Real-time data acquisition and interpretation capabilities of the Dynasonde: 1. Data acquisition and real-time display

摘要

Dynasonde software for data acquisition in three modes is described. The ‘I’ mode corresponds to an ionogram format but includes complete echo polarization and angle-of-arrival information. K mode provides time series and high time resolution at freely selected sounding frequencies. B mode combines features of the other two modes. All share a real-time noise rejection method which is described statistically. The system includes a digitally driven CRT (cathode ray tube) display and a variety of display formats for real time or deferred examination of data; in particular, dynamic time-lapse displays of ionospheric activity can be maintained by the Dynasonde.