Incoherent scatter experiments at Jicamarca using alternating codes
نویسنده
چکیده
An incoherent scatter experiment using alternating coded pulses has been implemented at Jicamarca. The experiment is intended to facilitate aeronomy research in the topside and protonosphere. By virtue of utilizing the full duty cycle capabilities of the radar transmitter, the experiment has improved sensitivity over the conventional double pulse experiment and permits multiple parameter estimation at protonospheric altitudes. Error analysis, including the estimation of the complete error covariance matrix for the alternating coded pulses, is discussed. Example density, temperature, and composition data illustrate the capabilities of the new experiment.
منابع مشابه
Orthogonal-polarization alternating codes
[1] We propose that by using orthogonal polarizations for alternating bauds of an alternating code, improvements are available both in cycle length, by means of using weak condition alternating codes, and in code performance through a reduction of autocorrelation function estimate variances by a factor of 4. This means an increase in the speed of incoherent scatter radar experiments by the same...
متن کاملGround Clutter Cancellation in Incoherent Radars: Solutions for Eiscat Svalbard Radar
Incoherent scatter radars measure ionosphere parameters using modi®ed Thomson scatter from free electrons in the target (see e.g. Hagfors, 1997). The integrated cross section of the ionospheric scatterers is extremely small and the measurements can easily be disturbed by signals returned by unwanted targets. Ground clutter signals, entering via the antenna side lobes, can render measurements at...
متن کاملTransmission code optimization method for incoherent scatter radar
When statistical inversion of a lag profile is used to determine an incoherent scatter target, the posterior variance of the estimated target can be used to determine how well a certain set of transmission codes perform. In this work we present an incoherent scatter radar transmission code optimization search method suitable for different modulation types, including binary phase, polyphase and ...
متن کاملAproximação de nuvens de pontos de dados por meio de superfícies de Bézier
The computational and empirical modelling of geophysical phenomena, such as F region zonal plasma drifts, is a basic tool for the understanding and forecasting of effects that have great social-economic impact on the human activities. This work proposes, develops and implements a model, based on Computer Aided Geometric Design techniques, to F region zonal plasma drifts over Jicamarca, Peru. Am...
متن کاملNew 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 ...
متن کامل