1. School of Electrical and Electronics EngineeringChung‐Ang UniversitySeoul06974Republic of Korea
2. C4I R&D Center, LIG Nex1 Company, SeongnamRepublic of Korea
3. Defense Industry Technology Center, Agency of Defense DevelopmentSeoulRepublic of Korea
4. Department of Information and Communication EngineeringHanbat National UniversityDaejeon305‐719Republic of Korea