机载激光雷达通信网络测距大数据均衡调度

    Airborne LiDAR Communication Network Ranging Data Balancing Scheduling

    • 摘要: 由于机载激光雷达通信网络节点本身的通信距离有限,存在测距节点的硬件资源不均衡、节点能量有限、通信干扰等问题。对此,提出均衡聚类下的机载激光雷达测距大数据调度方法。基于小波变换中的非线性尺度变换结构对采集到的雷达测距大数据去噪处理。使用K-means++算法和局部搜索策略进行分区,使用基于密度的噪声应用空间聚类算法分析不同聚类结果的关联特征。引入自适应权重学习方法,提取输出雷达通信网络节点特征量,将原始特征向量与归一化的节点分布量化值融合,构建新的测距大数据网络调度特征向量。实验测试结果表明:所提方法在雷达通信网络测距节点调度应用中,内存使用率降低至62 % 以下,能耗降低至1 200 J以下,执行时间降低至40 ms以下,提升了均衡聚类调度应用效果。

       

      Abstract: Due to the limited communication distance of the nodes in the airborne LiDAR communication network, issues such as imbalanced hardware resources among ranging nodes, limited node energy, and communication interference exist. In response to these issues, a ranging data scheduling method for airborne LiDAR ranging based on balanced clustering is proposed. The collected radar ranging data is denoised using the nonlinear scale transformation structure in wavelet transform. Partitioning is performed using the K-means++ algorithm and a local search strategy, and the association features of different clustering results are analyzed using a density-based spatial clustering of applications with noise algorithm. An adaptive weight learning method is introduced to extract the feature quantities of the output radar communication network nodes, and the original feature vectors are fused with normalized node distribution quantized values to construct new network scheduling feature vectors for ranging data. Experimental test results show that, in the application of ranging node scheduling in radar communication networks, the proposed method has resulted in a reduction of memory usage to below 62 %, energy consumption to below 1 200 J, and execution time to below 40 ms, thereby enhancing the effectiveness of balanced clustering scheduling.

       

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