时间频率学报
時間頻率學報
시간빈솔학보
JOURNAL OF TIME AND FREQUENCY
2009年
2期
129-133
,共5页
日本多功能运输星基增强系统%维特比译码%循环冗余校验
日本多功能運輸星基增彊繫統%維特比譯碼%循環冗餘校驗
일본다공능운수성기증강계통%유특비역마%순배용여교험
multi-functional satellite augmentation system%Viterbi decoding%CRC(cyclic redundancy check)
给出了日本MSAS(多功能卫星增强系统)基带信号处理各项关键技术的算法原理,并对2006年在成都高楼上采集的MSAS卫星信号数据通过软件进行了基带信号处理,验证了各关键技术算法原理的正确性.另外,提出对GPS接收机增加1个MSAS通道以便提高我国GPS卫星导航接收机的定位精度和进一步增强GPS卫星导航完好性监测.
給齣瞭日本MSAS(多功能衛星增彊繫統)基帶信號處理各項關鍵技術的算法原理,併對2006年在成都高樓上採集的MSAS衛星信號數據通過軟件進行瞭基帶信號處理,驗證瞭各關鍵技術算法原理的正確性.另外,提齣對GPS接收機增加1箇MSAS通道以便提高我國GPS衛星導航接收機的定位精度和進一步增彊GPS衛星導航完好性鑑測.
급출료일본MSAS(다공능위성증강계통)기대신호처리각항관건기술적산법원리,병대2006년재성도고루상채집적MSAS위성신호수거통과연건진행료기대신호처리,험증료각관건기술산법원리적정학성.령외,제출대GPS접수궤증가1개MSAS통도이편제고아국GPS위성도항접수궤적정위정도화진일보증강GPS위성도항완호성감측.
The key techniques of the baseband signal processing for the MSAS(multi-functional satellite augmentation system) is introduced. For the IF data of MSAS, which were sampled and stored at the top of a building in Chengdu in 2006, the baseband signal processing is realized through software, and the algorithm principle of the key techniques is verified. Besides, it is proposed to add a MSAS processing channel to the GPS receiver so as to improve the positioning precision and strengthen the GPS integrity monitoring.
