Target localisation from bistatic range measurements in multistatic passive radar using MDS

• Main Authors: Yongsheng Zhao, Zhixin Liu, Dexiu Hu, Yongjun Zhao, Chuang Zhao
• Format: Article
• Language: English
• Published: Wiley 2019-07-01
• Series: The Journal of Engineering
• Subjects: time-of-arrival estimation; matrix algebra; optimisation; least squares approximations; sensor arrays; object detection; interpolation; passive radar; target localisation; bistatic range measurements; multistatic passive radar system; multiple transmitter–receiver pairs; closed-form solution; multidimensional scaling analysis technique; scalar product matrix; classical MDS framework; relatively higher measurement noise level
• Online Access: https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0396

The target localisation in a multistatic passive radar system using bistatic range measurements from multiple transmitter–receiver pairs is considered. A novel closed-form solution employing multidimensional scaling (MDS) analysis technique is proposed, which is based on the optimisation of a cost function related to the scalar product matrix in the classical MDS framework. The proposed solution is robust to large measurement noise. Simulation results demonstrate the proposed solution achieves a significant performance improvement over existing spherical interpolation, spherical intersection and two-step weighted least squares methods, and attains the Cramer–Rao lower bound at a relatively higher measurement noise level before the threshold effect occurs.