CAJ | 학술논문

讨论两种原子钟时间预报模型:普通多项式模型和切比雪夫多项式模型.利用IGS提供的精密钟差数据,分别对3种不同时期发射的GPS卫星的卫星钟预报1天的卫星钟差,并对其钟差预报效果进行分析和比较,结果表明,利用切比雪夫多项式模型进行时间预报,其与普通多项式模型的预报效果相差很小,因此可以用切比雪夫多项式模型来替代普通多项式模型进行卫星钟差的预报.
토론량충원자종시간예보모형:보통다항식모형화절비설부다항식모형.이용IGS제공적정밀종차수거,분별대3충불동시기발사적GPS위성적위성종예보1천적위성종차,병대기종차예보효과진행분석화비교,결과표명,이용절비설부다항식모형진행시간예보,기여보통다항식모형적예보효과상차흔소,인차가이용절비설부다항식모형래체대보통다항식모형진행위성종차적예보.
Two basic models, general polynomial model and Tchebytchev polynomials model which are used to predict the time deviation of atomic clock, are discussed. One day's clock bias of three different GPS satellite's clocks, which are launched in different period, are predicted by using of the precise clock bias data supplied by IGS, and the prediction results of clock bias are analyzed and compared, and the results show that when using the Interpolation model with Tchebytchev polynomials to predict the time deviation of atomic clock, the prediction results' differences are very small compared with the results of general polynomial model. Therefore, the general polynomial model can be instead of by interpolation model with Tchebytchev polynomials to predict the time deviation of atomic clock.