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Method for implementing sonar real-time signal processing based on Linux group

A signal processing and real-time signal technology, applied in the field of sonar signal processing and cluster parallel computer, can solve the problems of limited computing power and achieve the effect of powerful computing power, simplified difficulty and good scalability

Active Publication Date: 2013-05-01
THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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AI Technical Summary

Problems solved by technology

At present, the sonar signal processing system is mainly implemented on a dedicated signal processor, which requires dedicated signal processing chips and data transmission hardware support. The topology of communication between boards and chips is fixed. As sonar signal processing becomes more and more Complicated, signal processors are often restricted by bus and inter-board data transmission bottlenecks in the case of surges in computing and data scale.

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  • Method for implementing sonar real-time signal processing based on Linux group
  • Method for implementing sonar real-time signal processing based on Linux group
  • Method for implementing sonar real-time signal processing based on Linux group

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0031] The invention proposes a Linux cluster-based sonar real-time signal processing method, which uses the Linux cluster as a hardware platform for signal processing. System architecture such as figure 1 shown.

[0032] The invention introduces the design idea of ​​parallel processing into sonar signal processing. The signal processing task is divided into independent sub-tasks, the allocation of hardware resources and the data link are automatically completed by the Linux cluster, and each sub-task is automatically allocated and run on each computing core, and the data flow and control flow are automatically realized through network communication , without human intervention. The sonar signal processing task independent of hardware is realized, which greatly improves the flexibility and reconfigurability of software development.

[0033] The Linux clus...

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Abstract

The invention relates to a method for implementing sonar real-time signal processing based on a Linux group. In the method, two parts, namely a sonar base array signal real-time simulator and sonar real-time signal processing, are involved. By the method, a parallel processing design idea is introduced into the sonar signal processing, a signal processing task is divided into various independent sub tasks, allocation of hardware resources and data links are automatically realized by the Linux group, the various sub tasks are automatically allocated and run on various calculation cores, a datastream and a control stream are automatically realized by a network communication method, and human intervention is not required. The method has the advantages that: the Linux group is adopted in a signal processing hardware platform; as the Linux group is low in cost and easy in construction, the expandibility is higher and the calculation capability is strong. By adoption of a Linux operating system, a hardware platform and a software platform are separated and the signal processing programming is executed in a universal exploitation environment, so the difficulty of signal processing software is simplified. Due to adoption of a message passing interface (MPI) base for parallel program exploitation, the parallel calculation capability of the group is developed fully.

Description

technical field [0001] The invention belongs to the field of cluster parallel computers and the field of sonar signal processing, and mainly relates to a Linux cluster-based sonar real-time signal processing realization method. Background technique [0002] Sonar digital signal processing mainly completes digital signal processing functions such as beamforming, digital filtering, and spectrum analysis, and is an important part of modern digital sonar. At present, the sonar signal processing system is mainly implemented on a dedicated signal processor, which requires dedicated signal processing chips and data transmission hardware support. The topology of communication between boards and chips is fixed. As sonar signal processing becomes more and more Complicated, signal processors are often limited by bus and inter-board data transmission bottlenecks to improve computing power in the case of surges in computing and data scale. [0003] With the continuous development of son...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/539G06F9/46
Inventor 孔强文明彭玲刘辉涛
Owner THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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