2017/10/20 by O. I. Berngardt, Berngardt, Oleg I., Roman Fedorov +1
Physics and Astronomy · #Astro and Planetary Science #Planetary Science and Exploration #Atomic and Subatomic Physics Research
paper · pdf · doi:10.48550/arxiv.1710.07414
The paper presents the implementation of algorithms for automatic search for\nsignals scattered at meteor tracks based on the ISTP SB RAS EKB radar data. The\nalgorithm is divided into two phases - the detection of a meteoric echo and the\ndetermination of its parameters. In general, the algorithm is similar to the\nalgorithms used for specialized meteor radars, but uses direct fitting of\nreceived signal quadrature components by a model when finding the parameters of\nmeteor trail. Based on the analysis of maximum of the Geminid meteor shower\n13.12.2016 the aspect sensitivity of the scattered signals detected by the\nalgorithm was shown . This proves that the detected signals correspond to\nscattering by irregularities elongated with the direction to the radiant of the\nmeteor shower. This also confirms that the source of signals detected by the\nalgorithm are meteor traces. In this paper, we solve the inverse problem of\nreconstructing the vector of the neutral wind velocity from the radar data by\nthe weighted least-squares technique. A comparison of the roses of horizontal\nneutral winds obtained in the model of two-dimensional (horizontal) wind and\nthree-dimensional wind is made. Their similarity is shown and expected\npredominance of the zonal component over the meridional one is shown too. The\nimplemented algorithm allows us to process the scattered signals in the real\ntime. The detection algorithm has started its continuous operation at the ISTP\nSB RAS EKB radar at the end of 2016.\n