| Digital Voice Ground Wave Range Analysis of HF Radios that Applied MELPe CODEC Using GRWAVE Program |
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Jin Heo, Sangjin Lee, Kangchun Lee, Sungwon Seo, Jungsup Kim, Sungwoo Han |
1C4I R&D Center, LIG Nex1 Co., Ltd.
2The 2nd Research and Development Institute, Agency for Defense Development |
| MELPe 코덱이 적용된 HF 무전기의 GRWAVE 분석 툴을 이용한 디지털 음성 지상파 통달거리 분석 |
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허진, 이상진, 이강천, 서성원, 김정섭, 한성우 |
1LIG넥스원(주) C4I연구소
2국방과학연구소 제2기술연구본부 |
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| Abstract |
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HF communications are used as a last means of long distance communications without any relay node in NLOS (Non Line-Of-Sight) environment. Conventional analog voice communication in the HF band is vulnerable to security as well as severe background noise. To overcome these shortcoming, digital voice was introduced into HF radios in the early 1980s. In this paper, we analyze avaliable digital voice communication ground wave range of HF radios that applied MELPe CODEC and MIL-STD-188-110B physical layer standard using GRWAVE program. And we evaluate usefulness of digital voice communication in HF band. |
| Key Words:
HF Radios, Ground Wave, Digital Voice, MELPe CODEC, Range Estimation |
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