Direct Position Determination Using Asynchronous Observations of Multiple Moving Sensors

FENG Qi; QU Changwen; ZHOU Qiang

doi:10.11999/JEIT160314

Volume 39 Issue 2

Feb. 2017

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Article Navigation > Journal of Electronics & Information Technology > 2017 > 39(2): 417-422

FENG Qi, QU Changwen, ZHOU Qiang. Direct Position Determination Using Asynchronous Observations of Multiple Moving Sensors[J]. Journal of Electronics & Information Technology, 2017, 39(2): 417-422. doi: 10.11999/JEIT160314

Citation:

FENG Qi, QU Changwen, ZHOU Qiang. Direct Position Determination Using Asynchronous Observations of Multiple Moving Sensors[J]. Journal of Electronics & Information Technology, 2017, 39(2): 417-422. doi: 10.11999/JEIT160314

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Direct Position Determination Using Asynchronous Observations of Multiple Moving Sensors

doi: 10.11999/JEIT160314

1.
(Department of Electronic and Information Engineering, Naval Aeronautical and Astronautical University, Yantai 264001, China)
2.
(Scientific Research Department, Naval Aeronautical and Astronautical University, Yantai 264001, China)

Received Date: 2016-04-01
Rev Recd Date: 2016-09-01
Publish Date: 2017-02-19

Abstract

Abstract

A Direct Position Determination (DPD) algorithm based on spatial spectrum analysis for the issue of asynchronous observation in the multiple moving sensors passive fusion location system is proposed. At first, a direct determination mathematical model of the asynchronous scene is constructed and a multiple sensors cooperative spatial spectrum function is composed. Furthermore, the position of the emitter can be got by a two or three dimensional search, and then the derivations of the estimators variance and the Cramer-Rao Lower Bound (CRLB) are given. Finally, the Monte Carlo simulations over the asynchronous scene indicate that the accuracy of the proposed method is close to the Cramer-Rao lower bound and superior to the two-step location method based on the location parameters, especially in the low SNR.
- Passive location,
- Asynchronous observation,
- Direct Position Determination (DPD),
- Array signal processing,
- Angle of arrival

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References(20)

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