A new fourth-order processing algorithm for spaceborne SAR

被引：112
|
作者：
Eldhuset, K [1 ]
机构：
[1] Norwegian Def Res Estab, Div Elect, N-2007 Kjeller, Norway
来源：
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS | 1998年 / 34卷 / 03期
关键词：
D O I：
10.1109/7.705890
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A new fourth-order signal aperture radar (SAR) processing algorithm has been developed for a general satellite-Earth relative motion. The two-dimensional exact transfer function (ETF) is calculated and range-variant phase corrections have been calculated in order to process many azimuth lines per block. The ETF together with the phase corrections has been called the fourth-order EETF (extended ETF), It is also shown that a fourth-order EETF is necessary to process high quality images from spaceborne SAR with long integration times with spatial resolution around 1 m. The algorithm is fast and is anticipated to have good phase preservation properties.
引用
收藏
页码：824 / 835
页数：12
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