4 SBF Reference
MeasEpochChannelType1
sub-block definition:
Parameter
Type Units
Do-Not-Use
Description
RxChannel
u1
Receiver channel on which this satellite is currently tracked
(see 4.1.11).
Type
u1
Bit field indicating the signal type and antenna ID:
Bits 0-4:
SigIdxLo
: if not 31, this is the signal number (see
4.1.10), otherwise the signal number can be found in
the
ObsInfo
field below.
Bits 5-7: Antenna ID: 0 for main, 1 for
Aux1
and 2 for
Aux2
u1
Satellite ID, see 4.1.9
Misc
u1
Bit field containing the MSB of the pseudorange.
4294967.296
m
0
(1)
Bits 0-3:
CodeMSB
: MSB of the pseudorange (this is an un-
signed value).
Bits 4-7: Reserved
CodeLSB
u4
0.001
m
0
(1)
LSB of the pseudorange. The pseudorange expressed in
meters is computed as follows:
PR
type1
[m] = (
CodeMSB
*429
CodeLSB
)*0.001
where
CodeMSB
is part of the
Misc
field.
Doppler
i4
0.0001
Hz
−
2147483648
Carrier Doppler (positive for approaching satellites).
To compute the Doppler in Hz, use:
D
type1
[Hz] =
Doppler
*0.0001
CarrierLSB
u2
0.001
cycles
0
(2)
LSB of the carrier phase relative to the pseudorange
CarrierMSB
i1
65.536
cycles
−
128
(2)
MSB of the carrier phase relative to the pseudorange. The full
carrier phase can be computed by:
L[cycles] = PR
type1
[m]/
λ
+(
CarrierMSB
*65536+
CarrierLSB
)*0.001
where
λ
is the carrier wavelength corresponding to the
frequency of the signal type in the
Type
field above:
λ
=299792458/f
L
m, with f
L
the carrier frequency as listed in
section 4.1.10.
CN0
u1
0.25
dB-Hz
255
The C/N0 in dB-Hz is computed as follows, depending on the
signal type in the
Type
field:
C/N
0
[dB-Hz] =
CN0
*0.25 if the signal number is 1 or 2
C/N
0
[dB-Hz] =
CN0
*0.25+10 otherwise
Users requiring a higher C/N0 resolution can use the
SBF block. The
Misc
field of that block allows to
extend the resolution to 0.03125dB-Hz.
LockTime
u2
1
s
65535
Duration of continuous carrier phase. The lock-time is reset
at the initial lock of the phase-locked-loop, and whenever a
loss of lock condition occurs.
If the lock-time is longer than 65534s, it is clipped to 65534s.
If the carrier phase measurement is not available, this
field is set to its Do-Not-Use value.
304
Summary of Contents for PolaRx5TR
Page 1: ...PolaRx5TR Reference Guide Applicable to version 5 5 0 of the Firmware ...
Page 73: ...3 Command Line Reference Chapter 3 Command Line Reference 73 ...
Page 130: ...3 Command Line Reference COM1 gim CR R gim IonosphereModel off COM1 130 ...
Page 237: ...3 Command Line Reference COM1 237 ...
Page 279: ...3 Command Line Reference COM1 279 ...
Page 294: ...4 SBF Reference Chapter 4 SBF Reference 294 ...