Research on RCS measurement of ship targets based on conventional radars

• Autores: Huatao Tang, Hao Chang, Feng Liu, Bin Tian, Binbin Wang
• Localización: Applied Mathematics and Nonlinear Sciences, ISSN-e 2444-8656, Vol. 7, Nº. 2, 2022, págs. 1105-1116
• Idioma: inglés
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• Resumen

  • A measurement method and system based on conventional radars has been proposed to address the problem of radarcross-section (RCS) measurement of ship targets in open seas. Calibration errors for RCS measurement on ground planerange (GPR) are analysed, and the error elimination method and accurate RCS calculation formula are given. An RCSmeasurement system is designed by improving conventional radars. These systems measure two Luneburg lens reflectorsof different sizes on the lake. The average RCS of the big Luneburg lens reflector is obtained, and the error is calculated tobe 2.73% compared with its actual value, which verifies the rationality of the proposed measurement method and system.The system measures the RCS of a ship in the open sea and obtains its circumferential RCS distribution. The effect of theerror in the ship’s position calculation on the RCS measurement results is analysed, and the uncertainty range of the erroris obtained