Sensor channel isolation systems and methods

Patent metadata

Field	Value
Publication number	US-2020011981-A1
Application number	US-201916457739-A
Country	US
Kind code	A1
Filing date	Jun 28, 2019
Priority date	Feb 21, 2014
Publication date	Jan 9, 2020
Grant date	—

Abstract

Techniques are disclosed for systems and methods to provide accurate and reliable compact sonar systems for mobile structures. A sonar system includes multiple sensor channels, each comprising a sonar transmitter and a sonar receiver, and a logic device configured to provide control signals and receive sensor signals from the sensor channels. The logic device is configured to provide transmission signals to sonar transducer assemblies, where signal patterns of the transmission signals are differentiated based at least in part on frequency content. Acoustic returns are processed using the signal patterns to reduce inter-channel pickup between the sensor channels. Resulting sonar data and/or imagery may be displayed to a user and/or used to adjust a steering actuator, a propulsion system thrust, and/or other operational systems of the mobile structure.

First claim

What is claimed is:

1 . A system comprising:
first and second sensor channels each comprising a sonar transmitter and a sonar receiver; and a logic device configured to provide one or more control signals and receive one or more sensor signals from the first and second sensor channels.

Assignees

• Flir Systems

Inventors

• Stokes Paul
• Sayer William
• Muller Paul
• Wellcome David
• Pope Gordon

Classifications

• G01S7/52006

  with provision for compensating the effects of temperature · CPC title

• G10K11/35

  using mechanical steering of transducers {or their beams} · CPC title

• B06B2201/74

  Underwater · CPC title

• G01S15/96

  for locating fish · CPC title

• G10K11/34

  using electrical steering of transducer arrays, e.g. beam steering {(constructional aspects B06B1/0607, B06B1/085)} · CPC title