一种提高频谱利用率的航空导航台站频率指配算法

针对多个新建航空无线电导航台站高效频率指配问题，根据美国联邦航空管理局( FAA)的频谱管理规范，研究了在已有多台站场景下的频率指配算法。总结了导航台站频率指配的复用干扰和频率配对两个约束条件，给出了提高频谱利用率的频率指配度量准则，设计了单个新建台站的频率指配算法，给出了多台站频率指配的深度优先递归搜索算法。数值仿真结果表明，所提算法在为多个新建台站同时指配频率时，可有效提高频谱利用率。

An efficient frequency allocation algorithm for improving spectrum utilization of aeronautical navigation aid facilities

In order to efficiently allocate spectrum resource for aeronautical navigational aid( NAVAID) fa-cilities under the scenario with many stations, spectrum allocation algorithms are proposed based on the spectrum management regulation of Federal Aviation Administration ( FAA ) . With the constraints of fre-quency reuse interference and frequency pairing,a spectrum efficiency oriented metric is first proposed,and on this base,a spectrum allocation algorithm is provided for the case of a single-station. Then,a depth-first searching based spectrum allocation method is further proposed for the case of multi-stations. Numeri-cal simulation results show that the proposed spectrum allocation algorithms can assign frequencies for all applied stations with high spectrum utilization.