A Fans-Shaped Beam Antenna Design for Overcoming Multipath Effects for 77GHz FMCW-MIMO Radar

This paper focuses on the target detection in low-grazing angle using a hybrid multiple-input multiple-output (MIMO) radar systems in compound-Gaussian clutter, where the multipath effects are very abundant. The performance of detection can be improved via utilizing the multipath echoes. First, the reflection coefficient considering the curved earth effect is derived. Then, the general signal model for MIMO radar is introduced in low-grazing angle; also, the generalized likelihood test (GLRT) and generalized likelihood ratio test-linear quadratic (GLRT-LQ) are derived with known covariance matrix. Via the numerical examples, it is shown that the derived GLRT-LQ detector outperforms the GLRT detector in low-grazing angle, and both performances can be enhanced markedly when the multipath effects are considered.

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Handbook of Antenna Design, Vol. 2

10.1049/pbew015g ◽

1983 ◽

Cited By ~ 100

Keyword(s):

Antenna Design

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Handbook of Antenna Design, Vol. 1

10.1049/pbew015f ◽

1982 ◽

Cited By ~ 148

Keyword(s):

Antenna Design

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Experimental Study on Two-Dimensional Position Estimation Method by Stepped-FM MIMO Radar using 2D-MUSIC Method

IEEJ Transactions on Electronics Information and Systems ◽

10.1541/ieejeiss.138.112 ◽

2018 ◽

Vol 138 (2) ◽

pp. 112-117

Author(s):

Kenshi Ogawa ◽

Akihiro Kajiwara

Keyword(s):

Experimental Study ◽

Estimation Method ◽

Mimo Radar ◽

Position Estimation ◽

Two Dimensional

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Structural and Electrical Characterization of Shaped Beam Laser Recrystallized Polysilicon on Amorphous Substrates

MRS Proceedings ◽

10.1557/proc-4-499 ◽

1981 ◽

Vol 4 ◽

Author(s):

T. J. Stultz ◽

J. F. Gibbons

Keyword(s):

Grain Size ◽

Electrical Characterization ◽

Grain Structure ◽

Electrical Characteristics ◽

Shaped Beam ◽

Beam Laser ◽

Cw Laser ◽

Amorphous Substrates ◽

Circular Beam

ABSTRACTStructural and electrical characterization of laser recrystallized LPCVD silicon films on amorphous substrates using a shaped cw laser beam have been performed. In comparing the results to data obtained using a circular beam, it was found that a significant increase in grain size can be achieved and that the surface morphology of the shaped beam recrystallized material was much smoother. It was also found that whereas circular beam recrystallized material has a random grain structure, shaped beam material is highly oriented with a <100> texture. Finally the electrical characteristics of the recrystallized film were very good when measured in directions parallel to the grain boundaries.

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