| http://www.w3.org/ns/prov#value | - That is, when the Doppler velocity of the target is measured by a transmission pulse signal having a relatively short interval between transmission pulses, namely, pulse repetition cycle, a multiple-trip echo such as a second-trip echo, third-trip echo or fourth-trip echo reflected from an object other than the target is readily included into a received pulse signal reflected from the target and t
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