Data Sheet

2/7/2019 Home · bluerobotics/ping-viewer Wiki · GitHub
https://github.com/bluerobotics/ping-viewer/wiki#installing-and-running-the-application 4/8
See the Wikipedia articles on Echo sounding and Fishfinders for more information on how
the device operates.
Target locking
The Ping device processes the data and attempts to lock on to the most likely target in view
of the device. The algorithm for determining the target considers return strength (the
strongest return is likely the target) and past measurements (ie. a low pass filter). The Ping
device algorithm also produces a confidence measurement corresponding to the probability
that it has correctly identified the target. In noisy environments presenting a lower signal-to-
noise ratio, the confidence of the target lock may be reduced.
Distance and Profile Measurements
The device outputs the distance to the most likely target with the associated confidence. The
device additionally outputs Profile samples, which consist of 200 signal strength
measurements at regular distance intervals across the current scan range. These Profile
samples provide a more detailed view of what might be in front of the Ping device. With the
Profile data you can see fish in the water, determine if the device is picking up multiple
reflections or interference from other acoustic devices, and possibly differentiate between eg.
bare sand and plant life.
Main Application Interface
The Ping Viewer window consists of four important components:
1. Distance Readout
2. Distance Axis
3. Return Plot