无人机低空遥感船舶影像航行数据采集稳定性测试

Stability test of UAV low-altitude remote sensing ship image navigation data acquisition

针对传统无人机低空遥感船舶影像,数据采集稳定性测试技术,精确度较低的问题,设计新型航行数据采集稳定性测试技术。对无人机内部工作电路进行QD变换,获取无人机十二脉波变压整流器等效电路,对等效电路负载进行线性化分析,明确对应工作向量和关系,通过等效电路和负载线性关系求取并对比电路等效输出阻抗增益值,实现无人机低空要看船舶影像航行数据采集稳定性测试。实验数据表明,与传统方式相比,设计的测试技术在高电波影响下,测试精度提高19.5%,高风量环境下,测试精度提高22%,可以有效提高测试精度。

aiming at the problem of low accuracy of the stability test technology for the acquisition of low-altitude remote sensing ship image data of the traditional UAV, a new stability test technology for the collection of navigation data is designed. The QD transformation analysis is carried out on the inner working circuit of the UAV, the equivalent circuit of the UAV’s 12-pulse variable-voltage rectifier is obtained, the equivalent circuit load is linearized, the corresponding working vector and the relation formula are obtained, and the equivalent output impedance is used to realize the stability test of the UAV at low altitude by looking at the ship image navigation data collection. Experimental data show that compared with the traditional method, the designed test technology can improve the test accuracy by 19.5% under the influence of high airwaves and 22% under the environment of high air volume, which can effectively improve the test accuracy.