距離測量值的置信度。
  15. A kind of mathematical model about the output signal of the millimeter wave radiometer sensor is established. through analyzing and abstracting the output signal, we devised the target template. after previous transaction, use the fuzzy theory to calculated the target recognition probability, including the low speed scan and the high speed scan

    建立了毫米波輻射計輸出信號波形的數學模型，通過波形特徵分析和提取，分別設計了高、低速掃描條件下的目標模板，提出了一套對目標信號進行預處理的方法，並運用模糊目標識別理淪，分別計算了高、低速掃描條件下的目標識別概率。
  16. Within one single source echo, both doa and time - delay can be estimated simultaneously by this algorithm via high - resolution rotational invariance technique and high - resolution time - delay frequency ( tdf ) technique. the esprit - tdf algorithm has features of low computation, good precision, and high resolution both in doa and time - delay. it is suitable for multiple source exact localization

    該方法利用高分辨旋轉不變技術和高分辨時延頻率技術，可在單次目標回波內實現多目標信號的方位和時延參數的高分辨聯合估計，具有運算量小、分辨能力強、估計精度高等特點，能夠對多目標進行高分辨精確定位。
  17. Meanwhile, the performance of joint estimation of time - delay and frequency using the reduced interference distribution ( rid ) is analyzed comprehensively

    同時還利用減少交叉項分佈（ rid ）實現水下多目標信號的時延-頻率聯合估計。
  18. First please make sure the useful signal has very good snr before you input it to amplifiers chain, then you can calculate how much gain and nf you need to get the targeted signal amplitude and noise level, based on this you can choose the right components to design amplifiers chain

    后才將其輸入放大器鏈，接著計算獲得目標信號振幅和噪聲水平所需的增益與nf的大小，最後根據這些數據選擇合適的器件設計放大器鏈路。
  19. But when the steering vector errors are in existence, the target - signal cancellation is occurred

    然而，當存在指向矢量誤差時，會出現目標信號被消除的現象。
  20. Through the analysis of the test data and the new development in the relevant literature, some more realistic models for sea - clutter and multipath propagation is concluded and the simulation is accomplished in the software. they provide the foundation for low - altitude radar target detection & tracking techniques research. in the second part, radar low - altitude target detection & parameters ( elevation - azimuth - range delay - doppler shift ) measure are studied

    （海）雜波和目標信號的多徑傳播嚴重影響了雷達低空目標探測與跟蹤的性能，通過分析國內外的有關試驗數據和最新的研究進展，總結出比較接近實際的海雜波和多徑傳播模型，並在有關軟體中實現了海雜波與多徑傳播的模擬，為進一步研究各種低空目標探測與跟蹤測量演算法提供了保證。
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