Accession Number:

ADA505646

Title:

Adaptive Spatial-Temporal Filtering Methods for Clutter Removal and Target Tracking

Descriptive Note:

Journal article

Corporate Author:

UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF MATHEMATICS

Personal Author(s):

• Tartakovsky, Alexander G.
• Brown, James

Report Date:

2007-09-01

Pagination or Media Count:

15.0

Abstract:

In space-based infrared ballistic missile defense sensor systems, cluttered backgrounds are typically much more intense than the equivalent sensor noise or the targets being detected. Therefore, the development of efficient clutter removal and target preservationenhancement algorithms is of crucial importance. To meet customer requirements, the advanced clutter rejection algorithms should provide more than 20 dB improvement in detection sensitivity. We propose an adaptive parametric spatial-temporal filtering technique together with the jitter compensation scene stabilization. The results of simulations and processing of real data show that the developed adaptive spatial-temporal clutter suppression algorithms allow for efficient clutter rejection in all tested situations. Proposed algorithms completely remove heavy clutter in the presence of substantial jitter and do not require expensive sub-pixel jitter stabilizers. In contrast, spatial-only filters and temporal differencing methods can be used only for weak and relatively correlated clutter. A stand-alone simulator was developed to demonstrate capabilities and performance of various algorithmic approaches. Simulations model various geometries, resolutions, illuminations and meteorological conditions for space-based IR staring sensor systems.

Descriptors:

• *TRACKING
• *TARGET DETECTION
• *INFRARED DETECTORS
• *SPACE BASED
• RADAR CLUTTER
• BACKGROUND NOISE
• DETECTION
• OPTIMIZATION
• LINE OF SIGHT
• ALGORITHMS

Subject Categories:

• Target Direction, Range and Position Finding

Distribution Statement:

APPROVED FOR PUBLIC RELEASE