Invention Grant
- Patent Title: Systems and methods for direction finding based on minimum distance search to principal components
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Application No.: US16267564Application Date: 2019-02-05
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Publication No.: US10656235B2Publication Date: 2020-05-19
- Inventor: James M. Bowden
- Applicant: Raytheon Company
- Applicant Address: US MA Waltham
- Assignee: Raytheon Company
- Current Assignee: Raytheon Company
- Current Assignee Address: US MA Waltham
- Agency: Daly, Crowley, Mofford & Durkee LLP
- Main IPC: G01S3/48
- IPC: G01S3/48 ; G01S3/46

Abstract:
The concepts, systems and method described herein provide direction finding (DF) methods based on a minimum distance (MINDIST) search to principal components. In an embodiment, the method includes capturing samples of data from one or more array elements. The samples may be samples of a signal received at the array elements. The method includes generating a spatial sample covariance matrix (SCM) using the samples of data, extracting principal components from the SCM and generating a principal component table using angle and frequency measurement for each of the principal components. The method further includes determining a distance between a test point and each value in the principal component table and identifying a minimum distance point corresponding to a direction of the received signal. The minimum distance point may correspond to direction of arrival of a signal on the one or more array elements.
Public/Granted literature
- US20190178973A1 SYSTEMS AND METHODS FOR DIRECTION FINDING BASED ON MINIMUM DISTANCE SEARCH TO PRINCIPAL COMPONENTS Public/Granted day:2019-06-13
Information query
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