CTFM DETECTION APPARATUS AND UNDERWATER DETECTION APPARATUS
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United States of America Patent
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May 12, 2016
app pub date -
Nov 5, 2015
filing date -
Nov 5, 2015
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Abstract
A Continuous Transmission Frequency Modulated (CTFM) detection apparatus is provided. The detection apparatus includes a projector, a sensor, a motion mechanism, and a hardware processor. The projector transmits a frequency modulated transmission wave. The sensor includes a plurality of receiving elements, each receiving element of the plurality of receiving elements receiving a reflected wave, the reflected wave comprising a reflection of the transmission wave. The motion mechanism moves the sensor. The hardware processor is programmed to at least generate a plurality of beat signals, each beat signal of the plurality of beat signals corresponding to a receiving element from the plurality of receiving elements based at least in part on the transmission wave transmitted by the projector and the reflected wave received by the receiving element, wherein at least some of the beat signals from the plurality of beat signals corresponds to a different receiving element from the plurality of receiving elements, and perform a beamforming process based on each beat signal from the plurality of beat signals.
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