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:
Jul. 10, 2001
Filed:
Sep. 28, 1999
Toshihiro Sezai, Abiko, JP;
National Space Development Agency of Japan, Tokyo, JP;
Abstract
A radio wave source information display apparatus including: a signal processing circuit having a means for performing the Fourier transform with respect to azimuth of an electric field signal outputted from an antenna receiving circuit, a means for performing the Fourier transform with respect to azimuth of the antenna pattern of an antenna, a means for dividing the Fourier transform signal derived from the electric field signal by the antenna pattern Fourier transform signal, a low-pass filter for subjecting the divided signal to low-pass filtering with respect to azimuthal frequency, a means for extracting exponential function components of the output signal of the low-pass filter, and a means for obtaining radio wave source information from the extracted exponential function components; and a display section for displaying radio wave source information obtained at the signal processing circuit. Provided hereby is the radio wave source information display apparatus in which exponential function components contained in a radio wave source spectrum signal obtained in the process of applying deconvolution method to antenna response is extracted so as to directly obtain and display radio wave source information.