Detection and ranging appartus and detection and ranging method

Details Detection and ranging appartus and detection and ranging method Detection and ranging appartus and detection and ranging method

2008-08-28

2010-12-28

Tarcza, Thomas H (Department: 3662)

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

Determining direction

C342S070000, C375S130000

Reexamination Certificate

active

07859450

ABSTRACT:
In a detection and ranging apparatus that performs direction-of-arrival estimation using a sensor array and that enlarges an effective aperture using a plurality of transmitting sensors, adverse effects associated with time division switching are eliminated, achieving high-accuracy measurement. A transmitter wave is spread in modulators by using mutually orthogonal codes, and the resulting transmitter waves are radiated from two transmitting sensors. Signals received by receiving sensors are each split by a splitter into two parts, which are then respectively despread in a demodulator by using the same codes as those used in the transmitter.

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