水下探測 的英文怎麼說
中文拼音 [shuǐxiàtàncè]
水下探測
英文
undersea detection- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 下 : 下動詞1. (用在動詞后,表示由高處到低處) 2. (用在動詞后, 表示有空間, 能容納) 3. (用在動詞后, 表示動作的完成或結果)
- 探 : Ⅰ動詞1 (試圖發現) try to find out; explore; sound 2 (看望) call on; visit; see 3 (向前伸出)...
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 探測 : survey; search; sound; probe; sounding; detection; acquisition; reconnaissance; localization; fin...
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Multi - target localization is the urgent requirement of exploration system in underwater weapon, which is the basis of anti - counterwork, target recognization, and accurate attack
多目標定位是水下武器探測系統迫切需要具備的能力,它是反對抗、目標識別、精確打擊的基礎。The dissertation has upstanding reference value to underwater geomorphological measurement system, for instance reservoir region, lakes, as well as measuring the flotage and underwater precipitation
本論文對於水庫、湖泊等水下地形地貌測量具有良好的參考價值,也可用於海洋探測及對水中漂浮物或水下沉澱物的測量。In perhaps the most unusual proposal of all, scientists from nasa ' s jet propulsion laboratory ( jpl ) in california are proposing to build a probe that uses heated water jets to descend to depths of up to a hundred meters through the frozen ice caps at the martian poles inn search of organic matter
在或許是最不一般的建議的倡導下,加利福尼亞州航空航天局噴氣推進實驗室( jpl )的科學家們正在計劃建造一臺探測器,使用熱水射流穿透火星極地的冰帽,深入到100米以下,搜尋有機物質。The experimental data are in good agreement with the calculated results of the model by analysis of the data of the laser pulse of different energy induced the laser plasma shock front by acoustics means. in addition, the calculated results of the model are in good agreement with the experimental data by optics means
同時設計應用聲學方法對水中不同能量的脈沖激光作用下產生的激光等離子體沖擊波波前傳播過程進行測試及數據分析,對光學陰影方法探測的激光等離子體沖擊波近場波前傳播數據進行詳細分析,結果表明新模型計算結果與實驗測量值一致。The high sensitive infrared detection and the telecamera with telescope are installed on the satellite. the infrared detection can detect the enemy missile ’ s infrared radiation and sound alert signal when the missile flies upward after it ’ s launched from on the surface or underwater
衛星上裝有高靈敏度的紅外探測器和帶望遠鏡頭的電視攝像機,在敵方從地面或水下發射導彈后數十秒內,紅外探測器即可探測到導彈上升段飛行期間發動機尾焰的紅外輻射,並發出警報。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 ) 。Nonlinear model based predictive control ( nmpc ) not only is a valuable approach for solving practical control problems, but also is the frontier of nonlinear control theory. the perceptible successes of mpc strategies can be attributed to several factors including its inherent ability to handle input and output constraints, time delay and incorporation of an explicit model of the plant into the optimization problem. this dissertation discusses two kinds of nonlinearity ( or nonlinear system )
本文沿著理論研究與工程實際相結合的設計思路,較為系統和全面的研究了非線性模型預測控制理論,提出改進新演算法;探討了非線性模型預測控制理論在自主水下航行器控制系統設計中的應用,豐富和發展了模型預測控制理論,本論文的主要工作及意義有以下幾個方面: 1 )從工程應用的角度研究有限域無終端約束廣義預測控制穩定性充分條件,為有約束廣義預測控制穩定性研究奠定了基礎。The method and conclusion in this thesis are very useful for the design of towed underwater detect device
本論文的方法和結論對于拖曳式水下探測器的設計和研究具有重要的參考價值。As a detecting device working underwater, the synthesize aperture sonar is fixed in the underwater carrier
作為水下探測器的一種,該系統的水下探測部分載體內承裝的是合成孔徑聲納系統。To study blue - green laser light scattering and polarization status changes in the ocean, is used to resolve the relative problem of optical communication, detection and imaging under water. in the paper, sea water characteristic of absorption and scatter - ing, and intrinsic optical character and extrinsic optical character of sea water are summed up ; the scattering theories of sea water, including rayleigh scattering, mie scattering by spherical particles and polarization theories of mie scattering, are described in detail
研究藍綠激光在海水中的散射特性以及由散射引起的退偏現象,是為了解決水下通信、探測、成像的相關問題。本文綜述了海水對光的吸收、散射特性以及海水的內在光學性質和外在光學性質;詳細介紹了海水的散射理論,包括瑞利散射、 mie散射以及mie散射的偏振理論。With the increasing requirements for detecting distance, photoelectric module, including light source and modulation, can be put under water to reduce the loss of light power in the optical fiber transmission and transmit the detected signal to the signal processing workstation on the shore. optical transceivers must be applied to realize the low - rate optical communication between the workstation on the shore and the long - distance photoelectric modules under water
隨著光纖水聽器陣列技術的發展,可將光源與調制部分作為遠程光電模塊置於水下,減少光纖傳輸過程中光波信號的損耗,而直接將光纖的探測信號傳回岸基工作站進行處理,以增加光纖水聽器的探測距離。Groundwater level prediction is also a very important field in groundwater environment prediction. land subsidence, encroachment of sea water and deterioration of water quality and so on by artificial development have relation to sustained drop of groundwater level. after groundwater level change mechanism was analyzed, the establishment method of groundwater level prediction regression analysis model was explored. and the groundwater level development trend of some planning region with the model was predicted according to its change characters of groundwater level, wath ' s more, the prediction results was analyzed
地下水位的預測也是地下水環境預測的重要內容,地下水在開采過程中所產生的地面沉陷、海水入侵、水質惡化等現象均與地下水位持續下降有關,本文在對地下水位變化機理分析的基礎上,探討了地下水水位預測回歸分析模型的建立方法,並針對某規劃區地下水位變化的特點,應用該模型對該規劃區地下水位發展趨勢進行了預測,並對預測結果進行了分析。Based on many references form civil and abroad, the author mainly studies the measurment theory and method for flux, raising height, axial power and rotational velocity. avoiding many complicated and intermediate courses for power wastage analysis, introduces the electric measurement and using efficiency curve of motor in measureing axial power, and satisfies the automatization of the device. the paper also provides a new method, inductive winding, in measuring rotational velocity of electromotor, supplys limitations of other method in measuring rotational velocity of electromotor in water, and meet practical needs in developing diving electric pump for corporation
作者在參閱大量國內外有關文獻,著重探討了水泵流量、揚程、軸功率、轉速的測試原理和測試方法,提出了採用電測法並結合電機效率特性曲線測量水泵軸功率,從而避免了損耗分析法中大量復雜的中間過程,滿足了試驗裝置的自動化測量要求;採用漏磁感應線圈法測量電機轉速,彌補了其它轉速測量方法對水下電機測試的局限性,適應了萊恩公司開發潛水電泵的實際需要。( 5 ) mfpic ( matched field postbeamformer interference canceller ) is proposed to cancel tow ship ' s noise. the advantage of mfpic is that it can be used to cancel the tow ship ' s noise for all arrival directions. furthermore, this new approach can be used to detect weak target, which has the same bearing angle of a strong interference
( 5 )將平面波波束形成后干擾抵消與匹配場處理技術進行有機結合,探索性地提出了拖線陣聲納本艦干擾的匹配場抵消方法和匹配場處理后的干擾抵消方法,為本艦多途干擾抵消、水面強干擾抑制和水下弱目標檢測提供了新的技術途徑。Underwater detection and classification system
水下探測與分類系統As the most important information sources, video information became one of the focuses in the research of underwater objects " detection
其中,圖象信息作為主要信息來源成為水下探測技術研究的焦點之一。Underwater acoustic imaging teclmology has played an irreplaceable role in many situations. wth wide applying foreground, it has been paid more attention
水下聲成像技術在水下探測領域中的諸多場合發揮著不可替代的作用,具有廣泛的應用前景,日益得到人們的重視。The underwater acoustic signal is the main information for the underwater detection and identification system, so it is very important to get the acoustic signal efficiently
摘要水下聲信號是水下探測系統實現對水中目標遠程探測識別的主要信息之一,有效獲取水下聲信號是一個十分重要的問題。With the progressive development of underwater acoustic detection and acoustic - guided weapons, more advanced requirements are imposed upon the acoustic properties of submarines
隨著水聲探測潛艇的手段和方法以及帶有聲制導的水下武器的不斷完善,對潛艇的聲學性能的要求越來越高。Standard practice for low - flow purging and sampling for wells and devices used for ground - water quality investigations
地下水質探測用井和裝置的低流量凈化和取樣的標準實施規程分享友人