Accession Number:

ADA443066

Title:

Time Domain Non-Linear SAR Processing

Descriptive Note:

Final rept. 25 May 2002-30 Dec 2005

Corporate Author:

STATE UNIV OF NEW YORK AT BUFFALO DEPT OF ELECTRICAL ENGINEERING

Personal Author(s):

Report Date:

2006-01-18

Pagination or Media Count:

28.0

Abstract:

The main objectives of this effort were to develop a theoretical foundation for Time Domain Non-Linear SAR Processing, and corresponding DSP algorithms to efficiently implement the process on existing computer architectures. We formulated the equations to convert a flight path OPSINS data into ECEF data that were suitable for mapping into a desired slant imaging plane. The GPS data of an existing SAR platform were used for testing this mapping. Codes were developed for simulating the non-linear SAR signature of targets for a given set of flight path GPS data. We established the mathematical foundation and MATLAB codes for backprojection and wavefiont image formation algorithms for on a non-linear SAR trajectory using multi-processor computers. We conducted parallel computing for the proposed reconstruction algorithms on a shared memory SGI computer and a distributed memory Dell computer using MatlabMPI and C. We also converted the algorithms into parallel Matlab code and created graphical user interfaces for both programs. Parallel algorithms for a SAR-MTI problem were also developed. The two imaging algorithms were studied and tested using both actual and simulated SAR data. These algorithms have also been chosen and implemented for a US Army platform under the WAAMD Wide Area Airborne Mine Detection Program.

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE