Teledyne WORKHORSE, Operation Manual, Page: 227 / 258

WorkHorse H-ADCP Operation Manual May 2015
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Page 215
Correlation Magnitude, Echo Intensity, Percent-
Good, and Status Data Format
BIT POSITIONS
BYTE 7/S 6 5 4 3 2 1 0
1 ID CODE LSB
2 MSB
3 DEPTH CELL #1, FIELD #1
4 DEPTH CELL #1, FIELD #2
5 DEPTH CELL #1, FIELD #3
6 RESERVED
7 DEPTH CELL #2, FIELD #1
8 DEPTH CELL #2, FIELD #2
9 DEPTH CELL #2, FIELD #3
10 RESERVED
↓
(SEQUENCE CONTINUES FOR UP TO 128 BINS)
↓
511 DEPTH CELL #128, FIELD #1
512 DEPTH CELL #128, FIELD #2
513 DEPTH CELL #128, FIELD #3
514 RESERVED
See Table 39 through Table 41 for a description of the fields.
Figure 51. Correlation Magnitude, Echo Intensity, Percent-Good, and Status Data Format
The number of depth cells is set by the WN command .
Correlation magnitude data give the magnitude of the normalized echo autocorrelation at the lag used for
estimating the Doppler phase change. The H-ADCP represents this magnitude by a linear scale between 0
and 255, where 255 is perfect correlation (i.e., a solid target). A value of zero indicates bad correlation val-
ues.
Table 39: Correlation Magnitude Data Format
Hex Digit Binary Byte Field Description
1-4 1,2 ID Code Stores the correlation magnitude data identification word (00 02h).
5,6 3 Depth Cell 1, Field 1 Stores correlation magnitude data for depth cell #1, beam #1. See above.
7,8 4 Depth Cell 1, Field 2 Stores correlation magnitude data for depth cell #1, beam #2. See above.
9,10 5 Depth Cell 1, Field 3 Stores correlation magnitude data for depth cell #1, beam #3. See above.
11,12 6 RESERVED RESERVED
13 – 1028 7 – 514 Cells 2 – 128 (if used) These fields store correlation magnitude data for depth cells 2 through 128 (depend-
ing on the WN-command) for all three beams. These fields follow the same format as
listed above for depth cell 1.