中英
1
- Synthetic aperture radar ( sar ) is an active microwave remote sensor , which has the high azimuth resolution by using the theorem of synthetic aperture . because of its widely application in military and civilian synthetic aperture radar has received more and more recognition
合成孔徑雷達(dá)是主動(dòng)式微波成像雷達(dá),是利用信號(hào)處理技術(shù)以小的真實(shí)孔徑天線達(dá)到高分辨率成像的雷達(dá)系統(tǒng),由于其在民用和軍事方面的應(yīng)用,越來越受到廣泛的關(guān)注。 - Synthetic aperture radar ( sar ) , as a high resolution microwave instrument , has an important status in the remote sensing . its ability to image large planetary areas in all weather during day and night makes it progressed in the space to earth observation applications
合成孔徑雷達(dá)作為一種高分辨率的微波遙感設(shè)備，在遙感成像領(lǐng)域有著舉足輕重的地位，它全天時(shí)、全天候、大面積成像的工作能力使它在空間對(duì)地探測(cè)方面有了深入的發(fā)展。 - Synthetic aperture radar ( sar ) is an active microwave remote sensing imaging system , which is widely used in earth observation and military detection due to its quality of working all day , all weather and its penetration ability in certain frequency band
合成孔徑雷達(dá)( sar )是一種主動(dòng)式成像雷達(dá),由于它具有全天時(shí)、全天候的監(jiān)測(cè)特性,并且在一定波段對(duì)植被、淺層土壤具有穿透能力,因此被廣泛應(yīng)用于農(nóng)林、地質(zhì)、水文、海洋與環(huán)境監(jiān)測(cè)、國防等領(lǐng)域。 - 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(dá)( sar )是五十年代發(fā)展起來的一種新型雷達(dá)體制，它利用合成孔徑原理，突破了實(shí)孔徑天線對(duì)分辨率的限制，并結(jié)合脈沖壓縮技術(shù)，可以對(duì)遠(yuǎn)距離目標(biāo)進(jìn)行方位向和距離向兩維高分辨成像。 - This dissertation is a part of the research project , " millimeter wave synthetic aperture radar ( sar ) " , which is the pre - researchful item of the elelctric 10th institute of ministry of information industry . it ' s aim is to improve performance of stop - band of waveguide band - pass filter ( bpf )
本論文工作是中國電子科技集團(tuán)公司第十研究所“十五”預(yù)研項(xiàng)目“毫米波合成孔徑雷達(dá)”中的一部分。要求對(duì)目前的e面全金屬膜片波導(dǎo)濾波器進(jìn)行改進(jìn)，提高其阻帶性能。 - Synthetic aperture radar ( sar ) is a kind of high resolution imaging radar , which has been developed since world war ii . high - resolution radar image can be obtained under all weather , day - and - night and long distance conditions , so it is of high value in military and civil applications
合成孔徑雷達(dá)( sar )是二戰(zhàn)以后發(fā)展起來的一種高分辨力成像雷達(dá)，它可以全天候、全天時(shí)、遠(yuǎn)距離地得到類似光學(xué)照相的高分辨力圖像，在軍事和民用方面都具有重要的應(yīng)用價(jià)值。 - The synthetic aperture radar ( sar ) is one of important remote sensing radars used in many fields . sar image speckle reduction and compression is very important in enhancing the apprehension of sar image and in reducing the costs of data storage and transmission of sar image
合成孔徑雷達(dá)作為一種重要的遙感成像雷達(dá)在很多領(lǐng)域有廣泛的應(yīng)用，合成孔徑雷達(dá)圖像的相干斑噪聲抑制和壓縮算法對(duì)于提高圖像的研究利用價(jià)值，以及數(shù)據(jù)的存儲(chǔ)和傳輸效率是非常重要的問題。 - Terrain slope information can be drawn from polarimetric synthetic aperture radar ( sar ) two - dimensional image , so that three - dimensional image can be generated . it differs from two - pass or repeated trace insar that uses interference phase method to obtain topography height . the p - sar three - dimensional image technology uses the stokes matrix formed by two - dimensional images resolution cells , then applying polarimetric synthesize to stokes matrix can produce polarization signature of the scatter cross - section a - ( , x ) for any ( ellipticity ) and ( orientation ) polarization state
這種方法不同于重復(fù)軌道和雙通道insar系統(tǒng)，不是利用干涉法提取高度信息，而是利用極化sar二維圖像各分辨單元的stokes矩陣，通過極化綜合估計(jì)每個(gè)分辨單元的共極化散射特性和交叉極化散射特性(極化指紋) ，以及共極化散射特性最大值時(shí)對(duì)應(yīng)的極化橢圓度x利極化橢圓方向角，求解地形的高度輪廓。 - Synthetic aperture radar ( sar ) is a kind of high resolution imaging radar , which has been developed since world war . high - resolution radar image can be obtained under all weather , day - and - night and long distance conditions , so it is applicated abroad both in military and civilian fileds
合成孔徑雷達(dá)( sar , syntheticapertureradar )是二戰(zhàn)后發(fā)展起來的一種高分辨力成像雷達(dá),它可以全天候、全天時(shí)、遠(yuǎn)距離地得到類似光學(xué)照相的高分辨力圖像,在軍事和民用方面都得到了廣泛的應(yīng)用。 - Synthetic aperture radar ( sar ) is a kind of active microwave imaging radar . it can all - weather , all - day and timely get ground images of wide region and has fine penetrability to vegetation and ground . sar is pretty important to resources exploitation and military reconnaissance
合成孔徑雷達(dá)是主動(dòng)式微波成像雷達(dá),能全天候、全天時(shí)、實(shí)時(shí)獲取大地域的地面圖像,具有良好的植被和地面穿透能力,對(duì)資源探測(cè)和軍事偵察等有重大意義,尤其是目前高分辨sar技術(shù)的出現(xiàn),由于其具有高分辨率、強(qiáng)抗干擾、低截獲性的特點(diǎn)已廣泛應(yīng)用于民用和軍事領(lǐng)域。
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