Synthetic aperture radar ( sar ) has the characteristic of all - weather , day / night and long range , so it is of great value to study on real - time processing for sar imaging in both civilian and military applications 合成孔徑雷達(dá)成像具有全天候、全天時(shí)和遠(yuǎn)距離的特點(diǎn),因此合成孔徑雷達(dá)成像實(shí)時(shí)信號(hào)處理的研究對(duì)軍用和民用均具有重要的實(shí)用價(jià)值。
Since the application of synthetic aperture radar ( sar ) images became more and more extensive , many fields of application are demanding not only qualitative but also quantitative information from sar images 隨著合成孔徑雷達(dá)遙感應(yīng)用的日益廣泛和深入,許多應(yīng)用領(lǐng)域不僅要求從sar圖像獲得定性的遙感信息,而且希望從sar圖像中提取定量的遙感信息。
Synthetic aperture radar ( sar ) imaging technique is related with electronic engineering , computer science and digital signal processing . the appearing and development of sar enlarge the traditional radars ? application 合成孔徑雷達(dá)( sar : syntheticapertureradar )成像技術(shù)是雷達(dá)技術(shù)、現(xiàn)代電子技術(shù)和數(shù)字信號(hào)處理技術(shù)的有機(jī)結(jié)合,它使傳統(tǒng)雷達(dá)的功能發(fā)生了質(zhì)的飛躍。
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(jī)載合成孔徑雷達(dá)中,天線穩(wěn)定平臺(tái)用于隔離載機(jī)的姿態(tài)變化和機(jī)械振動(dòng)對(duì)天線指向的影響,并通過(guò)伺服系統(tǒng)控制平臺(tái)支承軸的轉(zhuǎn)動(dòng)穩(wěn)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(lái),利用合成孔徑雷達(dá)( sar )圖像進(jìn)行艦船檢測(cè)與監(jiān)視的研究和技術(shù)開(kāi)發(fā)在海洋遙感領(lǐng)域得到高度重視,成為sar數(shù)據(jù)最重要的海洋應(yīng)用之一。
Interferometric synthetic aperture radar ( insar ) can provide accurate digital three - dimensional topographic measurement in all weather conditions day and night . it has been a hot topic in the area of synthetic aperture radar ( sar ) in recent years 干涉合成孔徑雷達(dá)能夠全天時(shí)、全天候獲取高精度的數(shù)字化三維地形數(shù)據(jù),近年來(lái)成為合成孔徑雷達(dá)( sar )領(lǐng)域中一個(gè)十分活躍的研究熱點(diǎn)。
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(cè)量將干涉sar和極化sar測(cè)量技術(shù)相結(jié)合,能提高干涉測(cè)量精度并能更好地解釋目標(biāo)的散射機(jī)理,近幾年來(lái)已成為一種新興的前沿技術(shù)。
A brief introduction of synthetic aperture radar ( sar ) and the application of sar image data in the research of crest length distribution is introduced . the method to compute the action of random waves with different crest lengths on vlfs . is also reviewed 對(duì)星載合成孔徑雷達(dá)及其在波峰長(zhǎng)度統(tǒng)計(jì)特性研究中的應(yīng)用以及不同波峰長(zhǎng)度海浪對(duì)超大型海上結(jié)構(gòu)物的作用作了一個(gè)簡(jiǎn)單的介紹,闡明了下一步的研究工作的思路。
Finally , the transitional pixels are further classified by employing region growing technique . the second approach aims to segment synthetic aperture radar ( sar ) image . different from the former one , cluster method is used to obtain coarse segmentation in fuzzy domain 在這兩種方法中,都是先利用灰度級(jí)信息獲取圖像的粗分割結(jié)果,然后再結(jié)合空間位置信息得到精確的分割結(jié)果,從而使分割算法表現(xiàn)出了很好的實(shí)時(shí)性和健壯性。
In synthetic aperture radar ( sar ) and inverse sar ( isar ) imaging , most image algorithms are based on the model of standard scattering centers . but the scattering of targets is complexity , the standard scattering centers model cannot describe all scattering centers of target 大部分雷達(dá)二維成像算法都是基于理想散射中心模型的,而真實(shí)目標(biāo)散射的復(fù)雜性使之無(wú)法滿(mǎn)足理想散射中心模型的假設(shè)條件,它包含了許多非理想的散射中心。