round-trip echoes

round-trip echoes

[′rau̇nd ¦trip ′ek·ōz]
(electromagnetism)
Multiple reflection echoes produced when a radar pulse is reflected from a target strongly enough so that the echo is reflected back to the target where it produces a second echo.
References in periodicals archive ?
One can see that the rate of the amplitude reduction increases for further round-trip echoes (i.e., larger n).