Fields in Signature Deployment Matlab Output
Hello
I was wondering if someone could shed some light on exactly which field is which in the Matlab output from Signature Deployment Software. Much of it is self explanatory, but in particular I am interested in vertical velocity (when Coordinate Transform is checked) as there are two  BurstHR_VelUp1 and BurstHR_VelUp2. I'm guessing one is the vertical velocity straight from the 5th beam, and the other is vertical velocity from the transform of the other 4 beams (similarly for BurstHR_BVelZ1 and BurstHR_VelZ2, which I assume is in XYZ coordinates). It's not super important, but when I report the data, I want to make sure I have the fields named correctly.
Thanks
Kurt

Official comment
Hi Kurt,
Any time you see Up1 and Up2 (or Z1 and Z2), these are the two estimates of the vertical velocity from the slanted beams. Because most of our Signature instruments have 4 beams, you end up with each pair of opposing beams measuring one horizontal component and one vertical component  Beams 1 and 3 will measure X and Z1, Beams 2 and 4 will measure Y and Z2.
We provide both vertical velocity measurements as another quality control parameter. They should be very similar since both pairs of beams are measuring the same vertical velocity. If they are quite different, then it may indicate that there is an issue with the data. If you need to use one vertical velocity measurement, we recommend averaging the two estimates.
Best regards,
Ellie
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