Distributed Multistatic Sky-Wave Over-The-Horizon Radar Based on the Doppler Frequency for Marine Target Positioning
Open Access
- 18 June 2021
- journal article
- research article
- Published by MDPI AG in Electronics
- Vol. 10 (12), 1472
- https://doi.org/10.3390/electronics10121472
Abstract
Maritime safety issues have aroused great attention, and it has become a difficult problem to use the sky-wave over-the-horizon radar system to locate foreign targets or perform emergency rescue quickly and timely. In this paper, a distributed multi-point sky-wave over-the-horizon radar system is used to locate marine targets. A positioning algorithm based on the Doppler frequency is proposed, namely, the two-step weighted least squares (2WLS) method. This algorithm first converts the WGS-48 geodetic coordinates of the transceiver station to spatial rectangular coordinates; then, introduces intermediate variables to convert the nonlinear optimization problem into a linear problem. In the 2WLS method, four mobile transmitters and four mobile receivers are set up, and the Doppler frequency is calculated by transmitting and receiving signals at regular intervals; it is proven that the 2WLS algorithm has always maintained a better positioning accuracy than the WLS algorithm as the error continues to increase with a certain ionospheric height measurement error and the Doppler frequency measurement error. This paper provides an effective method for the sky-wave over-the-horizon radar to locate maritime targets.Keywords
Funding Information
- National Natural Science Foundation of China (No.61671333)
- Natural Science Foundation of Hubei Province (No.2014CFA093)
- Fundamental Research Funds for the Central Universities (No.2042019K50264, No.2042019GF0013 and 2042020gf0003)
- Fundamental Research Funds for the Wuhan Maritime Communication Research Institute (No. 2017J-13)
This publication has 21 references indexed in Scilit:
- TDOA collaborative localization algorithm based on PSO and Newton iteration in WGS-84 coordinate systemPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2017
- High-Resolution Direct Position Determination Using MVDRIEEE Transactions on Wireless Communications, 2016
- A variable neighborhood search based feature selection model for early prediction of the Alzhemier's diseasePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2016
- An Efficient Direct Position Determination Algorithm Combined with Time Delay and DopplerCircuits, Systems, and Signal Processing, 2015
- MIMO-OTH Radar: Signal Model for Arbitrary Placement and Signals With Non-Point TargetsIEEE Transactions on Signal Processing, 2015
- Multiple target localization & data association for frequency-only widely separated MIMO radarDigital Signal Processing, 2014
- Estimating Target Heights Based on the Earth Curvature Model and Micromultipath Effect in Skywave OTH RadarJournal of Applied Mathematics, 2014
- Doppler Shift Based Target Localization Using Semidefinite RelaxationIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2014
- Frequency-based target localization methods for widely separated MIMO radarRadio Science, 2013
- Ionosphere state and parameter estimation using the Ensemble Square Root Filter and the global three‐dimensional first‐principle modelSpace Weather, 2012