Radar apparatus

Details Radar apparatus Radar apparatus

2007-07-24

2007-07-24

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Testing or calibrating of radar system

By monitoring

C342S174000

Reexamination Certificate

active

11146329

ABSTRACT:
The present invention relates to a radar apparatus that uses a plurality of transmitting/receiving antennas A1-A4and receives a reflected wave, of a transmitted wave, reflected from a target. By utilizing the property that the path of the transmitted wave from an antenna A1and its reflected wave and the path of the transmitted wave from the next selected antenna A2and its reflected wave share the same spatial system, and therefore that both received signals have the same characteristics in terms of frequency and phase, a judgment is made as to whether there exists any difference between the receiving characteristics of the antennas, and the received signal is corrected in accordance with the result of the judgment. It is also possible to judge the presence or absence of a change in the characteristic of each antenna, and apply a correction accordingly, even during the normal operation of the apparatus.

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