Doppler properties of radars in circular orbits
- 1 September 1986
- journal article
- research article
- Published by Taylor & Francis in International Journal of Remote Sensing
- Vol. 7 (9) , 1153-1162
- https://doi.org/10.1080/01431168608948916
Abstract
Expressions are presented for Doppler frequency shift, Doppler bandwidth, zero Doppler offset angle in spacecraft yaw and, in the SAR mode, the rate of Doppler frequency modulation, azimuth time-bandwidth product, resolution, available integration time and the location of principal azimuth ambiguities. The equations are simply expressed with virtually no approximations based on angles referenced to the satellite. Earth rotation is included, as is the geosynchronous case. (These results differ from expressions to be found elsewhere in the literature, most of which have been derived using flat-Earth approximations.).Keywords
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