雷達測高計 的英文怎麼說

中文拼音 [léidácègāojì]
雷達測高計 英文
echo altimeter
  • 雷 : 1. （雲層放電時發出的響聲） thunder 2. （軍事上用的爆炸武器） mine 3. （姓氏） a surname
  • 達 : Ⅰ動詞1 （暢通） extend 2 （達到） reach; attain; amount to 3 （通曉; 明白） understand thoroughly...
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 雷達 : [訊] radar （縮自 radio detection and ranging）
  1. Those include power supply circuit design ; ground plane design and sample clock design. combining some radar development, its high - speed a / d circuit is tested, and has given out some test results

    最後結合某雷達研製，對其高速模數轉換電路設計進行了實際測試評估，並給出了部分測試結果。
  2. The laser radar sub - system determines the heights of the tsp according to the slant height and the oblique angle measured by the laser range finder and the electronic theodolite simultaneously. by lucubrating the motion law of tsp, we decided to compute decent velocities with least - squares procedure & two ranks curve fitting

    地面激光雷達跟蹤測量分系統根據測量到的斜距離和俯仰角確定末敏彈傘彈系統的高度，在深入研究末敏彈穩態掃描過程的運動規律后，通過最小二乘法的二階分段曲線擬合，計算出落速。
  3. 4 a block diagram of phased array radar used which is used to measuring the distance, velocity and azimuth of the object in the horizontal plan and the highness in the vertical plane

    4給出了水平方向採用二維譜估計技術測距離、速度和方位，垂直方向採用波束掃描測高的小型車載相控陣雷達系統框圖。
  4. Main conclusions drawn from the analyses of calculating results are as follows : ( 1 ) the microwave absorption of atmosphere gas have obvious attenuation at the wavelengths for cloud detection, thereinto, the water attenuation effect changes greatly, so the 94ghz cloud detecting radar should have water vapor attenuation correction scheme. ( 2 ) when 37ghz and 94ghz radars detect clouds, the difference between the atmosphere and cloud attenuation and the large variety of radar reflectivity conduce the intension of the radar backscatter signals change. ( 3 ) for the thin cloud layer and low water content of cloud, 37 - ghz radar backscatter signals are not as good as 94 - ghz radar, that is to say that the 94ghz radar has better capability in thin clouds detection

    本工作得出如下結論： （ 1 ）大氣氣體的微波吸收在測雲波段產生明顯的衰減，其中水汽衰減效應變化很大；即將上天的空間94ghz測雲雷達必須有水汽衰減訂正方案； （ 2 ） 37ghz和94ghz雷達測雲，由於大氣和雲衰減不同和雷達反射率的很大差異，導致雷達回波信號強弱不同； （ 3 ）對雲層較薄、含水量較少的雲，在不計雷達參數的情況下， 37ghz雷達回波信號不如94ghz測雲雷達，也就是說94ghz對薄雲有更強的探測能力；對雲層較厚、含水量大的雲，由於強衰減的作用， 94ghz雷達回波信號小於37ghz雷達； （ 4 ）從大氣衰減的不利因素方面考慮，空間94ghz雷達測高層薄雲的效果最好；測低層薄雲時需要考慮氣體衰減訂正；因濃厚雲的強衰減作用，探測其中下部的能力大大減弱，不僅要進行衰減訂正，而且要藉助其他信息來反演整個雲層的含水量垂直分佈； （ 5 ）為了獲得從極薄到極濃厚雲的垂直分佈探測能力，未來測雲雷達系統最好採用雙波長甚至三波長（如94 、 37和13ghz ） 。
  5. As for a space - based cloud radar, the change of the radar reflectivity n and the change of attenuation rate along with the cloud liquid water content have been compared between 37 ghz and 94ghz. the transmittance t of single level cloud for different heights and liquid water content has also been calculated at 2 frequencies. by defining a = n tr, which combines both effects of radar reflectivity and transmittance, we have examined the values of a at 37ghz and 94ghz for high, middle and low cloud liquid water contents

    對空間測雲雷達，討論了37ghz和94ghz這兩個頻率的雷達反射率和衰減系數隨雲液水含量的變化；計算了不同高度的單層雲在不同頻率，不同含水量情況下的雲層透過率_ ；定義a = _來綜合考慮雷達反射率和透過率對空間測雲雷達回波的影響，分析比較了雲含水量高、中、低時37ghz和94ghz的a值大小。
  6. Three - dimensional high - density space / time soundings serve as the main body of data consisting of 3 - hr interval doppler probings, 10 - 30 min rainfall intensity, surface raindrop sizes sampling and gps - guided flight cloud physics detections with output taken at 2 - sec and 200 - m intervals. and specific systems associated therewith are developed for multiple - way communication and data collection and storage, a platform for analysis, retrieval softwares for dominant items and multi - scale cloud models - all constitute a system of techniques for meso to microscale observations and analysis. 2 ) atmospheric water resource and macroscopic rainfall properties in dry periods of spring and autumn of the target region

    以加密觀測的多普勒雷達、 3小時探空、 10 30分鐘雨強、地面雨滴譜等間隔取樣及在gps引導下的飛機雲物理探測等獲取的三維高時空密度的綜合探測為主體；配合專項設計開發的多路通訊採集存貯系統、多類信息的分析處理平臺、主要觀測項目的分析反演軟體，結合多尺度雲系模式，綜合構成層狀雲系中微尺度探測和分析處理技術方法。
  7. The automobile anti - collision radar is mainly applied to prevent the vehicle from colliding back and force under the fog weather condition with no consideration of the other obstacle ' s anti - collision before the vehicle. it is only designed to achieve its basic application of danger condition detecting and collision warning

    該防撞雷達系統主要是用於高速公路上多霧天氣防止車輛前後追尾相撞，而不考慮車輛與其前方的非車輛障礙物之間的防撞問題，設計只完成最基本的險情探測和預警功能的前視防撞雷達。
  8. The results of the experiments indicate that the main performance of the ladar prototype matches the design requirement theoretically. the ladar prototype has many advantages, such as high imaging speed, high image resolution, high ranging precision and high quality intensity image, which can be obtained simultaneously

    實驗結果表明，所研製的成像激光雷達的主要性能指標與理論設計基本一致，具有成像速率高、圖像解析度高、測距精度高以及可同時獲得高精度強度圖像等優點。
  9. High precision ad chip is used for intermediate frequency data sampling and fpga of virtex - series is used for the implementation of intermediate - frequency orthogonal system, which includes the sequencing control design for mult - channel radar system with verilog, the application of ip core of digital filter and fifo, as well as the communication control module with dsp. as the master control part, the software programming for the communication between dsp and fpga is designed. the experimental result with hardware circuit shows the design is valid and practical

    採用高精度的adc晶元完成中頻采樣，通過virtex -系列fpga設計中頻正交系統，主要包括通過verilog語言實現多路雷達中頻接收的時序控制，通過濾波器ip核實現濾波器的設計，以及利用c語言實現dsp的通訊控製程序設計。並給出了fpga在資源和速度上一些優化的方法，調試過程中影響中頻正交接收性能測試的因素。
  10. Considering the fact that the analog system is not so good as the digital system on the respect of variation of bandwidths and on the respect of switch between different bandwidths. this paper proposes to adopt the dds ( direct digital synthesis ) technique that produces chirp signals of different bandwidths to improve the situation of losing tracks for the ocean satellite altitude indicator in measuring coarse surfaces

    現在的雷達基本上採用模擬系統產生線性調頻信號，由於模擬系統在帶寬變化方面和不同帶寬間切換方面不如數字系統，本文採用dds （ directdigitalsynthesis ）技術產生不同帶寬的線性調頻信號以改善海洋衛星高度計在測量粗糙表面時存在的失鎖現象。
  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. Analysis of ambiguity - function of lfmcw radar, including symmetrical triangular lfmcw signal and multiple periods ’ symmetrical triangular lfmcw signal. 3. this dissertation advances new theories of lfmcw radar signal detection and estimation, including method for acceleration and velocity estimation based on polynomial phase transform ; method for multi - target acceleration and velocity estimation based on modification polynomial phase transform

    包括基於多項相位變換的lfmcw雷達速度和加速度估計方法;基於修正多項相位變換的多目標lfmcw雷達速度和加速度估計方法;基於一般高斯噪聲環境下的lfmcw雷達速度和加速度聯合估計方法;另外提出了基於頻域增采樣內插方法以提高lfmcw雷達測距精度。
  13. The 705d radar is a high - level meteorological sounding radar which is very import in the attracting process of artillery. at present, in the training of radar operator, we use true radar, it " s not only very expensive, but also inefficient. so artillery aerial defense arms bureau of the general arm of services ministry alleged a plan of contriving a training simulate system

    705d型雷達是我炮兵部隊裝備的一種高空氣象探測雷達，它在炮兵部隊的攻擊過程中，起著非常重要的作用，但在目前，對該雷達操作手的培訓中仍然採用真實雷達，不僅花費較大，而且效率較低，因此提出了設計一套模擬訓練系統的計劃。
  14. In the hardware solution, a dual - port high speed communication card was designed to resolve the " data " losing " problem in the communication between the lrf and pc

    在數據輸入模塊中還介紹了作者為解決兩個激光測距雷達和pc機之間的高速數據通信問題所設計的高速數據通信卡。
  15. The some fire control system is an advanced multi - senor short range air defense system, which integrated both x and ka bands searching and tracking radars, laser range finder, combined the control computer of subsystem with the master computer, and applied the technology of data fusion

    摘要某火控系統集兩個頻率波段的搜索雷達、跟蹤雷達和電視跟蹤器、激光測距機於一體，分系統控制處理計算機與系統主計算機相結合，採用了數據融合技術，是一部多傳感器集成的現代化防空系統，具有搜索性能好、反應時間快、抗干擾能力強、自動化程度高、使用性能好等特點。
  16. Seeing that typhoon has brought great harm to mankind, meterological departments of all countries have attached great importance to the forecast and precaution of tropical cyclones. the prompt development and the wide application of the technology of the satellite remote sensing, radar detection, numerical weather forecast. numerical statistics weather forecast and computer simulation forecast in the field of meterological supervision and forecast has enabled people to improve their forecast level greatly

    鑒于臺風對人類造成的巨大的危害，各國氣象部門都十分重視熱帶氣旋的預報預警工作。衛星遙感技術、雷達探測技術、數值預報技術、數值? ?統計預報技術以及計算機模擬預報技術的飛速發展和在氣象監測預報領域的廣泛應用，使人類對熱帶氣旋的監測預報水平得到了大幅度的提高。
  17. The chief purpose of this paper is to design a new multi - sensor fusion algorithm which can be used by hfgwsr under the clutter environment, which should meet the requirement of real - time processing

    本論文的主要目的是設計一種可以滿足強雜波背景下觀測精度較低的高頻地波雷達應用的多傳感器融合演算法，並保證演算法滿足實時性要求。
  18. The constructionspeed of highwayincreases rapidly, at the same time, the path qualityexaminationdutyaggravatesdaybyday, andtheload ofroads evaluationalsoincreases quicklyin the maintenance. traditional method has many disadvantages, such asinefficiency, tiring, slow speed of evaluation etc. especially, the number ofmeasuring point is too little to give accurate and comprehensive result of theinterior recessive diseases of highway. beside this, the traditional method leadsdestructiontotheroadsurface, whichwillexacerbatethedeteriorationofhighway. in avoid not to affecting the normal travel and not to destroying the pavementstructure, it is urgently to apply nondestructive evaluation ( nde ) techniques tocontrol quality of highway construction and to estimate the running conditionaccurately. the nde techniques of highway have to satisfy the followingqualification : mapping the shape, size and depth of flaw precisely ; having nodamages to the road structure ; being capable of carrying out examination in widerange ; beingeasytoequipandoperate ; beinginsulatetotheenvironmentinfluence. theintelligenceintegrationevaluationvehicleforroadbedandpavement ( iievrp ) is just the comprehensive nde technique that can satisfy the demands above, which can implement detection of highway rapidly and nondestructively

    作為吉林省科技廳高新技術項目（ 20020331 ） 「路基路面智能集成檢測車」的一個子項，本文在理論的基礎上，結合實驗對探地雷達檢測路面結構層厚度及路基、路面病害進行了研究，主要工作如下: 1 .闡述探地雷達發展的歷史和研究現狀，介紹探地雷達在路面結構層厚度檢測與路基、路面病害識別上的應用，分析探地雷達設備性能，探討其測量參數對探測性能的影響; 2 .引入matlab計算軟體，利用其中的小波分析工具箱對探地雷達信號進行分析處理; 3 .構建適于道路檢測的車載實驗平臺，為進一步完善路基路面檢測車系統打下了基礎; 4 .通過對模型的檢測，對探地雷達探測性能做出定性或半定量的評價; 5 .通過對實際路面的檢測，驗證探地雷達在道路檢測中的有效性。
  19. The radar level indicator is a non - contact high - precision one and has the advantages of precision in measurement, high efficiency and simplicity in installation

    摘要雷達料位計是一種非接觸式的高精度液位儀表，具有測量精確、效率高、安裝簡單等特點。
  20. The star calibration system, which is one of methods to calibrate precision and adjust tolerance of tracing and measuring devices in fields, has been widely applied to high precision tracing and measuring devices such as photoelectric theodolites, radars, etc. combining with many researching fields such as astronomy, computer control technology, communication, science engineering algorithm, etc, star calibration software have characteristics of large size, long development period, etc, but their inherent coherence and constant establish the base of abstract and reuse

    星體標校系統是實現跟蹤測量設備外場精度標校和誤差調整的方法之一，廣泛應用於光電經緯儀、雷達等高精度跟蹤測量設備中。星體標校軟體集天文、計算機控制技術、通訊、科學工程計算等眾多知識領域，具有軟體規模大，開發周期長等特點，但其本身存在一致性和不變性，奠定了它們的可抽象性和可復用性的基礎。
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