Results 171 to 180 of about 2,902 (228)

Application of Biphase Complete Complementary Code for Ionospheric Sounding. [PDF]

open access: yesSensors (Basel), 2018
Yang G   +7 more
europepmc   +1 more source

Comparison of the Traditional Ionosonde and the Digital Ionosonde Based on Direct Digitization

IEEE Geoscience and Remote Sensing Letters, 2017
A new digital ionosonde based on direct digitization has been developed in the Electronic Information School of Wuhan University. There is no stage of frequency translation between the baseband and the radio frequency, and the realization of the direct digitization greatly simplifies the architecture to achieve optimized design. It is compared with the
Lei Qiao, Gang Chen, Xiao Cui
exaly   +2 more sources

Ionosond-MS ionosonde receiving antenna system

2020 7th All-Russian Microwave Conference (RMC), 2020
The article contains description of the Ionosonde-MS chirp sounder receiving antenna system that was refined upon for instrumental separation of received signals of vertical and near-vertical incidence sounding based on polarization characteristics. The results of its modelling and measured characteristics in the entire range of working frequencies are
Aleksei Podlesnyi   +2 more
openaire   +1 more source

AISP programmable ionosonde

open access: yesAdvances in Space Research
Umberto Sciacca   +2 more
exaly   +2 more sources

Design of an Ultrawideband Ionosonde

IEEE Geoscience and Remote Sensing Letters, 2015
In this letter, an ultrawideband ionospheric sounding system was designed for ionospheric research and communication channel management. The frequency band of this ionosonde ranges from high frequency to very high frequency. It can be flexibly used at both monostatic and bistatic stations as a GPS receiver module was integrated.
Hengqing Sun   +4 more
openaire   +1 more source

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