基于隱馬爾可夫模型的多孔徑SAR目標(biāo)檢測(cè)
HIDDEN MARKOV MODELS FOR MULTI-APERTURE SAR TARGET DETECTION
-
摘要: 穿透葉簇的VHF/UHF超寬帶(UWB)SAR具有相對(duì)帶寬很寬，積累角大的特點(diǎn)，可同時(shí)獲得距離、方位兩個(gè)方向的高分辨能力，能用于探測(cè)葉簇隱蔽的軍用車(chē)輛等人造目標(biāo)而有著重要的軍事應(yīng)用價(jià)值。在多孔徑SAR成像的基礎(chǔ)上，本文用隱馬爾可夫模型對(duì)人造目標(biāo)和葉簇等雜波建模，可有效地檢測(cè)目標(biāo)，實(shí)現(xiàn)一個(gè)ATR系統(tǒng)的預(yù)篩選處理。Abstract: Foliage penetrating VHF/UHF Ultra-WideBand (UWB) SAR can image hidden man-made targets such as military vehicles with wide-angle and ultra-wideband to achieve high resolutions in both range and azimuth, which has great military application value. Exploiting several multi-aperture SAR images, HMMs for man-made object and foliage clutter are developed separately in the paper, which can be utilized in detecting targets effectively to realize the pre-screening process in a ATR system.
-
Flake L R, et al. Progress report: Multi-aperture SAR target detection using hidden Markov models. Technical Report TR-94-02, The Ohio State University, SPANN Laboratory, November,1994.[2]Kapoor R, Nandhakumar N. Multi-aperture ultra-wideband SAR processing with polarimetric variety[J].SPIE.1995, 2487:26-37[3]Halverson S D,et al. A comparison of ultra-wideband SAR target detection algorithms[J].SPIE.1994, 2230:230-243[4]蔣詠梅．UWB葉簇覆蓋SAR人造目標(biāo)模型．技術(shù)報(bào)告，長(zhǎng)沙：國(guó)防科技大學(xué)電子工程學(xué)院，1997．[5]謝錦輝．隱Markov模型(HMM)及其在語(yǔ)音處理中的應(yīng)用．武漢：華中理工大學(xué)出版社，1995：1-46. -
計(jì)量
- 文章訪(fǎng)問(wèn)數(shù): 2232
- HTML全文瀏覽量: 105
- PDF下載量: 459
- 被引次數(shù): 0
下載:
