Communications: directive radio wave systems and devices (e.g. – Testing or calibrating of radar system – By monitoring
Reexamination Certificate
2006-06-06
2006-06-06
Gregory, Bernarr E. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Testing or calibrating of radar system
By monitoring
C342S082000, C342S089000, C342S104000, C342S109000, C342S118000, C342S128000, C342S165000, C342S173000, C342S175000, C342S194000, C342S195000, C342S196000
Reexamination Certificate
active
07057550
ABSTRACT:
A system and method for calibrating a vehicular traffic surveillance Doppler radar are disclosed. In one embodiment, a modulation circuit portion generates double-modulated FM signals. An antenna circuit portion transmits the double-modulated FM signals to a target and receives reflected double-modulated FM signals therefrom. A calibration circuit portion responds to the reflected double-modulated FM signals by sending a calibration signal to the modulation circuit. The calibration signal is indicative of a relationship between a first range measurement derived from phase angle measurements associated with the reflected double-modulated FM signals and a second range measurement derived from speed and time measurements associated with the reflected double-modulated FM signals.
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Applied Concepts Inc.
Gregory Bernarr E.
Griggs Scott T.
Griggs Bergen LLP
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