Propagation Effects in Space-Based Surveillance Systems
Abstract
This report describes the first year's effort to investigate propagation effects in space-based radars. A model was developed for analyzing the deleterious systems effects by first developing a generalized aperture distribution that ultimately can be applied to any space-based radar configuration. The propagation effects are characterized in terms of the SATCOM model striation parameters. The form of a generalized channel model for space- based radars is described and the principal results are summarized. A generalized aperture model is described in both discrete and integral forms. The asymptotic form of the radar signal correlation function is derived under strong-scatter conditions. The results show that the forward and return paths are uncorrelated, which greatly simplifies the applications of the model. To illustrate one application of the model, the average antenna pattern distortion is computed and the ramifications of such effects on the radar-signal coherence time are discussed. The SATCOM model is used to characterize the ionospheric disturbance and the attendant propagation effects.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1982
- Accession Number
- ADA131149
Entities
People
- C. L. Rino
Organizations
- SRI International