A new fourth-order processing algorithm for spaceborne SAR

被引：116

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

页码：824 / 835

页数：12

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