Open AccessTrack‐before‐detect algorithm for airborne radar system
Author(s) -
Wang Yaru,
Wang Jinghe,
Wen Ming,
Yi Wei,
Kong Lingjiang
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0199
Subject(s) - track (disk drive) , radar , computer science , track before detect , radar systems , remote sensing , algorithm , real time computing , radar tracker , geology , telecommunications , operating system
This study considers the detection of dim target via track‐before‐detect (TBD) in airborne radar system. Dim target detection by TBD is well‐studied while aircraft ego‐motion is not taken into account. Ego‐motion of the aircraft (platform) causes traditional TBD method useless in airborne radar system by two reasons. On one hand, the movement of the aircraft causes measurement misaligned among different frames. On the other hand, state space and measurement space is non‐one‐to‐one correspondence. Considering these two issues, the authors proposed a TBD algorithm for airborne radar based on plots (AR‐P‐TBD). First, they derived coordinate rotation and motion compensation formula, and convert each frame of measurement into a unified coordinate system to make these measurements aligned. Then, TBD processing in measurement space is implemented. It avoids the non‐one‐to‐one correspondence between state space and measurement space. Simulation results demonstrate the effectiveness of AR‐P‐TBD.