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:
Oct. 22, 2002
Filed:
Jan. 19, 2001
Applicant:
Inventors:
Armin W. Doerry, Albuquerque, NM (US);
Bertice L. Tise, Albuquerque, NM (US);
Assignee:
Sandia Corporation, Albuquerque, NM (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/285 ; H04B 1/10 ;
U.S. Cl.
CPC ...
G01S 7/285 ; H04B 1/10 ;
Abstract
A method of providing a balanced demodular output for a signal such as a Doppler radar having an analog pulsed input; includes adding a variable phase shift as a function of time to the input signal, applying the phase shifted input signal to a demodulator; and generating a baseband signal from the input signal. The baseband signal is low-pass filtered and converted to a digital output signal. By removing the variable phase shift from the digital output signal, a complex data output is formed that is representative of the output of a balanced demodulator.