iSXblue/SXBlue II GNSS Series Technical Reference Manual
132
•
Bits 16-23: Phase Track Time in units of 1/10 second, range = 0 to 25.5 seconds (see next word)
•
Bits 24-31: Cycle Slip Counter (Increments by 1 every cycle slip with natural rollover after 255)
UlDoppler_FL
•
Bit 0: 1 if Valid Phase, 0 otherwise
•
Bit 1: 1 if Track Time > 25.5 seconds, 0 otherwise
•
Bits 2-3: Unused
•
Bits 4-31: Signed (two’s compliment) Doppler in units of m/sec x 4096. (i.e. LSB=1/4096), range = +/-
32768 m/sec. Computed as phase change over 1/10 sec.
6.1.8
Bin 97
This message has a BlockID of 97 and is 28 bytes excluding the header and epilogue. This message
contains statistics for processor utilization. The following table describes the details of this message in
order.
Table 6-9 Bin 97 Message
Group
Components
Type
Bytes
Value
CPUFactor
CPU utilization factor. Multiply
by 450e-06 to get percentage of
spare CPU that is available
Unsigned
long
4
Positive
MissedSubFrame
The total number of missed sub
frames in the navigation message
since power on
Unsigned
short
2
Positive
MaxSubFramePnd
Max sub frames queued
Unsigned
short
2
Positive
MissedAccum
The total number of missed code
accumulation measurements in
the channel tracking loop
Unsigned
short
2
Positive
MissedMeas
The total number of missed
pseudorange measurements
Unsigned
short
2
Positive
Spare 1
Spare 2
Spare 3
Not used at this time
Not used at this time
Not used at this time
All
Unsigned
long
4
4
4
Future use
Future use
Future use
Spare 4
Spare 5
Not used at this time
Not used at this time
All
Unsigned
short
2
2
Future use
Future use
6.1.9
Bin 98
This message has a BlockID of 98 and is 68 bytes excluding the header and epilogue. This message
contains data derived from the satellite almanacs. The following table describes the contents of this
message in order.
