一种无人机数据链信道选择和功率控制方法

发布时间：2018-02-27 02:05

本文关键词： 无人机(UAV)数据链信道选择功率控制信道质量相关向量回归(RVR)　出处：《北京航空航天大学学报》2017年03期 　论文类型：期刊论文

【摘要】：无人机(UAV)数据链在复杂电磁和地理自然环境中可靠性受到严重威胁,针对如何通过选择信道和调整信号发送功率保证UAV通信质量的问题,提出了一种结合相关向量回归(RVR)的信道选择和功率控制方法。方法采用RVR建立干扰信息、误码率(BER)与信噪比(SNR)的映射模型,通过该模型可根据实时干扰参数,预测信道满足UAV数据链BER要求的最小化SNR,进而可计算最小化的发送功率,把最小化功率作为标准判断信道质量好坏,选择信道的同时确定发送功率,简化过程,以最小化信道发送功率达到抗干扰的目的。仿真实验证明,该方法能够有效选择可用信道并调整发送功率,抑制干扰,时间和能量开销低,具有较强实用性。
[Abstract]:The reliability of UAV data link in complex electromagnetic and geographical environment is seriously threatened. Aiming at how to ensure the quality of UAV communication by selecting channel and adjusting signal transmission power. A method of channel selection and power control based on correlation vector regression (RVR) is proposed. The mapping model of interference information, bit error rate (ber) and signal-to-noise ratio (SNR) is established by using RVR. The model can be used according to the real-time interference parameters. The prediction channel meets the BER requirements of the UAV data link and can calculate the minimum transmission power. The minimum power is taken as the standard to judge the channel quality, and the transmission power is determined while the channel is selected, which simplifies the process. The simulation results show that the proposed method can effectively select available channels and adjust the transmission power to suppress interference. The time and energy cost is low and the method has strong practicability.
【作者单位】：北京航空航天大学电子信息工程学院;北京航空航天大学无人驾驶飞行器设计研究所;北京航空航天大学计算机学院;
【基金】：国家“863”计划(2013AA122101)~~
【分类号】：V279;TN919.2

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