Constrained Total Least Squares Localization Algorithm for Multistatic Passive Radar Using Bistatic Range Measurements

This paper investigates the problem of locating a target using multistatic passive radar system with multiple transmitters and multiple receivers. The bistatic range (BR), which corresponds to the sum of transmitter-to-target and target-to-receiver distances is used as the measurement. A constrained total least-squares (CTLS) solution for target position estimation is proposed. Firstly, linearize the BR measurement equations. Considering the errors in the both sides of location equations, the localization problem is established as a CTLS model. Then Newton ’s method is applied to solve the CTLS model. The performance of the proposed solution is verified with Monte-Carlo simulations.