HD-MAX Echo Sounder User Guide
55
Points translation
Generally speaking, points translation (TruckPoint) only has one known
point in the working area. The GPS differential mode adopted by users is
code differential (beacon or SBAS). Besides, in case of no other translation
parameters, coordinate correction is to be performed to ensure measurement
accuracy. It is similar to fixed difference correction of the previous ocean
sounding software. The only difference is that the plus-minus signs of input
value are opposite.
dx, dy and dh can be entered as translation parameter directly. Or you can
obtain accurate translation parameter through point translation parameter
calculation tools in [UtilityTools].
Figure 7-14 Points translation
Attention:
The points translation parameters of the software are
consistent with that of Hi-RTK hand book software.
However the fixed correction parameters of previous
software are different and the plus-minus signs of parameters
are opposite. For example, the fixed difference of previous
software can be input as dx, dy, dh. And for the software, the
translation parameters should be input as -dx, -dy and -dh.
