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Software-defined radio (SDR) platforms represent a compelling solution for low-cost, flexible, dual-polarized radar systems. However, the phase coherency requirements of a dual-polarized radar system between the transmit ports and between the receive ports as well as between transmission and reception, are difficult to attain in popular SDRs. In this paper, we provide high-level overviews of SDR radar...
This work details the design and construction of a dual-polarization, continuous-wave, monostatic, software-defined radar system. The platform is built around the Ettus Research USRP-B210, which provides 30MHz of signal bandwidth at carrier frequencies ranging between 70MHz and 6GHz. The reconfigurable nature of the USRP is exploited to realize a radar with programmable waveforms. Radar measurements...
Dual-polarized radar systems rely on coherence between the transmit ports, the receive ports, as well as between transmission and reception. These requirements, however, are not typically met and sustained by low-cost software defined radio (SDR) systems. Phase offsets, in particular, can be introduced by path delays between ports and/or by phase drifts/offsets due to local oscillators. In this work...
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