Focusing of bistatic SAR data

2014 ◽  
Author(s):  
Pietro Bia ◽  
Nicola Ricci ◽  
Mariantonietta Zonno ◽  
Giovanni Nico ◽  
Joao Catalao ◽  
...  
Keyword(s):  
Bistatic Sar ◽  
Sar Data

Bistatic SAR Data Focusing Using a Frequency Scaling Algorithm Based on an Analytical Spectrum in Tandem Configuration

2011 ◽  
Vol 33 (6) ◽  
pp. 1447-1452
Author(s):  
Shi-chao Chen ◽  
Qi-song Wu ◽  
Ming Liu ◽  
Meng-dao Xing ◽  
Zheng Bao
Keyword(s):  
Frequency Scaling ◽  
Tandem Configuration ◽  
Bistatic Sar ◽  
Sar Data

scholarly journals Processing the Non-parallel Bistatic SAR Data by Using Chirp-z Transform

2018 ◽  
Vol 232 ◽  
pp. 01059
Author(s):  
Jinhe Ran ◽  
Yang Shen ◽  
Xiuhe Li
Keyword(s):  
Reference Function ◽  
Imaging Algorithm ◽  
Bistatic Sar ◽  
Sar Data ◽  
Phase Term

A new analytical imaging algorithm based on Chirp-z transform (CZT) for focusing non-parallel bistatic SAR data is proposed. The reference function multiplication (RFM) is firstly performed to finish the bulk focusing. Then the phase terms of spectrum are decomposed into range phase term and azimuth phase term, and their space-variances are eliminated by CZT independently to finish the differential focusing. The algorithm can be applied to wide scene imaging, and its effectiveness is verified by simulations.

A two-step method to process bistatic SAR data in the general configuration

2008 ◽  
Author(s):  
Robert Wang ◽  
Otmar Loffeld ◽  
Holger Nies ◽  
Qurat Ul-Ann ◽  
Amaya Medrano Ortiz ◽  
...  
Keyword(s):  
Step Method ◽  
Bistatic Sar ◽  
Sar Data ◽  
General Configuration

scholarly journals Focusing of tandem bistatic SAR data using range Doppler algorithm

2014 ◽  
Author(s):  
Qisong Wu ◽  
Yimin D. Zhang ◽  
Moeness G. Amin ◽  
Braham Himed
Keyword(s):  
Bistatic Sar ◽  
Sar Data

scholarly journals Focusing of Spotlight Tandem-Configuration Bistatic Data with Frequency Scaling Algorithm

2016 ◽  
Vol 2016 ◽  
pp. 1-15
Author(s):  
Shichao Chen ◽  
Ming Liu ◽  
Jun Wang ◽  
Fugang Lu ◽  
Mengdao Xing
Keyword(s):  
Cell Migration ◽  
Data Processing ◽  
High Precision ◽  
Frequency Scaling ◽  
Tandem Configuration ◽  
Imaging Algorithm ◽  
Bistatic Sar ◽  
Range Cell ◽  
Sar Data ◽  
Range Cell Migration

A frequency scaling (FS) imaging algorithm is proposed for spotlight bistatic SAR data processing. Range cell migration correction (RCMC) is realized through phase multiplication. The proposed algorithm is insensitive to the length of the baseline due to the high precision of the point target (PT) spectrum that we are based on. It is capable of handling bistatic SAR data with a large baseline to range ratio. The algorithms suitable for small and high squint angles are both discussed according to whether the range dependence of the second range compression (SRC) can be neglected or not. Simulated experiments validate the effectiveness of the proposed algorithm.

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