CAJ | 학술논문

该文针对无人机高速率下行数据链通信中存在的码间干扰和多径衰落，在对无人机信道进行建模的基础上，采用了迫零均衡（ZeroForcing，ZF）和最小均方误差均衡（MinimumMeanSquareError，MMSE）两种算法的单载波频域均衡（SingleCarrierFrequencyDomainEqualization，SC—FDE）技术对此码间干扰和多径衰落进行了抑制；通过仿真得到采用SC—FDE技术使得误码率明显下降，从而验证了在无人机高速率下行数据链通信中，采用SC—FDE技术能有效抑制码间干扰和多径衰落。
해문침대무인궤고속솔하행수거련통신중존재적마간간우화다경쇠락，재대무인궤신도진행건모적기출상，채용료박령균형（ZeroForcing，ZF）화최소균방오차균형（MinimumMeanSquareError，MMSE）량충산법적단재파빈역균형（SingleCarrierFrequencyDomainEqualization，SC—FDE）기술대차마간간우화다경쇠락진행료억제；통과방진득도채용SC—FDE기술사득오마솔명현하강，종이험증료재무인궤고속솔하행수거련통신중，채용SC—FDE기술능유효억제마간간우화다경쇠락。
In view of the inter-symbol interference and mnltipath fading existed in the high-speed data communication of UAV（unmanned aerial vehicle） downlink, two algorithms with SC-FDE technology are adopted to suppress this ISI（inter-symbol interference） and multipath fading, and simulation indicates that the SC-FDE technology could make the error rate much lower and thus effectively suppress ISI and multipath fading in the high-speed data communication of UAV downlink.