A multi-look correlation auto-focus technique for synthetic aperture radar data
Abstract
In the case where ephemeris data of high enough quality are not available for the synthetic aperture radar platform, the capability to extract both Doppler center frequency and Doppler rate from the radar data becomes important. Here, a multilook or subaperture correlation method of determining the Doppler rate is presented which is based on the one-to-one correspondence of frequency and time in this type of data. The procedure is discussed in detail, and some test results are presented.
- Publication:
-
NTC 1983; Proceedings of the National Telesystems Conference
- Pub Date:
- 1983
- Bibcode:
- 1983ntc..conf..118M
- Keywords:
-
- Correlation Detection;
- Radar Data;
- Synthetic Aperture Radar;
- Algorithms;
- Amplitudes;
- Bandpass Filters;
- Digital Radar Systems;
- Narrowband;
- Radar Filters;
- Seasat Satellites;
- Space Communications, Spacecraft Communications, Command and Tracking