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 real-time signal processing of sonar based on Linux cluster, can solve problems such as limiting computing power, and achieve the effect of powerful computing power, simplified difficulty and easy construction

Active Publication Date: 2011-09-14
THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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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 b

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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] The present invention will be further described below in conjunction with the drawings and embodiments:

[0031] The present invention proposes a real-time signal processing method for sonar based on Linux cluster, and uses Linux cluster as the signal processing hardware platform. 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 subtasks. The allocation of hardware resources and data links are automatically completed by the Linux cluster. Each subtask is automatically allocated and run on each computing core. Data flow and control flow are automatically realized through network communication. , No need for human intervention. The sonar signal processing task that does not depend on hardware is realized, and the flexibility and reconfigurability of software development are greatly improved.

[0033] The Linux cluster used ...

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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 is mainly a real-time signal processing method of sonar based on Linux cluster. Background technique [0002] Sonar digital signal processing mainly completes digital signal processing functions such as beam forming, 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 topological structure 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 in the case of a surge in computing and data scale. [0003] With the continuous development of sonar systems in the direction of ne...

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Application Information

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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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