Multi-beam imaging sonar real-time signal processing device with three-dimensional positioning capability

Abstract

The invention discloses a multi-beam imaging sonar real-time signal processing device with a three-dimensional positioning capability. The multi-beam imaging sonar real-time signal processing device comprises an embedded GPU signal processing subsystem, a signal interaction subsystem and a plurality of signal acquisition subsystems; each signal acquisition subsystem comprises at least two parallelacquisition assemblies, and each acquisition assembly is controlled by the signal interaction subsystem to synchronously acquire sonar linear array data in parallel, preprocesses the acquired data and transmits the preprocessed data to the signal interaction subsystem; the signal interaction subsystem simultaneously controls the plurality of signal acquisition subsystems to acquire sonar linear array data, and the sonar linear array data are used as an intermediate bridge to realize sonar linear array data transmission between the embedded GPU signal processing subsystem and the signal acquisition subsystems; and the embedded GPU signal processing subsystem controls the signal interaction subsystem to transmit sonar linear array data, performs real-time calculation of a beam forming algorithm and a cross-spectrum method on the sonar linear array data to obtain two-dimensional acoustic image data and a target three-dimensional positioning result, and uploads the two-dimensional acoustic image data and the target three-dimensional positioning result to an upper computer for display.

Description

technical field [0001] The invention relates to embedded GPU processor technology, FPGA technology, two-dimensional acoustic imaging image processing technology, cross-spectrum analysis technology and multi-channel synchronous sampling technology, specifically relates to a real-time multi-beam imaging sonar with three-dimensional positioning capability Signal processing device. Background technique [0002] The multi-beam imaging sonar system has multiple functions such as underwater detection, obstacle avoidance, and positioning, and can strengthen the control of sea areas through effective monitoring of underwater information. With the increasing frequency of human ocean activities, the use of multi-beam imaging sonar systems is no longer limited to military purposes, and has been widely used in commercial and civilian fields such as marine resource development, sea rescue, and submarine landform detection. The multi-beam imaging sonar system can receive and process multi...

AI Technical Summary

Problems solved by technology

In China, the research and development of multi-beam imaging sonar technology is mainly concentrated in scientific research institutes and military enterprises, basically based on the drive of national and military projects. Although the localization rate is relatively high, the industrialization and technical support are relatively weak

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