In this case, a leading possibility is that the signal originates from an unusual modulation between a GPS satellite and an unidentified Earth-based source.
在这种情况下,最主要的可能性是这道信号来源于一个一颗GPS卫星和未确认的地球发射源之间的不寻常的调制信号。
That way, the device responds quicker than it would if it had to download the data for triangulation each time from Apple, or wait a minute or so for the faint signal from a passing GPS satellite.
通过这种三角定位的方式,如果设备必须要从苹果上下载东西的时候,它每次的响应速度会比较快,否则的话,需要等待一分钟左右,以便接收经过的GPS卫星发出的微弱信号(进行定位)。
The NORMARC 8005 SCAT-I ground station receives and validates GPS signals and then transmits the calculated signal corrections and flight path data via a VHF data link.
NORMARC 8005 SCAT - 1地面站接收和验证GPS信号,然后通过VHF数据链发送计算后的信号校正和飞行路径数据。
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