SYSTEMS AND METHODS FOR SIGNAL DETECTION AND DIGITAL BANDWIDTH REDUCTION IN DIGITAL PHASED ARRAYS

• US 20170324440A1
• Filed: 02/13/2017
• Published: 11/09/2017
• Est. Priority Date: 02/12/2016
• Status: Active Grant

• Current Assignee: the united states of america as represented by the secretary of the navy
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Snow, Trevor
• Granted Patent: US 10,200,081 B2
• Time in Patent Office: Days
• CPC Class Codes: H01Q 3/2658 Phased-array fed focussing structure
• CPC Class Codes: H01Q 3/38 the phase-shifters being digital
• CPC Class Codes: H01Q 3/40 with phasing matrix
• CPC Class Codes: H04B 1/66 for reducing bandwidth of signals; for improving efficiency of transmission H04B1/68 takes precedence
• CPC Class Codes: H04B 7/043 using best eigenmode, e.g. beam forming or beam steering
• CPC Class Codes: H04B 7/0837 using pre-detection combining H04B7/0868 takes precedence
• CPC Class Codes: H04B 7/088 using beam selection

Abstract

Methods and systems are provided including a system for signal detection and digital bandwidth reduction in a phased array comprising a digital phased array receiving system, digital beamforming network, and central system-level processing system. In at least one embodiment, a system for signal detection and digital bandwidth reduction in a phased array is provided that includes a digital phased array receiving and transmitting system, a plurality of digital processing nodes, transceivers, and a core processing node, and a plurality of digital beamforming nodes. The exemplary the digital processing nodes including control sections that each perform preprocessing to identify signals with predetermined signal characteristics. The exemplary said preprocessing further includes selecting reflected signals received by the digital phased array receiving and transmitting system having one or more of the predetermined signal characteristics. The selected reflected signals reduced in size and passed to the core processing node with radar data sets.

Claims

1. A system for signal detection and digital bandwidth reduction in a phased array comprising a digital phased array receiving and transmitting system, a plurality of digital processing nodes, transceivers, and a core processing node, and a plurality of digital beamforming nodes, wherein the digital processing nodes including control sections that each perform preprocessing to identify signals with predetermined signal characteristics, wherein said preprocessing further comprises selecting reflected signals received by the digital phased array receiving and transmitting system having one or more of the predetermined signal characteristics, said selected reflected signals are passed to the core processing node with a plurality of data sets associated with each of the selected reflected signals.