激光回波 的英文怎麼說

中文拼音 [jīguānghuíbō]
激光回波 英文
laser echo
  • 激 : Ⅰ動詞1 （水因受到阻礙或震蕩而向上涌） swash; surge; dash 2 （冷水突然刺激身體使得病） fall ill fr...
  • 光 : Ⅰ名詞1 （照耀在物體上、使人能看見物體的一種物質） light; ray 2 （景物） scenery 3 （光彩; 榮譽） ...
  • 回 : 回構詞成分。
  • 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...
  • 激光 : [物理學] laser 激光靶 laser target; 激光報警器 laser avoidance device; 激光玻璃纖維 laser fibre; ...
  1. Can it be lasing on ito just as on glass ? our experimental answer was positive

    能否象在玻璃襯底上一樣，在ito上也能實現波導式激光，實驗給出肯定回答。
  2. The hardware mainly included the emitting circuit of the laser light, receiving circuit and high speed data acquisition circuit

    硬體部分包括激光發射電路、回波接收電路，高速數據採集電路等。
  3. In order to better detect the image edge information, firstly, non ? linear median filter technology of characteristic direction was applied to filter out the gauss noise ; secondly, ( 3, 1 ) biorthogonal spline wavelet was used as the primitive wavelet filter, adopting lifting scheme to build the most superior biorthogonal wavelet filter, and applying the superior biorthogonal wavelet to the multiresolution wavelet edge detection ; at the same time, floating threshold was defined and applied to the image edge detection, and the image edge position was located accurately

    在激光探測系統中，微弱的回波圖像淹沒在強背景噪聲中，為更好地檢測這類含噪圖像的邊緣信息，首先應用特徵方向非線性中值濾波技術，濾去高斯噪聲；其次，選擇（ 3 ， 1 ）雙正交樣條小波作為原始小波濾波器，採用提升方案構造最優雙正交小波濾波器，應用構造的雙正交小波進行多尺度小波邊緣檢測；同時，通過定義浮動閾值，並應用於圖像邊緣檢測，較準確地定位了邊緣位置。
  4. In order to better detect the image edge information, firstly, non - linear median filter technology of characteristic direction was applied to filter out the gauss noise ; secondly, ( 3, 1 ) biorthogonal spline wavelet was used as the primitive wavelet filter, adopting lifting scheme to build the most superior biorthogonal wavelet filters and applying the superior biorthogonal wavelet to the multiresolution wavelet edge detection ; at the same time, floating threshold was defined and applied to the image edge detection, and the image edge position was located accurately

    在激光探測系統中，微弱的回波圖像淹沒在強背景噪聲中，為更好地檢測這類含噪圖像的邊緣信息，首先應用特徵方向非線性中值濾波技術，濾去高斯噪聲；其次，選擇（ 3 ， 1 ）雙正交樣條小波作為原始小波濾波器，採用提升方案構造最優雙正交小波濾波器，應用構造的雙正交小波進行多尺度小波邊緣檢測；同時，通過定義浮動閾值，並應用於圖像邊緣檢測，較準確地定位了邊緣位置。
  5. Ccd ), light signals from the object is covered by relay scattering when laser beam penetrates through the atmosphere. so the technique of range gate has been used in such system

    當激光通過大氣時，瑞利散射將使得ccd器件接收到的目標回波信號淹沒在噪聲信號之中，因此系統中採用了距離選通技術。
  6. On the design of the system, the thickness measure system of mems chip is built based on lbu and pump - probe technology. on the analysis of data, the reflectivity curve is analyzed using the law of reflectivity change induced by ultrasound, and the thickness is calculated using the system designed by the article, to aluminum film the size of about 20nm can be measured, when the film be measured is single layer, the relative error of the system is less than 2 %, when the film be measured is double layer, the relative error of the system is less than 10 %

    在基礎理論方面研究了激光（特別是超短脈沖激光）超聲的激勵機理，探討了激光調制技術以提高系統信噪比，闡述了泵束探針束技術及相關實驗設置；在系統設計上，以激光超聲為基本原理，以泵束探針束技術為系統設計方案完成了mems基片厚度測量系統的設計；在數據分析方法上，利用聲致光反射率變化的一般規律對測得的光反射率曲線進行分析，確定超聲回波在薄膜兩界面間來回傳播的時間，以計算薄膜的厚度。
  7. Satellite laser altimeter return waveform is sensitive to the vertical canopy structure and the change of underlying ground elevation. it is optimal for mapping forest structure. the return waveform and the processing method are described. the relationship between laser waveform and canopy structure parameters is explored ignoring the clumping effects. the clumping caused that structure parameters are different from the actual value. to solve this question, a model by 3 - d canopy structure parameters is needed

    星載激光測高儀的回波信號能夠靈敏反映地面植被組成和地表高度的變化，因此能夠用於探測森林地貌;首先對星載激光測高儀的森林回波信號及其處理方法進行了介紹，探討了在不考慮植被聚集情況下，植被組成與回波信號之間的關系;由於植被的聚集效應，例如樹葉群集成樹冠，會導致植被組成參數與真實值之間存在差異，這需要建立關於三維的空間分佈模型加以解決。
  8. At the same time the ionized electron under the strong laser field may return to the vicinity of the nucleus and recombine to the groud state. subsequently a photon of high energy may be emitted. this is high - order harmonic generation ( hhg )

    同時電離后的電子在強激光場的作用下，可能會回到核附近，與核發生相互作用從而放出高能光子，產生高次諧波（ hhg ）等現象。
  9. 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。
  10. Horizontal received signal analysis of a compact aerosol lidar

    小型氣溶膠激光雷達水平大氣回波信號分析
  11. Abstract : the threshold algorithm of the target detection is often used to detect target echo signals. its performance is based on signals - noise ratio. when signals - noise ratio is great than 6. 7, the target can be detected. in order to increase the signals - noise ratio, matching filter is often used. if the system is narrow band system, the noise is color noise and matching filter cannot be used. therefore, the signals - noise ratio cannot be increased. however, the geometrical characteristic of the laser echo signal is different with the noise. this paper advises the algorithm that detects the target by the geometrical characteristic. when signals - noise ratio is great than 2, this algorithm can detect target. this algorithm has been used in practice

    文摘:目標檢測的閾值法經常用於檢測目標的回波信號.它的性能取決于信噪比，當信噪比大於6 . 7時，能夠檢測出目標.為了提高信噪比，經常採用匹配濾波器.如果系統是窄帶系統，噪聲為色噪聲，無法使用匹配濾波器，不能提高信噪比.激光回波信號的幾何特徵不同於噪聲.提出了一種利用這種幾何特徵檢測目標的演算法.當信噪比大於2時，該演算法能夠檢測出目標.該演算法已經實際應用
  12. It is useful for selecting reasonable system parameters through it. for the data process in dial system, we discussed the combined effects of temporal autocorrelation and lasers cross correlation and signal averaging

    對于dial系統中的數據處理，本文著重討論了信號平均技術和激光器回波信號時域自相關以及激光器互相關對co2dial系統測量靈敏度的影響。
  13. The models of the laser emitting subsystem, the pin photoelectric receiving subsystem and the apd echo receiving subsystem of the laser system for identifying & communicating presented

    本文對激光識別與通信系統的激光發射子系統、 pin光電接收子系統和apd回波接收子系統建立了數學模型。
  14. The factors that influence the laser echo rate are analyzed in this paper and then elucidated that the application of this principle improved the echo rate greatly. 4

    從對目標坐標測定儀中激光回波率的分析入手，闡明了應用圖像取差原理極大地提高了測距系統的回波率的原因。
  15. To solve the laser weak echo detection under the clutter background, a dynamic programming ( dp ) technique has been developed for the detection of weak targets

    摘要為解決低信噪比下激光微弱回波的檢測問題，提出了一種新的小目標檢測演算法。
  16. In the paper the methods to process weak echo by using dsp technology based on low snr of laser weak echo are presented. and the methods are simulated and calculated

    摘要文章針對激光弱小回波信號的低信噪比，提出了運用數字信號處理技術對回波信號進行處理的方法，並進行了一系列模擬和計算。
  17. Besides, factors that affect the results of subdivision driving are discussed. furthermore, after analyzing popular methods applied in laser distance measure, waveform analysis is used in the laser scanner. a high - speed a / d card is used to acquire the signal, related software of this part is programmed and the time of waveform analysis is estimated

    然後對常用的距離計數法進行了精度分析，確定在三維激光掃描儀中採用波形記錄法實現時間間隔測量，根據三維掃描儀的精度要求採用高速採集卡對激光的主、回波波形進行採集、分析與處理，並編寫了波形採集、分析程序，同時對波形分析處理所需要的時間進行了估算。
  18. The article has a deep study on test control technique and echo processing methods for improving the ranging precision of 3 - d laser scanner

    本文對三維激光掃描儀的測控系統技術及通過對回波信號進行處理來提高測距精度的方法進行了深入的研究。
  19. The primary advantages of dp are its sensitivity to weak targets along with its robustness to laser echo glitter

    採用動態規劃方法克服了低信噪比下激光回波閃爍對目標檢測的影響。
  20. To solve the weak target detection under the clutter background, combined with dynamic chaotic model, the chaotic property of the laser echo signal is discussed and a novel algorithm is presented based on chaotic signal detection using neural network predictor

    摘要為了解決雜波背景下的激光微弱目標檢測的問題，結合混沌動態建模思想，討論了激光回波的混沌特性，提出激光信號非線性混沌序列的神經網路建模、預測及信號檢測演算法。
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