A real time DSP sonar echo processor
نویسندگان
چکیده
This paper describes a new highly accurate fast selfcontained sonar sensor. Transmission and echo analysis are performed at repetition rates exceeding 27 Hz for ranges to 5.4 metres. The sensor contains low noise variable gain preamplifiers, two 1 MHz 12 bit ADC receivers and a DSP echo processor. Optimal arrival time estimation is performed by the DSP using matched filtering of echoes with short duration and wide bandwidth. With the sensor mounted on a mobile robot, map results are derived from scanning with the sensor as the robot continuously moves.
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