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:
Sep. 01, 2026
Filed:
Sep. 01, 2021
Fudan University, Shanghai, CN;
Meiyixiang Luo, Shanghai, CN;
Feng Xu, Shanghai, CN;
FUDAN UNIVERSITY, Shanghai, CN;
Abstract
A segmented aperture imaging/positioning method of a multi-rotor unmanned aerial radar. A target echo is acquired based on an unmanned aerial vehicle-borne synthetic aperture radar system. An echo signal estimated from the motion state of a manoeuvring platform is segmented. Motion compensation is performed on each echo signal segment. A two-dimensional spectrum is obtained by performing a two-dimensional Fourier transform on each compensated echo signal segment. A series inversion method to decompose the two-dimensional spectrum is used to obtain a phase filter of each segment. The two-dimensional spectrum of each segment is multiplied by the phase filter, and an image of each segment is obtained by performing two-dimensional inverse Fourier transform on the two-dimensional spectrum. A full-aperture imaging result is obtained by performing geometric corrections on the images and splicing them. The trajectory of each segment of the platform is spliced to obtain complete trajectory coordinates of the platform.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile