Within CARIS HIPS and SIPS, it is now possible to utilize the computed Total Propagated Uncertainty for many different sonars within the incorporated CUBE functionality.
The computation of TPU is based on the user's setup of the HIPS Vessel File with estimates of the accuracy of each individual sensor. In the TPU section of the HVF, each sensor accuracy value must be entered as 1-sigma. With the use of the TPU values in the Vessel File the user is now able to compute TPU so as to create a CUBE surface to aid in the processing of hydrographic data based on statisitical comparisons.
The sensor accuracy values provided in these pages were taken or derived from published manufacturer specifications between March 2004 and July 2004. The manufacturer reserves the right to change equipment specifications without notice.
The use of these published accuracy values should be re-evaluated periodically, as the user gains experience with the sensors and the TPU calculations.
Click here for Computation and common values of 1-sigma.