Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Reexamination Certificate
2007-11-13
2007-11-13
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Radar mounted on and controls land vehicle
C342S089000, C342S107000, C342S174000, C342S193000
Reexamination Certificate
active
10974846
ABSTRACT:
There is provided a radar system having an input amplitude correcting function in which even when a large reflection wave exceeding a dynamic range of an A/D converter is inputted, an RCS calculation without a time lag can be executed at high precision, high reliability, and low costs without using power amplification degree control such as an AGC circuit or the like. Harmonic peaks of each target peak of an FFT-processed frequency spectrum are detected. When the harmonics are detected, it is determined that the large reflection wave exceeding the dynamic range of the A/D converter has been inputted, and a lost input amplitude is corrected in accordance with a correction table showing a relation between the harmonic order and an input amplitude correction amount which have previously been recorded.
REFERENCES:
patent: 3781883 (1973-12-01), Effinger et al.
patent: 4324258 (1982-04-01), Huebscher et al.
patent: 4672380 (1987-06-01), Bryant et al.
patent: 5691724 (1997-11-01), Aker et al.
patent: 6466629 (2002-10-01), Isaksson et al.
patent: 2002/0080062 (2002-06-01), Aker
patent: 2004/0174926 (2004-09-01), Shinde
patent: 63244934 (1988-10-01), None
patent: A-2-27283 (1990-01-01), None
patent: 9-68571 (1997-03-01), None
Barker Matthew M
Crowell & Moring LLP
Hitachi , Ltd.
Tarcza Thomas H.
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