About pings

A ping in Echoview is the representation of the return signal (echo trace) measured after the transmission of a single acoustic pulse. An echogram consists of one or more pings.

Echoview can represent two distinct types of ping:

single beam pings, in which each ping represents the echo trace measured after a single pulse in a single beam. These appear on echograms as a vertical column of samples, each sample colored according to measured signal strength. The samples at the top of the echogram are nearest the transducer and the samples at the bottom furthest from the transducer. Many pings can be displayed side by side forming a two dimensional image - the echogram. See About echograms.
multibeam pings, in which each ping represents the echo trace measured after a single pulse in multiple beams. These are represented by a two dimensional sector plot, with each beam radiating from the transducer (at the center of the sector). See About multibeam echograms.

All pings have a position (in latitude and longitude) and a time. The time is typically read from the data file along with the ping data. The position of a ping depends is determined from the platform configuration. See About ping position for further details.

About pings

See also