A survey system including a multibeam echo sounder having a single projector array and a single hydrophone array constructs a multi-signal message and deconstructs a corresponding multi-signal echo to substantially simultaneously perform multiple survey missions.

A method for providing a digital sensor signal (DS) from an ultrasonic sensor (16) for signal transmission to a signal receiver (28) is disclosed, in which a digital output signal (OS) from the ultrasonic sensor (16) is processed to form the digital sensor signal for signal transmission. Provision is made for the processing to comprise the following steps: (i) determining a signal change (SC) of successive values of the output signal (OS), (ii) scaling this signal change (SC) by means of a variable scaling factor (SF) which is specified by a scaling scheme known to the ultrasonic sensor (16) and the signal receiver (28), and (iii) outputting the scaled signal change (SC) as the digital sensor signal (DS). A corresponding apparatus (32) is disclosed for creating a digital sensor signal (DS) from an ultrasonic sensor (16) for signal transmission to a signal receiver (28), to a corresponding ultrasonic sensor device with an ultrasonic sensor (16) and such an apparatus (32), and to a corresponding ultrasonic sensor system (14).

A method for providing a digital sensor signal (DS) from an ultrasonic sensor (16) for signal transmission to a signal receiver (28) is disclosed, in which a digital output signal (OS) from the ultrasonic sensor (16) is processed to form the digital sensor signal for signal transmission. Provision is made for the processing to comprise the following steps: (i) determining a signal change (SC) of successive values of the output signal (OS), (ii) scaling this signal change (SC) by means of a variable scaling factor (SF) which is specified by a scaling scheme known to the ultrasonic sensor (16) and the signal receiver (28), and (iii) outputting the scaled signal change (SC) as the digital sensor signal (DS). A corresponding apparatus (32) is disclosed for creating a digital sensor signal (DS) from an ultrasonic sensor (16) for signal transmission to a signal receiver (28), to a corresponding ultrasonic sensor device with an ultrasonic sensor (16) and such an apparatus (32), and to a corresponding ultrasonic sensor system (14).

An electronic device and methods for providing high resolution ranging measurements are disclosed. The electronic device includes a pulse generator, a memory, an ADC, a timer, a comparator, a processing unit, connectors for coupling to a transceiver and instructions stored in the memory. The instructions, when performed by the processing unit, performs a method that determines an estimated time of arrival of a series of measurement pulses in the signal and turns on, prior to the estimated time of arrival, the ADC to capture the series of measurement pulses using a first resolution provided by sampling the signal at a rate equal to or greater than the Nyquist rate. The ADC remains on for a fixed time period sized to capture the series of measurement pulses.

An electronic device and methods for providing high resolution ranging measurements are disclosed. The electronic device includes a pulse generator, a memory, an ADC, a timer, a comparator, a processing unit, connectors for coupling to a transceiver and instructions stored in the memory. The instructions, when performed by the processing unit, performs a method that determines an estimated time of arrival of a series of measurement pulses in the signal and turns on, prior to the estimated time of arrival, the ADC to capture the series of measurement pulses using a first resolution provided by sampling the signal at a rate equal to or greater than the Nyquist rate. The ADC remains on for a fixed time period sized to capture the series of measurement pulses.

A survey system including a transmitter, receiver, projector array and hydrophone array transmits and receives sound waves to perform one or more survey missions.

A survey system including a transmitter, receiver, projector array and hydrophone array transmits and receives sound waves to perform one or more survey missions.

A method for providing a digital sensor signal (DS) from an ultrasonic sensor (16) for signal transmission to a signal receiver (28) is disclosed, in which a digital output signal (OS) from the ultrasonic sensor (16) is processed to form the digital sensor signal for signal transmission. Provision is made for the processing to comprise the following steps: (i) determining a signal change (SC) of successive values of the output signal (OS), (ii) scaling this signal change (SC) by means of a variable scaling factor (SF) which is specified by a scaling scheme known to the ultrasonic sensor (16) and the signal receiver (28), and (iii) outputting the scaled signal change (SC) as the digital sensor signal (DS). A corresponding apparatus (32) is disclosed for creating a digital sensor signal (DS) from an ultrasonic sensor (16) for signal transmission to a signal receiver (28), to a corresponding ultrasonic sensor device with an ultrasonic sensor (16) and such an apparatus (32), and to a corresponding ultrasonic sensor system (14).

A method for providing a digital sensor signal (DS) from an ultrasonic sensor (16) for signal transmission to a signal receiver (28) is disclosed, in which a digital output signal (OS) from the ultrasonic sensor (16) is processed to form the digital sensor signal for signal transmission. Provision is made for the processing to comprise the following steps: (i) determining a signal change (SC) of successive values of the output signal (OS), (ii) scaling this signal change (SC) by means of a variable scaling factor (SF) which is specified by a scaling scheme known to the ultrasonic sensor (16) and the signal receiver (28), and (iii) outputting the scaled signal change (SC) as the digital sensor signal (DS). A corresponding apparatus (32) is disclosed for creating a digital sensor signal (DS) from an ultrasonic sensor (16) for signal transmission to a signal receiver (28), to a corresponding ultrasonic sensor device with an ultrasonic sensor (16) and such an apparatus (32), and to a corresponding ultrasonic sensor system (14).

In a sonar system using a large array multielement sonar detector, the raw phase and intensity data is reduced to less than three bits per channel per slice for each of the detectors in the multielement array before the raw data is transmitted to a beamformer for transforming the data to information about the spatial positions of objects reflecting the sonar signals.