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首页> 外文会议>IEEE International Geoscience and Remote Sensing Symposium >SOFTWARE DEFINED RADIO FOR STEPPED-FREQUENCY, GROUND-PENETRATING RADAR
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SOFTWARE DEFINED RADIO FOR STEPPED-FREQUENCY, GROUND-PENETRATING RADAR

机译：软件定义了阶梯式频率的无线电，地面穿透雷达

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摘要

Software defined radio (SDR) is a rapidly developing technology that implements signal processing components partially or completely in software. In this paper, SDR's potential as a platform for ground-penetrating radar (GPR) is explored. The stepped-frequency radar method is implemented using off-the-shelf SDR hardware and open-source software. SDR is typically designed for communications applications, so special consideration is necessary for remote sensing. Precisely timed commands achieve RF phase coherence as well as digital sample synchronization. A multi-tone digital signal takes advantage of instantaneous bandwidth, and a sequential tuning routine expands effective bandwidth to cover the 500-5000 MHz band. Initial design challenges are weighed against potential advantages of design flexibility and hardware versatility.
机译：软件定义的无线电（SDR）是一种快速开发的技术，可在软件中部分或完全实现信号处理组件。本文探讨了SDR作为地面穿透雷达（GPR）平台的潜力。使用现成的SDR硬件和开源软件实现阶梯式频率雷达方法。 SDR通常是为通信应用而设计的，因此遥感需要特殊考虑。精确定时命令实现RF相位相干性以及数字样本同步。多色调数字信号利用瞬时带宽，并且顺序调整例程扩展了有效带宽以覆盖500-5000 MHz频带。初始设计挑战是针对设计灵活性和硬件多功能性的潜在优势。

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