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. 07, 2020
Filed:
Jun. 12, 2019
Applicant:
Tsinghua University, Beijing, CN;
Inventors:
Assignee:
TSINGHUA UNIVERSITY, Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/90 (2006.01); G01S 13/88 (2006.01); G01S 7/41 (2006.01);
U.S. Cl.
CPC ...
G01S 13/9064 (2019.05); G01S 7/41 (2013.01); G01S 13/887 (2013.01); G01S 13/904 (2019.05);
Abstract
The disclosure relates to a method and a system for terahertz ISAR imaging. In the method, a chirp signal is transmitted to an imaging target moving at a preset speed and a terahertz ISAR echo signal is received. The terahertz ISAR echo signal is matched filtered in a fast time domain, baseband transformed in a slow time domain, corrected to eliminate a time domain zero offset, baseband transformed, discretized, interpolated, and two-dimensional inverse Fourier transformed to obtain a two-dimensional image of the imaging target.