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    국내학술지 제목 게시판 내용
    제목(국문) GNSS 수신기를 위한 낮은 복잡도를 갖는 새로운 반송파 대 잡음 전력비 추정기법
    제목(영문) A Novel Canier-to-noise Power Ratio Estimation Scheme with Low Complexity for GNSS Receivers
    저자 유승수 (S. S. Yoo ,건국대학교 ) ▷공저자네트워크등록하기
    백지현 (B.J.H ,LIG Nex1 ) ▷공저자네트워크등록하기
    염동진 (Y.D.J ,Agency for Defense Development ) ▷공저자네트워크등록하기
    지규인 (K.I.Ji ,the Department of Electronic Engineering, Konkuk University ) ▷공저자네트워크등록하기
    김선용 (S. Y. Kim ,건국대학교 ) ▷공저자 네트워크 보기
    초록
    초록(영문)

    The carrier-to-noise power ratio is a key parameter for determining the reliability of PVT (Position, Velocity, and Time) solutions which are obtained by a GNSS (Global Navigation Satellite System) receiver. It is also used for locking a tracking loop, deciding the re-acquisition process,and processing advanced navigation in the receiver subsystem. The representative carrier-to-noise power ratio estimation schemes are the narrowband-wideband power ratio method (NW), the MM (Moment Method), and Beaulieu’s method (BL). The NW scheme is the most classical one for commercial GNSS receivers. It is often used as an authoritative benchmark for assessing carrier-to-noise power estimation schemes. The MM scheme is the least biased solution among them, and the BL scheme is a simpler scheme than the MM scheme. This paper focuses on the less biased estimation with low complexity when the residual phase noise remains, then proposes a novel carrier-to-noise power ratio estimation scheme with low complexity for GNSS receivers. The asymptotic bias of the proposed scheme is derived and compared with others,and the simulation results demonstrate that the complexity of the proposed scheme is lowest among them,while the estimation performance of the proposed scheme is simile to those of the BL and MM schemes in normal and high gained reception environments.

    keyword GNSS, cmier-to-noise power ratio estimator, complexity, residual phase error, asymptotic bias
    저널명 제어로봇시스템학회논문지 ▷관련저널보기
    VOL 20
    PAGE 767-773
    발표년도 2014
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