Estimating uncertainties in incoherent scatter radar parameters from random variations in time series data

New Incoherent Scatter Radar Measurement Techniques and Data Analysis Methods

This dissertation presents new incoherent scatter radar measurement techniques and data analysis methods. The measurements used in the study were collected by connecting a computer-based receiver to the EISCAT (European Incoherent SCATter) radar on Svalbard. This hardware consists of a spectrum analyzer, a PCI-bus-based programmable digital I/O card and a desktop computer with a large-capacity ...

A statistical study of ionospheric profile parameters derived from Millstone Hill incoherent scatter radar measurements

[1] Diurnal, seasonal, and solar activity variations of the bottomside electron density profile parameters B0 and B1, representing the F2 layer thickness and shape, are studied using a large incoherent scatter radar dataset for Millstone Hill covering the period 1976–2002. These results are compared with the latest IRI model. Our statistical study is characterized by morning and afternoon falls...

Errors due to random noise in velocity measurement using incoherent-scatter radar

The random-noise errors involved in measuring the Doppler shift of an ‘incoherent-scatter’ spectrum are predicted theoretically for all values of 1 e /1 i from 1.0 to 3.0. After correction has been made for the effects of convolution during transmission and reception and the additional errors introduced by subtracting the average of the background gates, the rms errors can be expressed by a sim...

Missing data imputation in multivariable time series data

Multivariate time series data are found in a variety of fields such as bioinformatics, biology, genetics, astronomy, geography and finance. Many time series datasets contain missing data. Multivariate time series missing data imputation is a challenging topic and needs to be carefully considered before learning or predicting time series. Frequent researches have been done on the use of diffe...

Incoherent Scatter Radar — Spectral Signal Model and Ionospheric Applications