synthetic aperture 中文意思是什麼
synthetic aperture
解釋
合成孔徑-
He baoyu ( aerocraft design ) directed by wu ji synthetic aperture technology in radio astronomy is introduced into microwave radiometer since 1980 ' s
八十年代以來，為改善微波輻射計性能，人們將射電天文觀測中的孔徑綜合技術引入到微波輻射計設計中，開始了綜合孔徑輻射計的研究。 -
A bathymetry precept using synthetic aperture is raised in chapter four, which combines both synthetic aperture and bathymetry technologies to get three dimension image of target area
考慮將合0哈爾濱工程大學博士學位論文一成孔徑技術和測深結合來得到目標區的三維圖像。 -
It has important value in military and civil. conventional algorithms for synthetic aperture radar uses the matched filter and convolves the data with a reference phase signal which changes with range
合成孔徑雷達（ sar ）是二戰后發展起來的一種新的雷達技術，在軍事和民用方面都有重要的應用價值。 -
Polarimetric synthetic aperture radar interferometry is a potential technique, which not only improves the accuracy of the interferometric measurements but also allows a more sophisticated physical interpretation of scattering mechanism
極化干涉測量不僅能夠提高常規sar干涉測量的精度，而且有助於更好的理解目標的散射機理和所發生的散射過程。 -
Polarimetric synthetic aperture radar ( sar ) interferometry, which combines sar polarimetry with sar interferometry, can improve the measurement precision of interferometric sar and enhance the ability to explain the scattering mechanisms of targets
極化sar干涉測量將干涉sar和極化sar測量技術相結合，能提高幹涉測量精度並能更好地解釋目標的散射機理，近幾年來已成為一種新興的前沿技術。 -
Polarimetric synthetic aperture radar ( polsar ) investigates the transverse vectorial nature of plane em waves and provides the complex scattering matrix of a scatterer. scattering polarimetry is sensitive to the shape, orientation, and dielectric properties of scatters
極化合成孔徑雷達（ polsar ）研究電磁波的矢量特徵，通過測量和分析目標的極化散射特性，獲取目標的介電常數、物理特性、幾何形狀和取向等方面的大量信息。 -
Synthetic aperture radar ( sar ) is a kind of coherent pulse radar which appeared in 1950. it can improve space resolution by fully using the signals " coherence
合成孔徑雷達（ sar ： syntheticapertureradar ）是20世紀50年代發展起來的一種相干雷達。 -
Airborne synthetic aperture radar ( sar ) is a kind of active remote sensor, which works in the microwave band and takes aircraft as the working platform
機載合成孔徑雷達是一種以飛行器為平臺，工作在微波波段的主動式遙感器。 -
To improve this ability, a higher cross - range resolution is needed. an inverse synthetic aperture radar ( isar ) achieves high resolution in the cross - range dimension by taking advantage of the motion between radar and targets to synthesize the effect of a larger antenna aperture
逆合成孔徑雷達（ inversesyntheticapertureradar ，簡稱isar ）信號處理對接收到的運動目標的回波信號進行相干處理，等價成一個大口徑天線，很大程度上提高了方位向距離分辨力。 -
Because the synthetic - aperture radar can ’ t be influenced by the weather and it can accomplish high graphics reconnaissance for the landform, establishment and immovable or slowly - speeding target in the area of mapping. so it has the important martial value. this had been testified in the series of brushfire in these years
由於合成孔徑雷達（ synthetic - apertureradar ）可以不受氣象影響，對測繪區的地形、設施、固定和低速運動目標完成高分辨的成像偵察，因此具有重要的軍事應用價值，這在近年來的多次局部戰爭中得到了充分的驗證。 -
Based on the doppler effect and pulse coherence technique, synthetic aperture radar ( sar ) breaks through the azimuth resolution limitation imposed by real aperture antenna. in combination with the pulse compression technique, two - dimensional high resolution imagery to distant targets can be realized
合成孔徑雷達（ sar ）利用以多普勒頻移理論和脈沖相參為基礎的合成孔徑技術，突破了實孔徑天線對方位向分辨力的限制，與脈沖壓縮技術相結合，實現了遠距離目標的二維高分辨成像。 -
The thesis reviews the theory which is the basis of synthetic aperture processing and introduces five algorithms of image reconstruction : the coherent addition provides a good opportunity for the real time sas ; the envelope processing can work when sonar echo returns lack phase coherence ; the i - q processing can reduce the sampling rate ; the broadband and ctfm processing are both aimed to increase the sas mapping rate
討論了用於重構圖象的五種演算法，包括簡單的可進行實時處理的相關合成法，可以在缺乏相位信息時使用的包絡處理法，可以降低采樣率、減少運算量、存儲量的正交處理法，可以提高聲納運行速度，從而提高成象率的寬帶處理法和ctfm法等五種演算法。 -
The data compression technique is an essential one of synthetic aperture radar ( sar )
數據壓縮技術是合成孔徑雷達（ sar ）必須具備的關鍵技術之一。 -
A study on synthetic aperture sonar movement compensation based on displaced phase center algorithm
基於位移相位中心演算法的合成孔徑聲納運動補償研究 -
Synthetic aperture radar has all ? eather and high ? esolution capabilities and has been highly developed in recent years
合成孔徑雷達（ sar ）具有全天候和高分辨能力，近年來它得到了快速的發展。 -
The multiscale mixed distribution models ( mmdm ) and the multiscale autoregressive ( mar ) models are investigated in this thesis, and they are applied to the unsupervised segmentation of the synthetic aperture radar ( sar ) image by joining them together - the multiscale mixed distribution models as the feature extractor and the multiscale autoregressive models as the classifier
本文對多尺度混合分佈模型（ multiscalemixturedistributionmodels簡記mmdm ） ，其中主要是對多尺度混合gauss分佈模型（ multiscalemixturegaussianmodels簡記mmgm ）和多尺度混合rayleigh分佈模型（ multiscalemixturerayleighmodels簡記mmrm ）進行了研究，及對多尺度自回歸（ multiscaleautoregressive簡記mar ）模型進行了研究，並將mmdm作為圖像分割的分類器， mar模型作為圖像分割的特徵提取器對合成孔徑雷達（ syntheticapertureradar簡記sar ）圖像無監督分割進行了研究。 -
In airborne synthetic aperture radar ( sar ), antenna stabilization platform is used to isolate antenna pointing, which is stabilized through controlling the platform axis ' rotation, from the vehicle ' s varying attitude and dynamical vibration
摘要機載合成孔徑雷達中，天線穩定平臺用於隔離載機的姿態變化和機械振動對天線指向的影響，並通過伺服系統控制平臺支承軸的轉動穩定波束指向。 -
In recent years, ship detection and surveillance in synthetic aperture radar ( sar ) images has received considerable attentions in the area of marine remote sensing. this issue has been one of the most important marine applications of sar data
近年來，利用合成孔徑雷達（ sar ）圖像進行艦船檢測與監視的研究和技術開發在海洋遙感領域得到高度重視，成為sar數據最重要的海洋應用之一。 -
Synthetic aperture radar ( sar ) is one of the most advanced imaging sensors
聚束式合成孔徑雷達是一種具有超高分辨力的雷達成像模式。 -
Synthetic aperture radar ( sar ) is a new type of radar system developed since 1950 ' s. it breaks through the resolution limitation imposed by real aperture. with pulse compression technology, two - dimensional high resolution to distant targets can be realized
合成孔徑雷達（ sar ）是五十年代發展起來的一種新型雷達體制，它利用合成孔徑原理，突破了實孔徑天線對解析度的限制，並結合脈沖壓縮技術，可以對遠距離目標進行方位向和距離向兩維高分辨成像。
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