Tracking low elevation targets in the presence of multipath propagation

Author

Bar-Shalom, Y. ; Kumar, Ajit ; Blair, W.D.

Author_Institution

Dept. of Electr. & Syst. Eng., Connecticut Univ., Storrs, CT

Volume

30

Issue

3

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

973

Lastpage

979

Abstract

A tracking algorithm based on a measurement model of the multipath propagation effects on the elevation angle measurements is presented. This algorithm does not depend on the specific signal processing and the prevailing environmental conditions. The results of simulations based on several scenarios are presented. The signal processing model used to generate the elevation measurements of a low-flying target with multipath effects is also described. This mode incorporates a spherical Earth and finite target range in the geometry of reflection. The algorithm clearly indicates when the measurements are degraded, in which case it automatically increases the variance of the altitude estimate

Keywords

radar theory; radiowave propagation; signal detection; state estimation; tracking; altitude estimate; elevation angle measurements; finite target range; geometry of reflection; low elevation targets; low-flying target; measurement model; multipath propagation; signal processing model; simulation; spherical Earth; tracking algorithm; Degradation; Goniometers; Noise measurement; Radar signal processing; Radar tracking; Sea measurements; Signal generators; Signal processing algorithms; Surface waves; Target tracking;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.303775

Filename

303775