基于LabWindows/CVI的主动声呐 信号发射机设计
DOI:
作者:
作者单位:

海军航空工程学院电子信息工程系 烟台 264001

作者简介:

通讯作者:

中图分类号:

TN02

基金项目:


Design of Active Sonar Signal Transmitter based on LabWindows/CVI
Author:
Affiliation:

Department of Electronic and Information Engineering of Naval Aeronautical and Astronautical University,Yantai 264001,China

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    本文介绍了一种利用虚拟仪器技术[1],通过NI数据采集卡及后续放大电路产生主动声呐信号的方法。本文以产生单频矩形脉冲信号(CWP)为例,软件设计中采用定时器查询和信号触发的方式产生信号,相比现有采用产生脉冲矩阵并延时发射的办法,具有调整更加方便灵活,精度更高的优点。硬件设计采用稳定可靠的成熟器件,确保系统在外场环境工作的可靠性。通过多路选通放大电路实现宽范围的声源级发射,通过高保真的集成功率放大器减少信号在发射过程中的畸变和噪声的引入[2]。相比传统发射机,微小的数据采集卡和放大电路可内置于工控机机箱内,作为便携式声呐信号发射机。

    Abstract:

    This paper gives a method using virtual instruments technology to generate sonar signal by NI DAQ card and amplifying circuit[1]. This paper gives an example of generating CWP signal. In design of software, it generates signal by the way of timer querying and signal triggering. Existing method generates an array then delay to transmit. Method introduced in this paper, by contrast, is more flexible and has a higher degree of accuracy. Hardware design adopts stable and mature chips, to make sure the system can perform well in outfield. Multiple strobe circuits achieve a wide range of SL. High-fidelity integrated power amplifiers reduce the distortion of the signal during transmission and the introduction of noise[2].Compared with traditional sonar signal transmitter, the micro DAQ card and amplifying circuit can be put inside the industrial control computer, used as a portable sonar signal transmitter.

    参考文献
    相似文献
    引证文献
引用本文

杨广利,杨日杰,韩建辉,郑晓庆.基于LabWindows/CVI的主动声呐 信号发射机设计[J].国外电子测量技术,2017,36(6):81-84

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2017-07-19
  • 出版日期: