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:
May. 27, 2025
Filed:
Dec. 10, 2021
Applicant:
Thales, Courbevoie, FR;
Inventors:
Assignee:
THALES, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/4912 (2020.01); G01S 7/481 (2006.01); G01S 17/34 (2020.01); G01S 17/58 (2006.01);
U.S. Cl.
CPC ...
G01S 7/4917 (2013.01); G01S 7/4811 (2013.01); G01S 17/34 (2020.01); G01S 17/58 (2013.01);
Abstract
A method for processing a signal from a coherent lidar comprising a periodically frequency-modulated coherent source (L), the method includes the following steps: A decomposing each modulation period indexed j into a plurality of intervals indexed i, and determining, for each interval Iij, an elementary power spectral density DSP(i,j) of the beat signal over the interval, B determining an average power spectral density over j DSP(i), C determining a lower frequency bound of the average power density DSP(i) and an upper frequency bound, D determining a distance dk(i) and a velocity of the fluid vk(i) from the lower and upper bounds.