传播模型驱动的三维频谱地图测绘研究

频谱地图是频谱资源管理、安全治理和频谱作战等应用的基础。针对传统频谱测绘局限于二维空间的问题,给出了一种面向空天地一体化需求的三维频谱数据采集和测绘系统架构,提出了一种传播模型驱动的频谱地图重构方案,能够实现稀疏采样条件下高精度的三维频谱地图绘制。该方法在单辐射源和多辐射源情况重构的频谱地图与基于射线跟踪方法获得理论结果吻合度较高。此外,针对典型场景的实测结果也进一步验证了本文方法的可行性。

Research of 3D Spectrum Mapping Driven by Propagation Model

The spectrum map is the basis of spectrum resource management, security governance and the war of electromagnetic spectrum. Aiming at the problem that traditional spectrum mapping is limited to two-dimensional space, this paper presents a three-dimensional spectrum data acquisition and mapping system architecture for the communication requirements of the integration of space, air, earth, and sea, and proposes a spectrum map reconstruction scheme driven by channel propagation model, which can obtain precise 3D spectrum map through inference and completion on sparse sampling data. The simulation results show that the spectrum maps reconstructed by this method are in good agreement with the theoretical results obtained by the ray-tracing technology. In addition, the experimental results under the campus scenario further verify the feasibility of proposed method.