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:
Mar. 19, 1996
Filed:
Nov. 02, 1994
Bruno Carrara, Meudon, FR;
Thomson-CSF, Paris, FR;
Abstract
Disclosed is a method for determining the rank of ambiguity in terms of distance of radar echoes. In a sequence comprising a given number N of recurrences, the method consists, in a first step, in making a retrograde prediction of an echo for the P first recurrences on the basis of the echoes received in the Q last recurrences, in a second step in comparing the echoes actually received in the P first recurrences with the predicted echo and in a third step in determining the rank of ambiguity in distance as a function of the result of the comparison, the rank of ambiguity of an echo being the integer immediately greater than the highest rank of the first recurrences where the difference between the predicted echo and the actually received echo exceeds a threshold that is at least equal to the prediction noise multiplied by a factor of adjustment K. The sum of the numbers P and Q is smaller than or equal to the number N, and is preferably equal to this number N. Application to surveillance or tracking radar. FIG. 3.