Efficient ionospheric model using wavelet for geomagnetic storm Nov 1, 2008· Youngho Sohn Ho Yun Changdon Kee · 0 min read Last updated on Nov 1, 2008 Authors Youngho Sohn Ph.D Authors Ho Yun Ph.D Authors Changdon Kee Professor ← Modified High Resolution Correlator Scheme for Improving the Performance of Short Delay Multipath Mitigation Nov 1, 2008 소형체공형 무인기용 저속 단일안테나 GPS 기반 비행제어시스템 설계 연구 Nov 1, 2008 →