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首页> 外文期刊>Microwaves, Antennas & Propagation, IET >Improving dynamic range of software-defined radio receivers for multi-carrier wireless systems
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Improving dynamic range of software-defined radio receivers for multi-carrier wireless systems

机译：改善多载波无线系统的软件定义无线电接收机的动态范围

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摘要

This study presents an architecture to increase the instantaneous dynamic range of multi-carrier wideband digital receivers. The proposed topology includes a directional coupler followed by two parallel analog-to-digital converters and digital signal processing to reconstruct the signal. It will be shown that the proposed technique is able to increase the dynamic range of software-defined radio (SDR) receivers for multiband signals presenting certain statistical patterns. The concept is validated by simulations and measurements of a real SDR front-end receiver for multiband communications scenario, which will demonstrate improvements in the order of 6 dB when compared to existing alternatives.
机译：这项研究提出了一种可增加多载波宽带数字接收器瞬时动态范围的架构。拟议的拓扑包括定向耦合器，其后是两个并行的模数转换器和数字信号处理以重构信号。将显示出，所提出的技术能够为呈现某些统计模式的多频带信号增加软件定义无线电（SDR）接收机的动态范围。该概念已通过针对多频带通信场景的实际SDR前端接收器的仿真和测量得到了验证，与现有替代方案相比，该演示将显示出约6 dB的改进。

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