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针对无人机巡检中遇到的干扰,采用了抗干扰分段编码方案。提出了基于认知OFDM方法,构造一个较低的冗余优化设计方法。抗干扰段编码方案可以恢复丢失的数据包、穿过双奇偶校验数据包,避免突发干扰的主要用户的认知用户通信过程。实验结果表明,该方案比未编码方案具有更低的误帧率和更高的吞吐量性能,使得无人机的抗干扰性能得到提高。
For the interference encountered in the UAV inspection, using anti-jamming sub-coding scheme. Based on the cognitive OFDM method, a low redundancy optimization design method is proposed. Anti-interference segment coding scheme can recover lost packets, through double parity packets, to avoid sudden interference of the main user cognitive user communication process. The experimental results show that this scheme has lower frame error rate and higher throughput than the uncoded scheme, and improves the anti-jamming performance of the UAV.