A marine sonar display device comprises a display, a sonar element, a memory element, and a processing element. The display presents sonar images. The sonar element generates a sonar beam and presents transducer signals. The processing element is in communication with the display, the sonar element, and the memory element and receives the transducer signals, calculates sonar data from the transducer signals and generates a three-dimensional view of a portion of the body of water, wherein the view includes a plurality of sonar images. Each sonar image is generated from sonar data derived from a previously-generated sonar beam and includes representations of underwater objects and a water bed. The processing element also generates a cursor plane and a cursor positioned thereon, both of which appear on the three-dimensional view. The processing element further controls the display to present the three-dimensional view, the sonar images, the cursor plane, and the cursor.

Techniques are disclosed for systems and methods to provide networkable sonar systems for mobile structures. A networkable sonar system includes a transducer module and associated sonar electronics and optionally orientation and/or position sensors and/or other sensors disposed substantially within the housing of a sonar transducer assembly, which is coupled to one or more user interfaces and/or other sonar systems over an Ethernet connection. The sonar transducer assembly may be configured to support and protect the transducer module and the sonar electronics and sensors, to physically and/or adjustably couple to a mobile structure, and/or to provide a simplified interface to other systems coupled to the mobile structure. Resulting sonar data and/or imagery may be transmitted over the Ethernet connection and displayed to a user and/or used to adjust various operational systems of the mobile structure.

Systems and methods for providing a sonar beam footprint are detailed herein. A system for presenting marine data includes at least one sonar transducer associated with a watercraft, a display, processor(s), and memory including computer program code. The sonar transducer emits sonar beams into an underwater environment that define a beam shape. The program code, when executed, causes, on the display, presentation of a chart and a representation of the watercraft; determines a depth corresponding to a bottom surface of a body of water at a current location of the watercraft; and determines, based on the depth and the beam shape, a sonar beam footprint corresponding to a projection of the beam shape at the depth. The program code further causes, on the display, presentation of the sonar beam footprint on the chart so as to visually indicate sonar beam coverage.

Systems and methods for determining a location of an object within a sonar beam zone are detailed herein. A system for presenting marine data includes at least one sonar transducer associated with a watercraft, a display, processor(s), and a memory including a computer program code. The sonar transducer emits sonar beams into an underwater environment defining a beam shape. The program code, when executed, causes, on the display, presentation of a chart and a representation of the watercraft; and determines, based on the beam shape corresponding to the sonar transducer, a sonar beam zone corresponding to a sonar coverage of the underwater environment of the body of water. The program code further receives sonar return data and determines a position of an object within the sonar beam zone, and causes, on the display, presentation of the sonar beam zone and an indication of the object within the sonar beam zone.

A system and method are provided for visualizing an offset in static parameters in an echo sounding system by generating a difference grid by subtracting a first survey line from a second survey line to determine difference values at each point in the grid; and displaying the difference grid on a display device, where the difference values are represented on a visual scale. The difference values may be used to calibrate the echo sounding system or check the quality of the calibration of an echo sounding system.

A sonar transducer array assembly comprises a first flexible circuit, a second flexible circuit, and a plurality of transducer elements. The first and second flexible circuits each include a first side, a second side, and a plurality of adhesive areas spaced apart and positioned in a line along one edge of the first side. The transducer elements each include a first surface attached to one of the adhesive areas of the first flexible circuit, an opposing second surface attached to one of the adhesive areas of the second flexible circuit, and a third surface positioned between the first and second surfaces. The transducer elements form a linear array with the third surface of each transducer element in alignment and configured to transmit and receive an acoustic pressure wave.

A marine multibeam sonar device comprises a processing element and a transmitter. The processing element generates a plurality of transmit transducer electronic signals and inverts a polarity of a first portion of the transmit transducer electronic signals. The transmitter is in communication with the processing element and includes a plurality of transmit electronic circuits and a plurality of transmit transducers. Each transmit electronic circuit receives and processes one of the transmit transducer electronic signals, wherein a first portion of the circuits re-inverts the polarity of the first portion of the transmit transducer electronic signals. The transmit transducers receive the processed transmit transducer electronic signals from the transmit electronic circuits and generate a sonar beam.

An underwater information display device, which transmits an ultrasonic wave, receives an echo reflected by an underwater target, and displays the echo, includes: a transmission signal generation part that forms a transmission signal sequence in which at least two temporally adjacent transmission signals are converted so as to be identifiable at the time of reception and have different intervals; a transmission part that emits a transmission signal as an ultrasonic wave into water; a reception part that receives an echo and outputs a reception signal; a storage part that stores multiple reception signals corresponding to temporally continuous transmission signals; an interpolation part to which reception signals stored in the storage part are supplied and which replaces a ghost component included in the reception signals with an echo of another temporally nearby transmission signal; and a display part that draws reception signals including a signal interpolated by the interpolation part.

A system for controlling a marine vessel has a sonar depth finder which displays a chart, stored in memory, for a body of water. The chart includes an underwater feature contour that defines a boundary of an underwater feature. The sonar depth finder includes a processor to create or update the topographical chart based on sonar data from a sonar transducer assembly. The sonar data includes information on the underwater feature. The processor can display and store the topographical chart. The user may select from the underwater feature contours on the depth finder display. The depth finder can generate a route for the marine vessel that includes a path along the selected underwater feature contours. A vessel control device, in communication with the depth finder, may receive transmissions, from the depth finder, which include the generated route. The vessel control device can automatically direct the marine vessel along the route.

The present invention is capable of determining the location(s) of waste (e.g. nuclear fuel debris, obstacles, contaminated or otherwise radioactive materials), monitoring and inspecting their surroundings, and transporting them, as well as use in repair, construction, and reactor decommissioning work in high radiation environment. Ultrasound (or sound) waves are not subject to interference from radiation. This modality is utilized in the present invention to detect and image waste and/or objects of interest. The system combines the resulting ultrasound (or sound) wave images for detecting waste and/or objects of interest with radiation information acquired by a radiation detector, to generate and adjust new composite images to display. For example, the image in the direction of strong radiation is red and the image in the direction of weak radiation is blue. Additionally, the constituent imaging apparatus may be fitted on a drone or robotic system for repair and construction work.