Patent ID: 6914553
Filing Date: 2005-07-05
Classification: G01S

Abstract:
1. A synthetic aperture radar (SAR) for a moveable platform comprising: at least one antenna movable with the platform and directed through the ionosphere; a radar transmitter cooperating with said at least one antenna to propagate transmit pulses through the ionosphere, and subjecting the transmit pulses to a Faraday rotation based upon propagation through the ionosphere along a transmit path; a radar receiver cooperating with said at least one antenna to receive echo pulses through the ionosphere based upon the transmit pulses, and subjecting the echo pulses to a Faraday rotation based upon propagation through the ionosphere along a receive path; and a radar processor connected to said radar transmitter and radar receiver for processing to account for the Faraday rotation introduced by propagation through the ionosphere by