A THEORY OF "SQUINTED" SYNTHETIC-APERTURE RADAR

Authors
  1. Vant, M.R.
  2. Haslam, G.E.
Corporate Authors
Communications Research Centre, Ottawa ONT (CAN)
Abstract
A theory is developed that describes the processing of data collected with a satellite-borne synthetic-aperture radar (SAR). A description of the target-radar geometry, and the form of the received, demodulated radar signal is given. It is shown that the solution for the case in which the antenna is directed perpendicular to track (sidelooking), is obtained by a simplification of the general case in which the antenna is squinted with respect to the perpendicular to track. A mathematical description of the signal processing operations required to produce a SAR image from the received radar signal is presented and the form of the processed signal is described. In particular, a technique which employs two-dimensional matched filtering to produce the radar image is discussed and the ability of this approach to accommodate the coupling of the range (across-track) and azimuth (along-track) signals is investigated. TRUNCATED
Report Number
1339 —
Date of publication
15 Aug 1980
Number of Pages
39
DSTKIM No
81-00526
CANDIS No
31670
Format(s):
Hardcopy;Originator's fiche received by DSIS

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