用于频谱感知的低功耗超宽带接收机的实验评估
Experimental Evaluation of a Low-Power Ultra-Wideband Receiver for Spectrum Sensing
- Intracom Defense（Intracom防务公司）
- University of Bordeaux（波尔多大学）
- CEA-Leti（法国原子能委员会电子与信息技术实验室）
- Université Grenoble-Alpes（格勒诺布尔-阿尔卑斯大学）
机构由 AI 辅助整理，请以论文原文为准。
中文总结 AI 辅助
本文实验评估了一种基于沃尔什序列的低功耗超宽带接收机原型，在多种信号与干扰场景下测量其频谱重建与性能，证明其适用于密集频谱下的低功耗宽带频谱感知。
中文摘要 AI 辅助
基于沃尔什序列的接收机架构为在宽带宽内接收和重建多个同时存在的射频信号提供了一种替代方法。虽然先前的工作侧重于沃尔什域处理的架构和理论操作，但迄今为止，在现实条件下硬件操作的实验性结果报道有限。本文介绍了一种基于沃尔什序列的接收机原型的实验评估。在各种信号布置、干扰和接收机配置场景下进行了测量活动。使用重建频谱、沃尔什通道功率谱密度（PSD）和误差矢量幅度（EVM）测量来研究沃尔什域信号表示、干扰效应和接收机性能。最后，涉及多达十个同时活动信号的密集频谱实验证明了该架构在低功耗宽带频谱感知应用中的潜力。
英文摘要
Walsh-sequence-based receiver architectures offer an alternative approach for the reception and reconstruction of multiple simultaneous RF signals over wide bandwidths. While previous works have focused on the architecture and theoretical operation of Walsh-domain processing, limited experimental results have been reported so far on hardware operation under realistic conditions. This paper presents the experimental evaluation of a Walsh-sequence-based receiver prototype. A measurement campaign was conducted under various signal placement, interference, and receiver configuration scenarios. Reconstructed spectra, Walsh-lane power spectral densities (PSDs), and Error Vector Magnitude (EVM) measurements were used to investigate Walsh-domain signal representation, interference effects, and receiver performance. Finally, dense- spectrum experiments involving up to ten simultaneously active signals demonstrate the potential of the architecture for low power wideband spectrum sensing applications.
