【摘要】：窄巷波長(zhǎng)相對(duì)較短,受觀測(cè)數(shù)據(jù)質(zhì)量和未模型化誤差的影響較大,導(dǎo)致參考站計(jì)算的窄巷FCB估值的互差較大,窄巷FCB穩(wěn)定性較差。針對(duì)窄巷FCB估值出現(xiàn)較大偏差的參考站,本文提出了基于抗差初值的窄巷FCB抗差估計(jì)方法,該方法取當(dāng)前歷元所有參考站窄巷FCB估值的中位數(shù)作為抗差初值,采用IGGⅢ方案降低了有偏差的窄巷FCB估值的權(quán)比。采用IGS全球跟蹤站網(wǎng)的數(shù)據(jù)進(jìn)行驗(yàn)證,改進(jìn)的方法提高了窄巷FCB的精度和穩(wěn)定性,采用每天估計(jì)的一組衛(wèi)星端的窄巷FCB即可滿足窄巷模糊度固定的精度要求。同時(shí),采用本文改進(jìn)方法估計(jì)的窄巷FCB,可以提高用戶端仿動(dòng)態(tài)單天解的窄巷模糊度固定成功率和定位精度。
[Abstract]:The narrow lane wavelength is relatively short, which is greatly influenced by the observation data quality and the unmodeled error, which results in the large mutual difference of the narrow lane FCB estimation calculated by the reference station, and the poor stability of the narrow lane FCB. For the reference station with large deviation in narrow lane FCB estimation, this paper presents a narrow lane FCB robust estimation method based on the initial robust initial value, which takes the median of narrow lane FCB estimation of all reference stations in current epoch as the initial robust initial value. The IGG 鈪，

本文編號(hào)：2465166