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DPD Algorithm for Moving Source Based on Doppler Frequency Shifts: Case of Known Waveforms

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We focus on the Direct position determination (DPD) of a moving narrowband source based on Doppler frequency shifts of signals with known waveforms.Two common motion models are considered: the Constant velocity (CV) model and the Constant acceleration (CA) model.The DPD cost function is obtained after some algebraic manipulations using the Maximum likelihood (ML) criterion.To develop a computationally efficient optimization algorithm,we present a preliminary mathematical result that plays a fundamental role in development of the proposed algorithm.Subsequently,a Newton iterative algorithm is tailored to the two motion models to determine the moving transmitter's trajectory.When compared with multidimensional grid searching,the proposed algorithm is more computationally attractive without compromising its estimation accuracy.Simulation results confirm the superiority of the proposed algorithm.

Direct position determination (DPD)Doppler frequency shiftsMoving emitterKnown waveforms

WANG Ding、YIN Jiexin、YU Hongyi

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Institute of Information System Engineering, Information Engineering University, Zhengzhou 450001, China

This work is supported by the National Natural Science Foundation of ChinaThis work is supported by the National Natural Science Foundation of ChinaThis work is supported by the National Natural Science Foundation of ChinaNational Science Foundation for Post-doctoral Scientists of ChinaSelf-Topic Foundation of Information Engineering UniversityOutstanding Youth Foundation of Information Engineering University

6120138161401513617725482016M59298920166007012016603201

2019

10.1049/cje.2019.06.006

中国电子杂志(英文版)

中国电子杂志(英文版)

CSTPCDCSCDSCIEI
ISSN：1022-4653
年,卷(期)：2019.28(5)
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