Abstract

A sonar system for transmitting and/or receiving sonar beams with a desired beam pattern or patterns. The system has a transducer having a linear array of transducer elements, which is driven by element driving signals to project a sonar beam and which generates element receive signals in response to a received sonar signal or sonic wave. A control unit controls the transducer and is configured to generate the element driving signals from a waveform signal based on a set of drive pattern weightings associated with a desired beam pattern to project from the transducer. The control unit is also configured to apply a set of receive pattern weightings to the element receive signals, the receive pattern weightings associated with a desired beam pattern to be detected or sensed received by the sonar system. The drive pattern weightings and receive pattern weightings comprise an amplitude component and polarity component.

IPC Classes  ?

• G01S 15/88 - Sonar systems specially adapted for specific applications
• G01S 7/56 - Display arrangements

Abstract

A sonar system for transmitting and/or receiving sonar beams with a desired beam pattern or patterns. The system has a transducer having a linear array of transducer elements, which is driven by element driving signals to project a sonar beam and which generates element receive signals in response to a received sonar signal or sonic wave. A control unit controls the transducer and is configured to generate the element driving signals from a waveform signal based on a set of drive pattern weightings associated with a desired beam pattern to project from the transducer. The control unit is also configured to apply a set of receive pattern weightings to the element receive signals, the receive pattern weightings associated with a desired beam pattern to be detected or sensed received by the sonar system. The drive pattern weightings and receive pattern weightings comprise an amplitude component and polarity component.

IPC Classes  ?

• G01S 15/88 - Sonar systems specially adapted for specific applications
• G01S 7/56 - Display arrangements

Goods & Services

Navigational apparatus and equipment, including marine and land based navigational apparatus and equipment and marine navigational apparatus and equipment including fish finders, radars, sonars, chart plotters, depth sounders, and VHF radios; GPS systems, apparatus and equipment, including GPS antennae, receivers and sensors; electrical and electronic communications equipment; satellites and satellite communications equipment and apparatus; parts and fittings for all the aforesaid goods; software programs including navigation, route search and map charting.

Goods & Services

Marine navigational apparatus and equipment, namely, sonar-based fish finders, radar, sonar, chart plotters, sonar-based depth sounders [, and VHF radios ] ; [ Land-based navigational apparatus and equipment, namely, navigation apparatus for vehicles; ] satellite communications equipment and apparatus, namely, satellite compasses for positioning, depth sensing, pitch, heave, heading and roll stabilization for marine and navigational use; parts for all the aforesaid goods

Goods & Services

(1) Navigational apparatus and equipment, namely, fish finders, radars, sonars, chart plotters, depth sounders, and VHF radios; GPS systems, apparatus and equipment, namely, GPS antennae, receivers and sensors; parts and fittings for all the aforesaid goods; software programs for use with satellites and GPS navigation systems for navigation, route planning and electronic mapping.