A space-time beam-space ML algorithm for low-angle tracking

Author

Chen Jianwen ; Hui, Chen

Author_Institution

Nanjing Res. Inst. of Electron. Technol., China

Volume

3

fYear

2004

fDate

20-25 June 2004

Firstpage

3245

Abstract

In this paper, a modified space-time beam-space ML (STBSML) direction-of-arrival (DOA) algorithm is presented for low-angle tracking. The STBSML algorithm can precisely estimate the direct angle and the reflected angle of low-altitude targets, which is robust to small snapshots and low SNR by the temporal and spatial signal formation. The algorithm´s computation load is reduced by beam-space transformation. Theoretical analysis and numerical simulations illustrate that the STBSML algorithm outperforms the conventional ML method, and hence is available for VHF array radar applications.

Keywords

VHF antennas; array signal processing; direction-of-arrival estimation; linear antenna arrays; maximum likelihood estimation; radar antennas; radar signal processing; space-time adaptive processing; tracking; DOA algorithm; STBSML algorithm; VHF array radar; beam-space transformation; direct angle estimation; direction-of-arrival algorithm; low-altitude targets; low-angle tracking; numerical simulations; reflected angle; space-time beam-space ML algorithm; Direction of arrival estimation; Maximum likelihood estimation; Optical reflection; Radar tracking; Robustness; Sampling methods; Signal processing algorithms; Space technology; Target tracking; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1332071

Filename

1332071