Low-angle Estimation Based on Multi-frequency Maximum Likelihood

DOI

10.2991/icmt-13.2013.54How to use a DOI?

Keywords

multipath; low-angle estimation; Maximum Likelihood Method; multi-frequency

Abstract

Amony various low-angle estimation methods, MUSIC method and Maximum Likelihood(ML) Method are representative, but the classical MUSIC method can not directly process coherent signal and need spatial smoothing techinique to decorrelate the coherence of the direct and reflected echo, which would reduce spatial resolution ratio. In order to deal with this problem, a new estimation method using multi-frequency signal for low-angle targets is proposed in this pa-per. First sequential transmission several different frequencies in pulse-to-pulse is applied to decorrelate the coherence of the direct and reflected echo, then the Al-ternating Projection(AP) Method is combined with Maximum Likelihood Method to simplify the numeration. Finally, the simulation results show that the algorithm can improve the estimation performance of low-angle radar.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Cao Yunhe
AU  - Chen Ting
AU  - Wang Shenghua
PY  - 2013/11
DA  - 2013/11
TI  - Low-angle Estimation Based on Multi-frequency Maximum Likelihood
BT  - Proceedings of 3rd International Conference on Multimedia Technology(ICMT-13)
PB  - Atlantis Press
SP  - 439
EP  - 446
SN  - 1951-6851
UR  - https://doi.org/10.2991/icmt-13.2013.54
DO  - 10.2991/icmt-13.2013.54
ID  - Yunhe2013/11
ER  -