High resolution time-frequency distribution for maneuvering target detection in over-the-horizon radars.
A novel high-resolution time-frequency representation method is proposed for source detection and class$ cation in ozier-the-horizon radar (OTHR) systems. A data-dependent kernel is applied in the ambiguity domain to capture the target signal components, which are then resolved using the root-MUSIC based coherent spectrum estimation. This inethod is particularly effective to analyze a multi-component signal with timevarying time-Doppler signatures. By .using the different time-Doppler signatures embedded in the inultipath signals, this proposed method can reveal important target maneuvering information, whereas other linear and bilinear time-frequency representation methods fail.
|Main Author:||Zhang, Yimin.|
|Other Authors:||Amin, Moeness G., Frazer, Gorodon J.|