Articles | Volume 22, issue 10
03 Nov 2004
 | 03 Nov 2004

Mean velocities measured with the double pulse technique

E. Nielsen

Abstract. It was recently observed that double-pulse measurements of the mean velocities of a wide asymmetric spectrum are a function of the time lag between the pulses (Uspensky et al., 2004). Here we demonstrate that the observed relationship probably is influenced by the measurement technique in a way that is consistent with theoretical prediction. It is further shown that for small time lags the double pulse velocity is a good approximation to the mean Doppler velo-city.