Aerospace and Electronic Systems Magazine December 2017 - 3

EXPERIMENTAL RESULTS FOR MIMO METHODS APPLIED IN OVER-THE-HORIZON RADAR
This article reports results of an experimental program called the Mode Selection Experiment that was designed to demonstrate
ionospheric mode selectivity on transmit over a one-way skywave propagation path. The purpose of the experiment was to show that
multiple-input multiple-output radar techniques can be used to construct, after reception, the required multiple simultaneous adaptive
range-dependent transmitter beams needed in a Mode-Selective Over-the-Horizon Radar, which is a new class of skywave radar designed for Maritime Domain Awareness and other clutter-limited applications. The results show that a transmit beam can be created
following signal transmission, propagation and reception, and applied to selectively illuminate desirable ionospheric propagation
paths while simultaneously nulling undesirable propagation paths.

ADAPTIVE MANEUVERING TARGET TRACKING WITH 2-HFSWR MULTI-SENSOR SURVEILLANCE SYSTEM
The high frequency surface wave radar (HFSWR) is very important for wide area of marine surveillance. However, limited to
low azimuth resolution, it is difficult for HFSWR to track the maneuvering target precisely. While the 2-HFSWR multi-sensor
surveillance system with 2 radar stations can locate the moving target without using the azimuth measurement. In this article, an
interacting multiple model adaptive strong tracking filter (IMMASTF) is proposed for the 2-HFSWR multi-sensor surveillance
system, wherein the strong tracking filter (STF) and the Saga-Husa adaptive filter are combined with the interacting multiple
model (IMM) algorithm to improve the stability and precision of tracking targets without using the statistical properties of
measurement noises. Simulation results show that IMMASTF has better tracking performance than the conventional IMM
algorithm for tracking maneuvering vessel targets under complex environment with unknown measurement noises.

DOI. No. 10.1109/MAES.2017.171201

From the Editors of the Special Issue on HF Skywave Radar
Daniel W. O'Hagan, Gordon Frazer, Joe Fabrizio, Stuart Anderson

he idea for this Special Issue on HF Radar was conceived in
early 2016 and refined at the 2016 IEEE Radar Conference
in Philadelphia where the four Guest Editors-to-be were all
present. Lamenting the rather fragmented nature of the literature
on HF radar and, indeed, of the HF radar community itself, we
decided that a special issue of a popular and authoritative journal
would serve to expose the state-of-the-art of our discipline to the
wider engineering community and, simultaneously, reinvigorate

Daniel W. O'Hagan

Joe Fabrizio

links between the various active research groups. The choice of the
IEEE Aerospace and Electronic Systems Magazine as our medium
was a no-brainer.
The next step was to engage the international HF radar research
community. In parallel with the Call-for-Papers, we contacted active researchers in the field around the world and encouraged them
to participate. These efforts bore a rich harvest. By the time of the
first submission deadline, we had fifteen contributions, representing

Gordon Frazer

Stuart Anderson

From the Editors of the Special Issue on HF Skywave Radar continued on page 17.
DECEMBER 2017

IEEE A&E SYSTEMS MAGAZINE

Table of Contents for the Digital Edition of Aerospace and Electronic Systems Magazine December 2017