NavCom Sapphire Rev.J - Manual (Page 279)

Sapphire Technical Reference Manual Rev. J
279
2.32 MEAS1B (Version 1; v1.0.0.4) (Binary)
SF-3050 Sapphire SF-3040
The MEAS1B output stream contains raw measurement data collected from the Sapphire
receiver’s tracking channels. The data is organized as a sequence of measurement blocks,
preceded by a short header, which contains the number of blocks in the record and key clock
information.
Table 129: MEAS1B
Data Item (1 + number of satellites * length of satellite clock) Data Type
Number of satellites U08
Satellite block…
2.32.1 Satellite Block
Table 130: Satellite Block
Data Item (5 bytes + 8 bytes * number of code types) Data Type Units Scale Bytes
PRN/Slot number U08 1 1
Number of code type U04 1
4
Coarse range U19 meter 100
Coarse Doppler S09
1
meter/sec 10
Signal block
1 The value must be two’s complement, with the sign bit occupying the MSB. Most MSB are
signed.
2.32.2 Signal Block
Table 131: Signal Block
Data Item (8 bytes) Data Type Units Scale Bytes
Frequency number U03 1
2
Code type U03 1
CN0 U06 dB-Hz 1
Cycle slip count U04 1
Delta range
1
S16 meter 0.01 2
Delta phase
2
S20 cycle 1/256
4
Delta_doppler
3
S12 meter/sec 0.005
See notes on next page.