Localization Scheme of Multistatic Radars System Based on the Information of Measured Signal

Wen, Jyh‐Horng; Li, Jheng-Sian; Yang, Cheng-Ying; Chen, Chun‐Hung; Chen, Hsing‐Chung

doi:10.1109/bwcca.2014.136

Cited by 7 publications

(1 citation statement)

References 11 publications

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“…There are many positioning methods for multistatic radar systems, for example, target positioning based on the combination of the time difference of arrival (TDOA), the frequency difference of arrival (FDOA) and the angle of arrival (AOA). The author of [6] proposes a weighted least squares (WLS) scheme to estimate the target location in the TRM multistatic radar system by considering the measured azimuth angle and the measured elevation angle. An iterative double extended Kalman filter (EKF) algorithm is proposed to locate mobile transmitters by using TDOA and FDOA [7].…”

Section: Introductionmentioning

confidence: 99%

Distributed Multistatic Sky-Wave Over-The-Horizon Radar Based on the Doppler Frequency for Marine Target Positioning

Ren¹,

Gao²,

Yang³

2021

Electronics

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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.

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Section: Introductionmentioning

confidence: 99%