USRP 기반 다중 안테나 GPS L1 C/A RF 신호생성기 설계
Design of a USRP-based Multi-Antenna GPS L1 C/A RF Signal Generator
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초록
In this study, we designed a USRP-based multi-antenna GPS L1 C/A RF signal generator and verified its performance using commercial receivers. The designed RF signal generator consists of a software-based signal generation module that generates multiple GPS L1 C/A IF signals, and an RF signal transmission module that up-converts the generated IF signals to RF signals for transmission. The multi-GPS signals are generated by reflecting time delays, according to the arrangement and structure of the antennas, in the code and carrier, and each signal is transmitted through its respective RF front-end. The RF signals were verified using a commercial U-blox receiver, and the operation and performance of the multi-antenna signals were confirmed using an attitude determination system configured with two U-blox receivers. The designed signal generator can be used not only for precise navigation and attitude determination but also for the development of various array signal processing systems such as A/DOA, beamforming, and nulling.
Abstract
In this study, we designed a USRP-based multi-antenna GPS L1 C/A RF signal generator and verified its performance using commercial receivers. The designed RF signal generator consists of a software-based signal generation module that generates multiple GPS L1 C/A IF signals, and an RF signal transmission module that up-converts the generated IF signals to RF signals for transmission. The multi-GPS signals are generated by reflecting time delays, according to the arrangement and structure of the antennas, in the code and carrier, and each signal is transmitted through its respective RF front-end. The RF signals were verified using a commercial U-blox receiver, and the operation and performance of the multi-antenna signals were confirmed using an attitude determination system configured with two U-blox receivers. The designed signal generator can be used not only for precise navigation and attitude determination but also for the development of various array signal processing systems such as A/DOA, beamforming, and nulling.
참고문헌 (28)
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