The Method of Calculation the Range of Dangerous Weather Areas in Airborne Radars with Signal Processing in the Frequency Domain

摘要

When developing an aircraft weather radar, its comparison with analogues and checking for compliance of its performance with the required international standards ARING-708A and RTCA DO-220 is made by calculating the energy potential. At the same time, there is no specific method for calculating the range of the main dangerous meteorological areas for flights: storm clouds, turbulence and windshear. This is due to the lack of standard radar models of dangerous thunderstorm cloud, turbulence and windshear, which would allow to obtain quantitative estimates of the range of detection of such phenomena and serve as a simple criterion for comparative analysis, and when setting requirements to develop on-board radar warning systems about the presence of dangerous air areas on the flight path. This article presents a method for calculating detection ranges for thunderstorms, turbulence and windshear under the condition of processing the reflected signal in the frequency domain, which is based on the model of the standard storm cell and the model of the minimum dangerous for flight area of windshear introduced by the authors.