... Effects of meteor ablation and the chemistry and physics of the upper atmosphere . ... Ablation and Ionization Modeling: Implications for Trail Instabilitiesand Head Echoes . Radar Observations of Meteors at a Polar Latitude . ... Radar meteor shower observations: processing and some results . ... Parameter estimation of meteors from radar head echoes combined with optical observations . ... Observations of meteor-head echoes using the Jicamarca 50 MHz radar in interferometer mode . ...
... 2.3 Data acquisition Spectra generated by the Multibeam correlator contain the usual structure seen in spectra from other H i instruments: a bandpass spectrum which is the sum of the sky , ground and receiver temperatures multiplied by the product of the filters in the receiver chain; superimposed on this is a noise ... Note also that sources extended much beyond ,40 arcmin can be imaged poorly in HIPASS images because of the bandpass sidelobe effect described in Section 3.3. ...