Abstract

A system and method for generating three-dimensional (3D) images using sonar technology comprises a circular phased array to create 3D point clouds from the echoes of a single sonar ping and may be configured to measure Doppler shift. The circular phased array is a circular receiver array that is combined with a single, wide opening angle projector that transmits at least one pulse of acoustic energy. The echoes from this pulse are received by the circular array. The signals from the receiver elements are combined using Delay and Sum beamforming processes to perform spatial filtering with resolution as discussed above. The system and method combine advantages of Mills Cross systems and square arrays, providing high-resolution, instantaneous 3D imaging employing a 1D array, leading to a more efficient and scalable design.

IPC Classes  ?

• G01S 15/89 - Sonar systems specially adapted for specific applications for mapping or imaging
• G01S 15/58 - Velocity or trajectory determination systemsSense-of-movement determination systems

Abstract

A system and method for generating three-dimensional (3D) images using sonar technology comprises a circular phased array to create 3D point clouds from the echoes of a single sonar ping and may be configured to measure Doppler shift. The circular phased array is a circular receiver array that is combined with a single, wide opening angle projector that transmits at least one pulse of acoustic energy. The echoes from this pulse are received by the circular array. The signals from the receiver elements are combined using Delay and Sum beamforming processes to perform spatial filtering with resolution as discussed above. The system and method combine advantages of Mills Cross systems and square arrays, providing high-resolution, instantaneous 3D imaging employing a 1D array, leading to a more efficient and scalable design.

IPC Classes  ?

• G01S 15/89 - Sonar systems specially adapted for specific applications for mapping or imaging
• G01S 15/58 - Velocity or trajectory determination systemsSense-of-movement determination systems

Abstract

A watercraft angle of attack system includes sensors having a position locator; a heading sensor; a tilt sensor; an acoustic Doppler velocity sensor that measures velocity of the boat relative to a volume of water remote from the boat so as to reduce the boat-induced disturbance of the velocity in the volume; and a processor programmed to receive real time data from the sensors; and to compute and display angle of attack of the watercraft relative to the water.

IPC Classes  ?

• G01B 21/22 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapersMeasuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for testing the alignment of axes
• G01S 11/10 - Systems for determining distance or velocity not using reflection or reradiation using radio waves using Doppler effect
• B63G 1/00 - Arrangements of guns or missile launchersVessels characterised thereby

Abstract

An AD2CP includes at least one transducer assembly emitting sets of slanted directional acoustic beams and receiving the echoes; and electronics that processes the echoes into depth cells and computes velocity in each depth cell. The AD2CP is configured so that each beam set has a profiling catenation, at least two of which are different, and the AD2CP is configured so that the emitting, receiving and processing operate contemporaneously.

IPC Classes  ?

• G01S 15/00 - Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
• G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters

Abstract

An AD2CP includes at least one transducer assembly emitting sets of slanted directional acoustic beams and receiving the echoes; and electronics that processes the echoes into depth cells and computes velocity in each depth cell. The AD2CP is configured so that each beam set has a profiling catenation, at least two of which are different, and the AD2CP is configured so that the emitting, receiving and processing operate contemporaneously.

IPC Classes  ?

• G01S 15/00 - Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
• G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters

Goods & Services

water current measuring monitors and water current profiling monitors