Method of operating synthetic aperture radar

Details Method of operating synthetic aperture radar Method of operating synthetic aperture radar

G - Physics

01

S

343/10, 343/50

G01S 13/89 (2006.01) G01S 13/60 (2006.01) G01S 13/90 (2006.01) G01S 15/89 (2006.01)

Patent

CA 1083695

METHOD OF OPERATING SYNTHETIC APERTURE RADAR Abstract of the Disclosure A method, and apparatus for performing the method, of compensating for the effects of Doppler accelerations due to the orientation of the beam in a squinted synthetic aperture radar used for mapping terrain underlying an aircraft are described. According to the disclosed method, compensation is achieved by calculating the Doppler frequency shifts to be ex- perienced by echo signals from points on the terrain to be mapped and then, in accordance with such calculations, varying the pulse repetition frequency of the squinted synthetic aperture radar to eliminate the effects of Doppler acceleration from the echo signals.

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