A two dimensional overlapped subaperture polar format algorithm based on stepped-chirp signal

被引：6

作者：

Mao, Xinhua ^{[1
]}

Zhu, Daiyin ^{[1
]}

Nie, Xin ^{[1
]}

Zhu, Zhaoda ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Dept Elect Engn, Nanjing 210016, Peoples R China

来源：

SENSORS | 2008年 / 8卷 / 05期

关键词：

synthetic aperture radar (SAR); subaperture; synthetic bandwidth; stepped-chirp signal; space-variant phase compensation;

D O I：

10.3390/s8053438

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this work, a 2-D subaperture polar format algorithm (PFA) based on stepped-chirp signal is proposed. Instead of traditional pulse synthesis preprocessing, the presented method integrates the pulse synthesis process into the range subaperture processing. Meanwhile, due to the multi-resolution property of subaperture processing, this algorithm is able to compensate the space-variant phase error caused by the radar motion during the period of a pulse cluster. Point target simulation has validated the presented algorithm.

引用

页码：3438 / 3446

页数：9

共 9 条

[1] Airborne X-band SAR imaging with 10 cm resolution: technical challenge and preliminary results [J].

Cantalloube, H ;

Dubois-Fernandez, P .

IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION, 2006, 153 (02) :163-176

[2]

Carrara W. G., 1995, SPOTLIGHT SYNTHETIC

[3]

DOERRY AW, 1994, SYNTHETIC APERTURE R, P1210

[4] PAMIR - a wideband phased array SAR/MTI system [J].

Ender, JHG ;

Brenner, AR .

IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION, 2003, 150 (03) :165-172

[5]

INGGS MR, 1992, SIMULATION SYNTHETIC, P1

[6]

Jakowatz C. V., 1996, Spotlight-Mode Synthetic Aperture Radar: A Signal Processing Approach

[7]

LORD RT, 1997, IEEE T GEOSCI REMOTE, V1, P490

[8] High range resolution by means of synthetic bandwidth generated by frequency-stepped chirps [J].

Schimpf, H ;

Wahlen, A ;

Essen, H .

ELECTRONICS LETTERS, 2003, 39 (18) :1346-1348

[9]

WILKINSON AJ, 1998, STEPPED FREQUENCY PR, P101

← 1 →