Acoustic array detection and imaging

An apparatus comprising:

• a processor;
• non-transitory computer readable media comprising instructions executable by the processor to:
• provide a probe signal to a driver circuit of an acoustic array of 1014 acoustic transceivers, the acoustic array comprising six array panels, each of the array panels including a respective transceiver array, each transceiver array comprising 169 transceivers, each transceiver comprising:
• a transmitter element;
• a receiver element;
• a 24-bit digital to analog converter (DAC) to convert a digital signal to an analog signal for transmission by the transmitter element;
• and
• a 24-bit analog to digital converter to convert an analog signal from the receiver element to a digital signal;
• provide a cancellation signal to the driver input, to cancel incoming acoustic signals and correlated noise at each receiver element of the acoustic array;
• provide a transmit focal point for the probe signal to be transmitted by the acoustic array;
• adjust, via the driver circuit of the acoustic array, a first phase of the probe signal at one or more transmitter elements of the acoustic array based on the focal point;
• emit, via the acoustic array, the probe signal at the focal point, wherein the probe signal is a broadband signal comprising a plurality of frequencies within a frequency band ranging from 10 Hz to 10 kHz, each of the acoustic transceivers 10,000-frequencies within the plurality of frequencies;
• emit, via the acoustic array, the cancellation signal;
• receive, via the controller interface, a plurality of digital signals, the plurality of signals comprising:
• a first 24-bit digital signal for each of the 10,000 frequencies from the DAC of each transceiver;
• a second 24-bit signal for each of the 10,000 frequencies from the ADC of each transceiver;
• and
• produce a high-resolution, three-dimensional signal with 84 bits of dynamic resolution from the plurality of digital signals by performing the following operations:
• for each transceiver, combine the first 24-bit digital signal with the second 24-bit digital signal to produce a single-frequency transceiver signal having 48 bits of dynamic range per frequency per transceiver;
• for each of the 10,000 frequencies, combine the single-frequency transceiver signal of each transceiver to produce a combined single-frequency signal having 68 bits of dynamic range per frequency;
• combine each of the 10,000 single frequency signals to produce a multi-frequency signal having 81 bits of dynamic range;
• and
• combine a plurality of multi-frequency signals received over a duration of eight seconds to produce the high-resolution, three-dimensional signal.

A method comprising:

• providing, via a controller interface, a probe signal to a driver circuit of an acoustic array having 1014 transceivers, the acoustic array comprising six array panels, each of the array panels including a respective transceiver array, each transceiver array comprising 169 transceivers, each transceiver comprising:
• a transmitter element;
• a receiver element;
• a 24-bit digital to analog converter (DAC) to convert a digital signal to an analog signal for transmission by the transmitter element;
• and
• a 24-bit analog to digital converter to convert an analog signal from the receiver element to a digital signal;
• providing, via the controller interface, a cancellation signal to the driver input, to cancel incoming acoustic signals and correlated noise at each receiver element of the acoustic array;
• providing, via the controller interface, a transmit focal point for the probe signal to be transmitted by the acoustic array;
• adjusting, via the driver circuit, a first phase of the probe signal at one or more transmitter elements of the acoustic array based on the focal point;
• and
• emitting, via the acoustic array, the probe signal at the focal point, wherein the probe signal is a broadband signal comprising a plurality of frequencies within a frequency band ranging from 10 Hz to 10 kHz, each of the acoustic transceivers transmitting 10,000 of the frequencies within the plurality of frequencies;
• emitting, via the acoustic array, the cancellation signal;
• receiving, via the controller interface, a plurality of digital signals, the plurality of signals comprising:
• a first 24-bit digital signal for each of the 10,000 frequencies from the DAC of each transceiver;
• a second 24-bit signal for each of the 10,000 frequencies from the ADC of each transceiver;
• and
• producing a high-resolution, three-dimensional signal with 84 bits of dynamic resolution from the plurality of digital signals by performing the following operations:
• for each transceiver, combining the first 24-bit digital signal with the second 24-bit digital signal to produce a single-frequency transceiver signal having 48 bits of dynamic range per frequency per transceiver;
• for each of the 10,000 frequencies, combining the single-frequency transceiver signal of each transceiver to produce a combined single-frequency signal having 68 bits of dynamic range per frequency;
• combining each of the 10,000 single frequency signals to produce a multi-frequency signal having 81 bits of dynamic range;
• and
• combining a plurality of multi-frequency signals received over a duration of eight seconds to produce the three-dimensional, high-resolution signal.