Ramona was the second generation Czechoslovak electronic support measures (ESM) system that uses measurements of time difference of arrival (TDOA) of pulses at three or four sites to accurately detect and track airborne emitters by multilateration. == History == Ramona's designation was KRTP-81 and it carried the NATO reporting name of Soft Ball.
Ramona was the second generation Czechoslovak electronic support measures (ESM) system that uses measurements of time difference of arrival (TDOA) of pulses at three or four sites to accurately detect and track airborne emitters by multilateration. == History == Ramona's designation was KRTP-81 and it carried the NATO reporting name of Soft Ball.
Source: Wikipedia "Ramona passive sensor" · CC BY-SA 4.0
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