target echo

echo location/echo ranging

E – ECHO

echo (returned signal)

echo depth finder

echo sounder

echo sounding

bottom echo

bottom echo signal

coherent echo

coherent echo modulation and detection

Doppler echo indicator

echo area

echo frequency

echo intensity

mirror-reflection echo

precipitation echo

second-trip echo

echo

Echo (phonetic alphabet)

skin echo

target scattering crossover / target scattering cross-section / electronic target profile

high pay-off target / high-payoff target (HPT)

priority target (high priority target)

target, to obtain a target

complex target / complicated target

target category / target cat

low-RCS target / low-radar-cross-section target

factor OT/BT (observer-target/battery-target factor)

observer-target / battery-target factor (factor OT/BT)

target indication from an auxiliary target

acoustic target-sensor

aerial target