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:
Jan. 29, 2008
Filed:
Jan. 07, 2004
Lansing Mclain Carson, Chandler, AZ (US);
Lansing McLain Carson, Chandler, AZ (US);
General Dynamics C4 Systems, Inc., Scottsdale, AZ (US);
Abstract
A system () and method for the reception and despreading of a code-division multiple access (CDMA) global positioning system (GPS) signal (), or other direct-sequence spread-spectrum (DSSS) signals, is provided. An antenna array () receives the DSSS signal () over a plurality of elements (). A preprocessor () down converts and digitizes the DSSS signal () to produce a signal stream () in the time domain. An FFT () transforms the signal stream () to the frequency domain. A beam former () generates a reception beam () for the DSSS signal () in the frequency domain, and also implements a narrowband frequency notch, if desired. A despreader () despreads the transformed signal stream () in the frequency domain. An IFFT () transforms the despread signal stream () back to the time domain. And a postprocessor () converts the transformed despread signal stream () into a desired received signal stream () in the time domain.