Radio Techniques for Probing the Terrestrial Ionosphere |
Common terms and phrases
absorption Alaska amplifier amplitude angle antenna array Arecibo auroral backscatter backscatter sounder basic beacon Block diagram collision frequency cosmic noise cross modulation Davies described diffraction direct backscatter disturbing Doppler echoes effects EISCAT electric field electron density equation F-layer F-region facility Faraday rotation Fresnel zone geomagnetic field geometry groundscatter Hargreaves Helliwell HF heater HF heating high latitudes Hunsucker incoherent scatter incoherent scatter radar interaction investigators ionogram ionosonde ionospheric absorption ionospheric irregularities ISR's Jicamarca layer located magnetic field magnetoionic measure method Millstone Hill noise temperature oblique observed obtained parameters path phase plane plasma polarization probe propagation pulse radar system radiation radio techniques radio waves range receiver reflection region riometer satellite scintillation shown in Fig signal spectrum studies temperature terrestrial ionosphere theory topside sounders transmitter Tromsø Utlaut variation vector velocity vertical incidence virtual height wanted wave whistler