An Improved Algorithm for the Passive Acoustic Direction Orientation of Helicopters

:Chen Huawei;Zhao Junwei;:Cai Zongyi;Xu Xuezhong

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2001, Vol. 22 ›› Issue (4) : 504-507. DOI: 10.3969/j.issn.1000-1093.2001.04.019
Paper

An Improved Algorithm for the Passive Acoustic Direction Orientation of Helicopters

  • 1:Chen Huawei, Zhao Junwei ;2:Cai Zongyi,Xu Xuezhong
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Abstract

In this paper, the application of phase spectrum time delay estimation (PSTDE) in helicopter passive acoustic orientation is presented, and an approach for improving the accuracy of PSTDE is pro?posed .Computer simulation with the helicopter noise under various conditions is also included . The given approach is tested to be effective and the simulation results show that it has better estimation accuracy and robustness ? It is concluded that the approach has its value and perspective in its engineering applications.

Key words

time delay estimation / phase spectrum / helicopter passive acoustic direction

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1:Chen Huawei, Zhao Junwei ;2:Cai Zongyi,Xu Xuezhong. An Improved Algorithm for the Passive Acoustic Direction Orientation of Helicopters. Acta Armamentarii. 2001, 22(4): 504-507 https://doi.org/10.3969/j.issn.1000-1093.2001.04.019

References

[1] Piersol A G. Time delay estimation using phase data. IEEE lrans Acoust Speech Signal Processing, ASSP, 1981, 29(3) ： 471 ?477
[2] 赵真，候自强.广义相位谱延时估计.声学学报，1935,10(4): 202?205
[3] 克劳切RE.多抽样率数字信号处理.北京:人民邮电出版社， 1988.10?20
[4] 王昭.小基阵高精度声测被动定位的研究:[博士学位论文].西 安:西北エ业大学，1999.

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