GPS标准历书Yuma,Rinex,TLE,SEM是什么意思?
它們都是GPS的標(biāo)準(zhǔn)歷書。可以導(dǎo)入GNSS仿真軟件例如,Spirent的 SimGen軟件內(nèi)導(dǎo)入。
是星歷還是歷書? —我現(xiàn)在還不知道,歡迎留言告訴我。
信息比較簡單,包含1-32顆衛(wèi)星SV的資料,所以是歷書。
 使得接收機(jī)搜尋衛(wèi)星有的放矢,而不是漫天搜星。
 二來找到任意星的概略多普勒頻移,輔助頻域搜索。
下載打開一個就知道是什么了,
 ******** Week 49 almanac for PRN-01 ********
 ID: 01
 Health: 000
 Eccentricity: 軌道偏心率 0.9519100189E-002
 Time of Applicability(s): 歷書基準(zhǔn)時間147456.0000
 Orbital Inclination(rad): 軌道傾角0.9790716268
 Rate of Right Ascen(r/s): 升交點赤經(jīng)變化率-0.7794610391E-008
 SQRT(A) (m 1/2): 5153.588379
 Right Ascen at Week(rad): -0.1956019874E+001
 Argument of Perigee(rad): 0.756044677
 Mean Anom(rad): -0.2437549026E+001
 Af0(s): -0.3280639648E-003
 Af1(s/s): -0.1091393642E-010
 week: 49
******** Week 49 almanac for PRN-02 ********
 ID: 02
 Health: 000
 Eccentricity: 0.1980066299E-001
 Time of Applicability(s): 147456.0000
 Orbital Inclination(rad): 0.9581291938
 Rate of Right Ascen(r/s): -0.7977475151E-008
 SQRT(A) (m 1/2): 5153.606934
 Right Ascen at Week(rad): -0.2030848250E+001
 Argument of Perigee(rad): -1.646827620
 Mean Anom(rad): -0.2178932824E+001
 Af0(s): -0.4234313965E-003
 Af1(s/s): -0.7275957614E-011
 week: 49
******** Week 49 almanac for PRN-03 ********
 ID: 03
 Health: 000
 Eccentricity: 0.2655506134E-002
 Time of Applicability(s): 147456.0000
 Orbital Inclination(rad): 0.9650560758
 Rate of Right Ascen(r/s): -0.7783181344E-008
 SQRT(A) (m 1/2): 5153.544922
 Right Ascen at Week(rad): -0.9146618858E+000
 Argument of Perigee(rad): 0.705710183
 Mean Anom(rad): 0.2755420855E+001
 Af0(s): -0.1192092896E-003
 Af1(s/s): -0.1091393642E-010
 week: 49
Yuma在美國的網(wǎng)站可以下載:http://celestrak.com/GPS/almanac/Yuma/
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