Communications: directive radio wave systems and devices (e.g. – Determining direction – Monopulse
Reexamination Certificate
2011-02-08
2011-02-08
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Determining direction
Monopulse
C342S107000, C342S111000, C342S115000, C342S127000, C342S192000
Reexamination Certificate
active
07884756
ABSTRACT:
A radar apparatus measures an azimuth angle with a calculation device that performs super-resolution angle measuring processing in which relative speeds and relative distances among target objects are calculated, when two azimuth angles are obtained for a given target object that has been detected, the calculation device performs an other-signal detection processing in which, among other detected target objects, a target object is searched whose azimuth angle is the same as one of the two azimuth angles and whose beat frequency upon frequency-increasing modification or frequency-decreasing modification is the same as that of the given target object; and when, through the other-signal detection processing, another target object that satisfies the condition is detected, the calculation device eliminates one of two azimuth angles of the detected given target object, which is equal to the azimuth angle of said another target object detected through the other-signal detection processing.
REFERENCES:
patent: 2004/0252047 (2004-12-01), Miyake et al.
patent: 2007/0153255 (2007-07-01), Ishii et al.
patent: 2008/0278368 (2008-11-01), Noda
patent: 2008-39718 (2008-02-01), None
Ralph O. Schmidt, “Multiple Emitter Location and Signal Parameter Estimation”, IEEE Transactions on Antennas and Propagation, vol. AP-34, Mar. 1986, pp. 276-280, No. 3.
Brainard Timothy A
Mitsubishi Electric Corporation
Sughrue & Mion, PLLC
Tarcza Thomas H
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