The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2015
Filed:
Jul. 25, 2014
Naval Undersea Warfare Center, Division, Newport, Newport, RI (US);
Donald H Steinbrecher, Brookline, MA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A receiving system is provided in which an analog electromagnetic signal is received from a signal source. A digital observable signal generator and digital to analog convertor (DAC) produce an analog observable signal while a digital dither signal generator and DAC produce an analog dither signal. The electromagnetic signal, the observable signal and the dither signal continue to a power divider via an analog signal combiner. The divider provides identical signal paths wherein each signal path includes a signal frequency bandwidth of interest. The signal paths are amplified onto an analog to digital converter (ADC). The ADC is operable for a Nyquist frequency bandwidth, wherein the dither signal includes a pseudo-random electromagnetic signal with electromagnetic energy that falls outside the signal frequency bandwidth of interest but falls within the Nyquist frequency bandwidth. A processor processes signals from the signal paths to produce a digital image of the analog electromagnetic signal.