ionosphere: Johns Hopkins University Ionosphere Database
This radar data was collected by a system in Goose Bay, Labrador.
This system consists of a phased array of 16 high-frequency antennas with a
total transmitted power on the order of 6.4 kilowatts. See the paper
for more details. The targets were free electrons in the ionosphere.
"Good" radar returns are those showing evidence of some type of structure
in the ionosphere. "Bad" returns are those that do not; their signals pass
through the ionosphere.
Received signals were processed using an autocorrelation function whose
arguments are the time of a pulse and the pulse number. There were 17
pulse numbers for the Goose Bay system. Instances in this database are
described by 2 attributes per pulse number, corresponding to the complex
values returned by the function resulting from the complex electromagnetic
FormatA data frame with 351 observations on the following 35 variables.
The first 34 continuous covariables are used for the prediction.
The 35th attribute is either
g ("good") or
according to the definition summarized above. This is a binary