An Efficient Estimator for Moving Target Localization Using Multi-Station Dual-Frequency Radars

作者：Huang, Jiyan^*; Zhang, Ying; Luo, Shan

来源：Sensors (Switzerland), 2017, 17(12): 2914.

DOI：10.3390/s17122914

• moving target localization
• Cramer-Rao lower bound (CRLB)
• dual-frequency radar
• closed-form solution
• range estimation
• weighted least squares estimator

Localization of a moving target in a dual-frequency radars system has now gained considerable attention. The noncoherent localization approach based on a least squares (LS) estimator has been addressed in the literature. Compared with the LS method, a novel localization method based on a two-step weighted least squares estimator is proposed to increase positioning accuracy for a multi-station dual-frequency radars system in this paper. The effects of signal noise ratio and the number of samples on the performance of range estimation are also analyzed in the paper. Furthermore, both the theoretical variance and Cramer-Rao lower bound (CRLB) are derived. The simulation results verified the proposed method.

• 出版日期2017-12
• 单位电子科技大学