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:
Feb. 16, 2010
Filed:
Aug. 10, 2006
Hyo K Chung, Greenville, TX (US);
Phuong H Le, Plano, TX (US);
John M Parker, Sachse, TX (US);
David L Reid, Richardson, TX (US);
Mark a Robertson, Greenville, TX (US);
Hyo K Chung, Greenville, TX (US);
Phuong H Le, Plano, TX (US);
John M Parker, Sachse, TX (US);
David L Reid, Richardson, TX (US);
Mark A Robertson, Greenville, TX (US);
L3 Communications Integrated Systems, L.P., Greenville, TX (US);
Abstract
A geolocation system () includes an emitter (), a plurality of collection nodes (), and a control station (). Each collection node includes a receiver () that is operable to receive signals transmitted from the emitter (), generate a reduced data stream that includes only signal data, and communicate the reduced data stream to the control station () along with navigation data. The receiver () identifies signal data by detecting an energy level of the raw collection data. More specifically, the receiver () determines a bandwidth and a signal-to-noise ratio of each portion of the collection data, and identifies each portion as including signal data if both the bandwidth and the signal-to-noise ratio exceed predetermined threshold amounts. The receiver () includes a digital signal processing component () for performing calculations used by the receiver () to determine the bandwidth and the signal-to-noise ratio.