Application of Adaptive Coded Modulation Technology in UAV Data Link

• 作者: Deting Hu Rui Xue Tielin Zhu
• 来源期刊: 通讯、网络与系统学国际期刊(英文)
• 学科: 工学
• 关键词: UAV Data Link ADAPTIVE CODED Modulation MARITIME Channel SNR Estimation Target BIT-ERROR-RATE
• 年，卷（期）: 2017,（5）
• 页码范围: 181-190
• 页数: 10页
• 分类号: TN91

摘要

UAV data link has been considered as an important part of UAV communication system, through which the UAV could communicate with warships. However, constant coding and modulation scheme that UAV adopts does not make full use of the channel capacity when UAV communicates with warships in a good channel environment. In order to improve channel capacity and spectral efficiency, adaptive coded modulation technology is studied. Based on maritime channel model, SNR estimation technology and adaptive threshold determination technology, the simulation of UAV data link communication is carried out in this paper. Theoretic analysis and simulation results show that according to changes in maritime channel state, UAV can dynamically adjust the adaptive coded modulation scheme on the condition of meeting target Bit-Error-Rate (BER), the maximum amount of data transfer is non-adaptive systems three times.