Q. How can the Kongsberg multibeam quality be mapped to EIVA quality?

A. The input is the Kongsberg QualityFactor and Detection Info.

The QualityFactor is a scaled standard deviation or the range detection divided by the detected range.
Valid values are from 0 to 254 (lower values implies higher quality)

The Detection Info tells
• whether the detection is valid or not
• whether the detection is Amplitude or Phase based
• the calculation method for invalid beams

EIVA Quality

0
Invalid detection, Range = 0
1
Invalid detection, No detection data available
2
Invalid detection, Rejected candidate
3
Invalid detection, Estimated
4
Invalid detection, Interpolated or extrapolated from neighbours
5
With Kongsbergs words ‘Normal detection, but Invalid’
6
Valid Phase detection with highest scaled standard deviation [205 – 254]
7
Valid Amplitude detection with highest scaled standard deviation [205 – 254]
8
Valid Phase detection with scaled standard deviation [154 – 204]
9
Valid Amplitude detection with scaled standard deviation [154 – 204]
10
Valid Phase detection with scaled standard deviation [103 – 153]
11
Valid Amplitude detection with scaled standard deviation [103 – 153]
12
Valid Phase detection with scaled standard deviation [52 – 102]
13
Valid Amplitude detection with scaled standard deviation [52 – 104]
14
Valid Phase detection with scaled standard deviation [0 – 51]
15
Valid Amplitude detection with scaled standard deviation [0 – 51]