利用多馈源幅相控制线性阵列的抛物柱面紧缩场模拟紧密间隔空间感知目标
Emulation of Closely Spaced Spatial Sensing Targets Using a Parabolic Cylindrical Compact Range with a Multi-Feed Amplitude-Phase Controlled Linear Array
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University（东南大学信息科学与工程学院国家移动通信实验室）
- China Automotive Technology and Research Center Co., Ltd（中国汽车技术研究中心有限公司）
- Beihang University（北京航空航天大学）
- Purple Mountain Laboratories（紫金山实验室）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
针对ISAC基站OTA测试需求，提出集成RTS、APM网络与多馈源线性阵列及SPCCR的系统，可在±10°方位角内高精度模拟紧密间隔多目标，经仿真与实测验证。
AI中文摘要：
集成感知与通信（ISAC）基站正成为6G网络的关键基础设施，需要先进的空口（OTA）测试方法，能够在远场（FF）条件下模拟动态、多目标场景。然而，现有测试方案常受限于角度灵活性不足、带宽不够以及成本过高。为解决这些挑战，本文提出一种OTA测试系统，该系统集成了雷达目标模拟器（RTS）、多端口幅度和相位调制（APM）网络以及带有单抛物柱面紧缩场（SPCCR）的多馈源线性阵列。所提系统能够模拟具有不同入射方位角的紧密间隔空间目标。该设置满足ISAC基站测试的基本条件，包括远场特性、宽带和多频段兼容性，以及感知多个动态紧密间隔目标的能力。通过FEKO仿真和实测验证了所提方法的可行性。实验结果表明，该系统在±10°方位角范围内成功模拟多个紧密间隔目标，具有高模拟精度，同时保持优异的静区（QZ）性能。
英文摘要：
Integrated sensing and communication (ISAC) base stations (BSs) are emerging as critical infrastructure for 6G networks, requiring advanced over-the-air (OTA) testing methodologies that can emulate dynamic, multi-target scenarios under far field (FF) conditions. However, existing testing solutions often suffer from limited angular flexibility, insufficient bandwidth, and prohibitive costs. {To address these challenges, this paper proposes an OTA testing system that integrates a radar target simulator (RTS), a multi-port amplitude and phase modulation (APM) network, and a multi-feed linear array with a single parabolic cylindrical compact range (SPCCR).} The proposed system is capable of emulating closely spaced spatial targets with varying incident azimuth angles. This setup meets the essential conditions for ISAC BS testing, including FF characteristics, wideband and multi-band compatibility, and the capability for sensing multiple dynamic closed-spaced targets. The feasibility of the proposed method is validated through both FEKO simulation and measurement. Experimental results demonstrate that the system successfully emulates multiple closely spaced targets within an azimuth range of $\pm 10^\circ$ with high emulation accuracy while maintaining excellent quiet zone (QZ) performance.
