Phase calibration of a stepped-chirp signal for a synthetic aperture radar

A synthetic aperture radar, stepped technology, applied in the field of radar systems, can solve the problem of not describing the correction of stepped chirp SAR errors, etc.
CN105548972AActive Publication Date: 2016-05-04THE BOEING CO
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
THE BOEING CO
Publication Date
2016-05-04

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Abstract

A Radar Calibration Processor ("RCP") for calibrating the phase of a stepped-chirp signal utilized by a synthetic aperture radar ("SAR") is disclosed. The RCP includes a periodic phase error ("PPE") calibrator, first non-periodic phase error ("NPPE") calibrator in signal communication with the PPE calibrator, and a second NPPE calibrator in signal communication with the first NPPE calibrator.
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Description

[0001] Cross References to Related Applications

[0002] This disclosure claims priority to US Patent Application Serial No. 14 / 491,354, filed September 19, 2014, the entire contents of which are hereby incorporated by reference. technical field

[0003] The present disclosure relates generally to radar systems and, more particularly, to correcting errors in Synthetic Aperture Radar ("SAR") data. Background technique

[0004] Radar has long been used for military and non-military purposes in a variety of applications such as imaging, navigation, remote sensing, and global positioning. A synthetic aperture radar ("SAR") is a primary coherent aerial or satellite side-viewing radar system ("SLAR") that utilizes the flight path of a mobile platform (i.e., a vehicle such as an aircraft or satellite) on which the SAR is located to detect Electronically simulate extremely large antennas or apertures and generate high-resolution remote sensing images. In particular, SAR is used fo...

Claims

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