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:
Sep. 20, 2016
Filed:
May. 22, 2015
Ryan M. Murphy, Marion, IA (US);
Ryan M. Murphy, Marion, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A spectral harvesting system has one or more sensor modules and a processor. The sensor modules autonomously scan RF signals over a range of frequencies in a region of interest. The processor receives observed RF signals from the sensor modules, and performs signal analysis on the observed RF signals received. The signal analysis includes converting the observed RF signals into a frequency signal in a frequency domain, temporally averaging the frequency signal to provide a temporally averaged frequency signal, performing a coarse estimate of the spectral noise floor of the observed RF signals based on the temporally averaged frequency signal using an opening technique that performs an erosion process followed by a dilation process on the temporally averaged frequency signal, and determining an a-posteriori signal presence probability of a signal being present from an RF emitter in the region of interest based on the coarse estimate.