| US 7,586,434 B1 | ||
| Method and system for mapping a target scene using scanning radar | ||
| Mikael Hämäläinen, Uppsala (Sweden) | ||
| Assigned to SAAB AB, Linköping (Sweden) | ||
| Filed on Mar. 29, 2006, as Appl. No. 11/277,772. | ||
| Claims priority of application No. 05445017 (EP), filed on Mar. 29, 2005. | ||
| Int. Cl. G01S 13/00 (2006.01) | ||
| U.S. Cl. 342—25R [342/25 A; 342/25 B; 342/74; 342/89] | 20 Claims |
| 1. A method for mapping a target scene from a moving platform, the method comprising:
providing a scanning Doppler radar sensitive to a relative movement between the radar and the target scene;
calculating a movement of a platform on which a radar antenna is mounted utilizing navigation data obtained for the platform;
and
approach compensating a radar return signal,
wherein, for approach compensation, a signal quantity related to pulses transmitted and received by the radar is transformed
pulse by pulse to a corresponding movement-corrected signal quantity by displacement in time and phase, dependent upon a movement
of the platform along an imaginary platform movement direction oriented in such a way that a momentary direction of a radar
antenna is oriented at essentially 90° with respect to a direction of the movement of the imaginary platform.
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