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:
Aug. 29, 1978
Filed:
Jan. 31, 1977
Applicant:
Inventor:
Jacques Sirven, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
343-8 ;
Abstract
A device for processing radar signals which enable precise Doppler information to be obtained. The signals, demodulated in cartesian coordinate X and Y and then coded are converted into polar coordinate .rho. and .theta.. Then .theta. is replaced by the difference .theta.' between two successive values of .theta. received during two consecutive repetitions. The couple .rho., .theta.' is converted into cartesian coordinate X' and Y', filtered and then reconverted into polar coordinate .rho.' and .theta.' where .rho.' represents the amplitude relative to the echo and .theta.' its Doppler speed.