A Novel LOS Decision Technique Reflecting 3D DTED for Modeling an Electronic Warfare Environment

Jaejoong Lee,Kyung Tae Park,Hyeon Hwi Lee,Kangwook Kim,Hyun-Kyo Jung,Chiho Lee

doi:10.3390/app11010409

Abstract

A new line-of-sight (LOS) decision algorithm applicable to simulation of electronic warfare (EW) is developed. For accurate simulation, the digital terrain elevation data (DTED) of the region to be analyzed must be reflected in the simulation, and millions of datasets are necessary in the EW environment. In order to obtain real-time results in such an environment, a technology that determines line-of-sight (LOS) quickly and accurately is very important. In this paper, a novel algorithm is introduced for determining LOS that can be applied in an EW environment with three-dimensional (3D) DTED. The proposed method shows superior performance as compared with the simplest point-to-point distance calculation method and it is also 50% faster than the conventional interpolation method. The DTED used in this paper is the data applied as level 0 for the Republic of Korea, and the decision of the LOS at approximately 1.8 million locations viewed by a reconnaissance plane flying 10 km above the ground is determined within 0.026 s.

Highlights

Department and Computer Engineering, Seoul National University, Seoul 08826, Korea; Electronic Warfare R&D Center, LIG Nex1 Co., Ltd., Gyeonggi-do 16911, Korea; School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Abstract: A new line-of-sight (LOS) decision algorithm applicable to simulation of electronic warfare (EW) is developed
Modeling and simulation (M&S) technology provides an experimental environment in a virtual space for predicting and verifying situations that are difficult or impossible to reproduce in reality
An intuitive way to determine if a signal path is LOS is to form a line by connecting the jammer and the object, and check the digital terrain elevation data (DTED) data to determine whether there are any higher points along the created line [8,11]

Summary

Introduction

In order to obtain real-time results in such an environment, a technology that determines line-of-sight (LOS) quickly and accurately is very important. A novel algorithm is introduced for determining LOS that can be applied in an EW environment with threedimensional (3D) DTED. Techniques that can deny an enemy’s effort in information acquisition through the EM spectrum is important. M&S technology is especially useful in the defense sector, where real system evaluation may be risky and requires significant cost. One such example is modeling of an electronic warfare (EW) environment, which may involve a continent-size field, harmful electromagnetic radiation, etc. Considerable efforts are underway to develop EW simulators to incorporate the merits of M&S into EW [5,6,7]

Methods

Results

Conclusion