Figure 2.
(a) & (b). RTI plots of Event 20100415_023541 before and after H-ICS processing with normalized SNR indicated by the colour bar. (c) The light curves of the three receivers: A, B and C. Note the strong interference (beat) pattern as the meteor enters the beam followed the terminal flaring. (d) The spatial imaging results shown in the 3D X–Y–Z domain and its 2D projections with time (s) given by the colour bar. As shown in the left-bottom plot (the X–Y plane) in (d), this event exhibits a range-rate νf = 7.5 km s−1 while the vector velocity ν ≈ [−8.0 4.9 −7.4] km s−1 with magnitude |ν| ≈ 12 km s−1 at a zenith angle θ ≈ 51.8°. The relative mean-square error (e) of the fitted line is ∼0.002%. Note the evolution of the single flare-trail echo.