Accession Number:

ADA433396

Title:

Deployment of SAR and GMTI Signal Processing on a Boeing 707 Aircraft Using pMatlab and a Bladed Linux Cluster

Descriptive Note:

Briefing charts

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Report Date:

2004-09-28

Pagination or Media Count:

30.0

Abstract:

The Lincoln Multifunction Intelligence, Surveillance and Reconnaissance Testbed LiMIT is an airborne research laboratory for development, testing, and evaluation of sensors and processing algorithms. During flight tests it is desirable to process the sensor data to validate the sensors and to provide targets and images for use in other on-board applications. Matlab is used for this processing because of the rapidly changing nature of the algorithms, but requires hours to process the required data on a single workstation. The pMatlab and MatlabMPI libraries allow these algorithms to be parallelized quickly without porting the code to a new language. The availability of inexpensive bladed Linux clusters provides the necessary parallel hardware in a reasonable form factor. We have integrated pMatlab and a 28 processor IBM Blade system to implement Ground Moving Target Indicator GMTI processing and Synthetic Aperture Radar SAR processing on board the LiMIT Boeing 707 aircraft. GMTI processing uses a simple round robin approach and is able to achieve a speedup of 18x. SAR processing uses a more complex data parallel approach, which involves multiple corner turns and is able to achieve a speedup of 12x. In each case, the required detections and images are produced in under five minutes as opposed to one hour, which is sufficient for in-flight action to be taken.

Subject Categories:

  • Computer Programming and Software
  • Active and Passive Radar Detection and Equipment
  • Target Direction, Range and Position Finding
  • Transport Aircraft
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE