動目標(biāo)合成孔徑雷達(dá)成象的二次相位匹配濾波法
A MATCHING FILTER METHOD OF THE QUADRATIC PHASE FOR MOVING TARGETS IMAGING IN SAR
-
摘要: 本文針對合成孔徑雷達(dá)運動目標(biāo)回波的特點,引入多普勒調(diào)頻率匹配濾波方法,解決由于運動目標(biāo)成像二次相位失配而引起的方位散焦問題,提出了一種適合快速處理的離線式的匹配矩陣結(jié)構(gòu),計算機模擬得到運動目標(biāo)聚焦良好的圖象。Abstract: Based on the analysis of SAR radar return model, an approach using Doppler-rate matching filter is proposed. It can solve the problem of azimuth defocus because of the quadratic phase mismatch. Then a fast algorithm structure given by matching matrix is presented. The computer simulation results illustrate its availability.
-
R.aney R K. IEEE Trans on AES, 1971, AES-7(3): 499-505.[2]Freeman A, Currie A. The GEC Journal of Research, 1987, 5(2): 106-115.[3]何峻湘.動目標(biāo)合成孔徑雷達(dá)檢測與成象:[碩士論文],北京航空航天大學(xué),1994年3月. -
計量
- 文章訪問數(shù): 2054
- HTML全文瀏覽量: 127
- PDF下載量: 496
- 被引次數(shù): 0
下載:
