Flight Experiment for Calibrating the Measurement System of a Height Finding Radar Using Kinematic GPS Positioning

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  • キネマティックGPSを用いた測高レーダの較正のための飛行実験
  • キネマティック GPS オ モチイタ ソッコウ レーダ ノ コウセイ ノ タメ

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Abstract

This paper deals with a flight experiment for calibrating the bias errors of the measurement system of a height finding radar. The radar, namely, the Navigation Accuracy Measurement System (NAMS), uses a vertically rotating fan beam antenna and estimates the height of an aircraft flying with a constant speed and altitude within the coverage of the beam. An aircraft (B99) equipped with GPS receivers was used for obtaining the GPS data on the aircraft position. A post processing for the GPS data obtained from the onboard receiver and those at a base station installed near the radar site was carried out using a kinematic positioning software called Flykin. The positions obtained from the radar and kinematic GPS processing (KGPS) were compared and the biases of the radar were estimated by the least square method. This paper proposes the method for estimating biases using KGPS data and examples of the results are shown briefly.

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