Interferometric calibration and the first elevation observations at EKB ISTP SB RAS radar at 10-12 MHz

TL;DR

This paper presents a new calibration method for the EKB ISTP SB RAS radar using full waveform data, enabling more accurate elevation measurements and initial observations at 10-12 MHz.

Contribution

It introduces a modernization of meteor trail calibration using full waveform signals, improving reliability and accuracy of elevation measurements.

Findings

Calibration method shows good agreement with existing E-layer calibration.

First regular elevation observations at 10-12 MHz are demonstrated.

Preliminary interpretation of elevation data is provided.

Abstract

The method for calibrating elevation measurements at EKB ISTP SB RAS radar obtained for the period 20/09/2019 - 18/11/2019 is presented. The calibration method is a modernization of the method for calibrating radar by meteor trails. The main difference of the method is the use of not a statistically processed FitACF data, but the full waveform of the signals scattered on the meteor trails. Using the full waveform makes it possible to more reliably distinguish meteor scattering from other possible scattered signal sources, and to determine meteor heights from the trail lifetime using the NRLMSIS-00 model. A comparison of the results with the results of E-layer calibration method shows a good agreement. The first examples of regular elevation observations at the EKB ISTP SB RAS radar are presented, and their preliminary interpretation is given.