Background Motion Effects on Staring Sensors and the Relative Effectiveness of Signal Processing Filters in Minimizing such Effects on Target Detection,
Abstract
The objectives of this study are to characterize apparent background motion as a function of observer-satellite orbit and sighting geometry and then to compare the effectiveness of signal processing filters in minimizing background motion effects on target detection. For many applications, complex algorithms cannot be realized economically, so simple yet effective algorithms must be developed to do the job. In this study both ideal and optimum third-order temporal recursive filters were synthesized and their simulated signal-to-noise ratio performance compared with that obtained by simple temporal differencing (first-through fourth-order). Our results indicate that for the same amount of memory, compared to the differencing filters, significant SNR performance improvement can be achieved with optimum recursive filters at the cost of a modest increase in filter complexity. The study is particularly pertinent to the detection by a staring mosaic sensor of aircraft from satellites in high (>1000 kilometer) orbits. They are typically dim targets flying close to a structured background (the earth surface), and the background clutter tends to dominate the detection problem. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1980
- Accession Number
- ADA090644
Entities
People
- A. K. Mukhopadhyay
- W. H. Haas