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학술지 A Comprehensive Evaluation of Possible RNSS Signals in the S-Band for the KPS
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한가희, 이상욱, 유문희, 원종훈
Sensors, v.22 no.6, pp.1-21
21ZH1100, 연결의 한계를 극복하는 초연결 입체통신 기술 연구, 박승근
Recently, the Korean government has announced a plan to develop a satellite-based navigation system called the Korean Positioning System (KPS). When designing a new Radio Navigation Satellite Service (RNSS) signal, the use of the S-band has emerged as an alternative to avoiding signal congestion in the L-bands, and South Korea is considering using the S-band with the L-bands. Therefore, this study proposed possible S-band signal candidates and evaluated their performance, such as the radio frequency (RF) compatibility, spectral efficiency, ranging performance, and receiver complexity. Several figures-of-merit (FoMs) were introduced for quantitative performance evaluation for each candidate. Each FoM was calculated using an analytical equation by considering the signal design parameters, such as the center frequency, modulation scheme, and chip rate. The results showed that the outstanding candidate signal was different depending on the signal performance of interest and the reception environments. Therefore, we discuss and summarize the signal performance analysis results considering the whole FoMs together. Under the assumptions given in this paper, the binary phase shift keying (BPSK)(1), sine-phased binary offset carrier (BOCs)(5,2), and BPSK signals were superior for the spectral efficiency, ranging performance, and receiver com-plexity, respectively.
KSP 제안 키워드
Binary Phase Shift Keying, Binary offset carrier, Center frequency, Comprehensive Evaluation, Modulation scheme, Performance analysis, Quantitative performance evaluation, Radio navigation, S-Band, Signal Design, South Korea
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