Radio wave source information display apparatus
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United States of America Patent
Stats
-
Jul 10, 2001
Grant Date -
N/A
app pub date -
Sep 28, 1999
filing date -
Sep 30, 1998
priority date (Note) -
Expired
status (Latency Note)
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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.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
| Patent Owner | Address | |
|---|---|---|
| NATIONAL SPACE DEVELOPMENT AGENCY OFJAPAN | 4-1 HAMAMATSU-CHO 2-CHOME MINATO-KU TOKYO |
International Classification(s)
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Sezai, Toshihiro | Abiko, JP | 27 | 135 |
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| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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