Estimation of the Gain in the Transionospheric Radio Channel Capacity Under the Presence of Stochastic Error in Experimental Measuring Total Electron Content of the Ionosphere

Abstract

Research addressed the problem of increasing the transionospheric communication channel capacity after adaptive compensation for frequency dispersion when total electron content of the ionosphere is measured with a stochastic error. To estimate that errors in the experiments we developed a hardware software complex. The measurements were simultaneously gathered from multiple receivers located in the area with a radius smaller than the correlation radius of TEC variations. Based on the developed analytical model we showed that, at a constant SNR, the transionospheric channel capacity increases with an increase in the channel bandwidth, significantly exceeding the channel coherence bandwidth. It was found that the errors in measuring TEC limits the possibilities of spreading channel bandwidth and increasing capacity. Experimental studies showed that under the presence of errors, the gain after correction depends on the season of the year and was observed 2.5 … 7 times.