Emitter Tracking via Direct Target Motion Analysis

Abstract

This paper considers tracking of a non-cooperative emitter based on a single sensor. To this end, the direct target motion analysis (DTMA) approach, where the target state is straightforwardly achieved from the received signal, is exploited. In order to achieve observability, the sensor has to perform a maneuver relative to the emitter. By suitably building an approximated likelihood function, the unscented Kalman filter (UKF), which is able to work under high nonlinearity of the measurement model, is adopted to recursively estimate the target state. Besides, the posterior Cramér-Rao bound (PCRB) of DTMA, which can be used as performance benchmark, is also achieved. The effectiveness of proposed method is verified via simulation experiments.

Direct Target Joint Detection and Tracking Based on Passive Multi-Static Radar

“…In addition, the particle number adaptation strategy has also been discussed. In our previous work [22], direct tracking was accomplished based on a maneuvering single-sensor array exploiting the unscented Kalman filter.…”