Novatel OM-20000041 用户手册
D
Logs summary
MiLLennium GPSCard Software Version 4.50 Command Descriptions Manual Rev 1
201
Table D-7
Channel Tracking Status
Table D-7 is referenced by the ETSA/B, FRMA/B, RGEA/B/D and WRCA/B logs.
Table D-7, Bits 0 - 3: Channel Tracking State
Table D-7, Bits 12-14: Correlator Spacing
State
Description
State
Description
0
L1 Idle
6
L1 Steering
1
L1 Sky search
7
L1 Frequency-lock loop
2
L1 Wide frequency band pull-in
8
L2 Idle
3
L1 Narrow frequency band pull-in
9
L2 P-code alignment
4
L1 Phase-lock loop
10
L2 Search
5
L1 Re-acquisition
11
L2 Phase-lock loop
Higher numbers are reserved for future use
State
Description
0
Unknown: this only appears in versions of software previous to x.45, which didn’t use this field
1
Standard correlator: spacing = 1 chip
2
Narrow Correlator tracking technology: spacing < 1 chip
Higher numbers are reserved for future use
N 7
N 6
N 5
N 4
N 3
N 2
N 1
N 0
<- <- Nibble Number
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit
Description
Range Values
Hex.
lsb = 0
1
1 Tracking state
0 - 11 See below
2
2
4
3
8
4
10
5
0 - n (0 = first, n =
last)
last)
20
6 Channel number
(n depends on GPSCard) 40
7
80
8
100
9 Phase lock flag
1 = Lock, 0 = Not locked
200
10 Parity known flag
1 = Known, 0 = Not
known
known
400
11 Code locked flag
1 = Lock, 0 = Not locked
800
12
1000
13 Correlator spacing
0 - 7 See below
2000
14
4000
15
0=GPS 3= Pseudolite
GPS
GPS
8000
16 Satellite system
1=GLONASS 4-7
Reserved
Reserved
10000
17
2=WAAS
20000
18 Reserved
40000
19 Grouping
1 = Grouped, 0 = Not
grouped
grouped
80000
20 Frequency
1 = L2, 0 = L1
100000
21 Code type
0 = C/A 2 = P-
codeless
codeless
200000
22
1 = P 3 = Reserved 400000
23 Forward error correction
1 = FEC enabled, 0 = no
FEC
FEC
800000
24
: Reserved
29
30 External range
1 = Ext. range, 0 = Int.
range
range
31 Channel assignment
1 = Forced, 0 =
Automatic
Automatic