Delay-Doppler Radar Imaging.
Abstract
The goal of this project is to formulate and investigate new approaches for forming images of radar targets from spotlight-mode, delay-doppler measurements. These measurements could be acquired with a high-resolution radar-imaging system operating with an optical or radio frequency carrier. Two approaches are under study. The first is motivated by an image-reconstruction algorithm used in radionuclide imaging called the confidence-weighted algorithm. The second is one based on more fundamental principles which starts with a mathematical model that accurately describes the physics of an imaging radar-system and then uses statistical-estimation theory with this model to derive processing algorithms. Spotlight-mode high-resolution radar-imaging relies upon the relative motion between the transmitter, target, and receiver. The target is illuminated by a series of transmitted pulses. The return for each pulse is a superposition of reflections from various locations on the target, with each location affecting the pulse by introducing both a delay and a doppler shift. The returns are processed to produce an image of the target.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 30, 1987
- Accession Number
- ADA184165
Entities
People
- Donald L. Snyder
Organizations
- University of Washington