An electromagnetic inverse problem solver for radar: aircraft rotation and tilt measurement

Author

Kirubarajan, T. ; Hoole, P.R.P.

Author_Institution

Dept. of Comput. Sci., Peradeniya Univ., Sri Lanka

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1767

Lastpage

1770

Abstract

A Doppler radar is used to obtain the velocity, altitude, and distance of an aircraft with respect to the radar coordinates. It is shown that the reflected electromagnetic fields picked up by the receiver antenna also contain information on the rotation angle and tilt angle of the aircraft, which could be obtained using a maximum-likelihood estimation algorithm. The electromagnetic signal processing unit estimates the angles of rotation and tilt and the radius of the target modeled as a cylinder using the scattered magnetic field. Specific results showing the application of the estimator are given

Keywords

aircraft; angular measurement; electromagnetic fields; inverse problems; maximum likelihood estimation; microwave landing systems; radar applications; Doppler radar; aircraft distance; aircraft rotation measurement; altitude; electromagnetic inverse problem solver; electromagnetic signal processing; helicopter rotor blades; maximum-likelihood estimation algorithm; microwave landing system; radar coordinates; receiver antenna; reflected electromagnetic fields; rotation angle; scattered magnetic field; tilt angle; tilt measurement; velocity; Airborne radar; Aircraft; Doppler radar; Electromagnetic fields; Electromagnetic scattering; Inverse problems; Radar antennas; Receiving antennas; Reflector antennas; Signal processing algorithms;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250747

Filename

250747