Invention Grant
- Patent Title: Doppler beam-sharpened radar altimeter
- Patent Title (中): 多普勒波束锐化雷达高度计
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Application No.: US12476682Application Date: 2009-06-02
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Publication No.: US07911375B2Publication Date: 2011-03-22
- Inventor: Benjamin J. Winstead , Thomas W. Heidemann
- Applicant: Benjamin J. Winstead , Thomas W. Heidemann
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Fogg & Powers LLC
- Main IPC: G01S13/08
- IPC: G01S13/08

Abstract:
Systems and methods for Doppler beam sharpening in a radar altimeter are provided. In one embodiment, a method comprises receiving a return signal at a radar altimeter receiver and applying a first gate to the return signal to select at least a first component of the return signal. Spectral analysis is performed on the first component of the return signal to generate a plurality of frequency bins, wherein each frequency bin is centered around a different frequency across a Doppler shift frequency spectrum for the first component of the return signal. The method further comprises tracking the first component of the return signal, selecting a first frequency bin of the plurality of frequency bins based on the Doppler shift frequency of the first component of the return signal, and outputting a portion of the first component of the return signal falling within the first frequency bin for further processing.
Public/Granted literature
- US20100302088A1 DOPPLER BEAM-SHARPENED RADAR ALTIMETER Public/Granted day:2010-12-02
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