Aanderaa DCPS 5400, Руководство по эксплуатации

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July 2019 – TD 304 OPERATING MANUAL – Doppler Current Profiler Sensor Page 121
5.7.4
Cell States
A Cell State 1 and Cell State 2 is output for each cell giving QC data for each cell. Each bit has a status as shown in
Table 5-6 and Table 5-7 .
To analyse this value you need to convert the digital number to a binary number end then read the individual bit that is
set. For example if Cell State 1 is 6384 like in Figure 5-9 then the corresponding bit pattern is 110001111000 which
means that bit 4,5,6,7,11 and bit 12 is set. If we then check these bits in Table 5-6 we see that bit 4 and 5 indicate that
the Cell has weak signal, strength below weak strength limit 3, and default value -48dB. Bit 6 and 7 indicates that Cell
has High standard deviation, above SP standard deviation 3 limits. Bit 11 indicates that Cell has High vertical current,
above high vertical limit 2, default 20 cm/s and bit 12 indicates that Cell is setup to measure inside blanking zone.
Table 5-6: Cell State1 (For SW version 8.3.6. and newer. For older version see previous version.)
Cell State1 bits Meaning
Bit no Bit pattern (x don’t care)
0
Binary: xxxxxxxxxxxxxxx1
Hexadecimal: xxx1
High broadband cross correlation beam1, above cross correlation
high limit
1)
1
Binary: xxxxxxxxxxxxxx1x
Hexadecimal: xxx2
High broadband cross correlation beam2, above cross correlation
high limit
1)
2
Binary: xxxxxxxxxxxxx1xx
Hexadecimal: xxx4
High broadband cross correlation beam3, above cross correlation
high limit
1)
3
Binary: xxxxxxxxxxxx1xxx
Hexadecimal: xxx8
High broadband cross correlation beam4, above cross correlation
high limit
1)
4
Binary: xxxxxxxxxxx1xxxx
Hexadecimal: xx1x
Cell has Weak signal, strength below weak strength limit 1, default
value -40dB
5
Binary: xxxxxxxxxx1xxxxx
Hexadecimal: xx2x
Cell has weak signal, strength below weak strength limit 2, default
value -44dB
4 and 5 Binary: xxxxxxxxxx11xxxx
Hexadecimal: xx3x
Cell has weak signal, strength below weak strength limit 3, default
value -48dB
6
Binary: xxxxxxxxx1xxxxxx
Hexadecimal: xx4x
Cell has High standard deviation, above SP standard deviation 1
limit
2)
7
Binary: xxxxxxxx1xxxxxxx
Hexadecimal: xx8x
Cell has High standard deviation, above SP standard deviation 2
limit
2)
6 and 7 Binary: xxxxxxxx11xxxxxx
Hexadecimal: xxCx
Cell has High standard deviation, above SP standard deviation 3
limit
2)
8
Binary: xxxxxxx1xxxxxxxx
Hexadecimal: x1xx
Cell has High cross difference, above cross difference limit 1,
1,
default 10 cm/s
9
Binary: xxxxxx1xxxxxxxxx
Hexadecimal: x2xx
Cell has High cross difference, above cross difference limit 2,
default 25 cm/s
8 and 9 Binary: xxxxxx11xxxxxxxx
Hexadecimal: x3xx
Cell has High cross difference, above cross difference limit 3,
default 40 cm/s
10
Binary: xxxxx1xxxxxxxxxx
Hexadecimal: x4xx
Cell has High vertical current, above high vertical limit ,1 default 10
cm/s
11
Binary: xxxx1xxxxxxxxxxx
Hexadecimal: x8xx
Cell has High vertical current, above high vertical limit 2, default 20
cm/s