SPACEBORNE SAR AND TELEMETRY DATA REDUCTION METHOD FOR SPACEBORNE SAR

摘要

A method of reducing telemetry data of a satellite-mounted image radar is disclosed. The telemetry data reduction method of the present invention includes the steps of collecting telemetry data from at least one of each component of an image radar according to a preset period, and calculating a change value according to each period of the collected telemetry data. Step of extracting a specific change value corresponding to a time point at which the change value is changed in each section among the length and change value of each section in which the calculated change value is the same, and the maximum value corresponding to the extracted specific change value And calculating the number of bits, and generating compressed data of the telemetry data based on the calculated number of bits, a length for each section, and a specific change value.