Abstract
HF 통신은 별도의 중계 없이 근거리 및 장거리 통신이 가능한 방법으로 해외에서는 주/부 통신수단으로 활용되고 있으나, 국내에서는 도약지대 극복 문제와 전리층 변화에 따라 사용가능한 주파수가 변한다는 이유로 사용자 기피 현상이 심화된 상태였다. NVIS 통신은 일반적인 전리층 반사 통신에 비해 잡음이 적고 도약지대를 포함한 근거리내에서도 통신이 가능한 방법으로써, 이번 연구를 통해 HF 통신의 기존 단점들을 극복하고 HF 통신의 활성화를 위해 외국의 NVIS 통신방법에 대해서 실험을 통해 검증해 보았다. 본 논문에서는 NVIS 통신의 개념을 설명하고, 실제 국내의 HF 통신운용 현황을 확인하였다. 이를 바탕으로 NVIS 통신의 도약지대 극복가능성을 검증하였으며, 효율적인 HF 통신을 위한 예측프로그램의 적용가능성도 판단해보았다. The HF communication method is capable of communicating short and long distances without a separate relaying method and is used as the primary/secondary communication method in other nations. However, the Korean military strongly discouraged the use of the method due to issues regarding the skip zone and the fact that the usable frequency changes according to irregularities in the ionosphere. The NVIS communication is less susceptible to noise than typical communications using ionosphere reflection, and is also able to communicate short distances containing skip zones. In this paper, we inspect the NVIS communication methods of foreign nations in order to facilitate the use of HF communications, as well as provide solutions to the issues mentioned above. This paper explains the concept of NVIS communication, and investigates how the Korean military is implementing HF communications based on actual communications data of military corps. Based on this result, we have verified the possibility of overcoming skip zones through NVIS communications, and have considered the applicability of a prediction program in order to enhance the efficiency of HF communications.
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