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| A Robust Passive Localization Algorithm Based on Spherical Cubature Kalman Filter |
| LIU Yuanyuan， ZHANG Shunjia， YANG Yi， GENG Jianqiang |
| Shanghai Electro-Mechanical Engineering Institute， Shanghai 201109， China |
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Abstract In substantial interference and adversarial combat environments, carrier aircraft should avoid prolonged radar exposure to targets to improve safety. In this scenario, the missile can only be operated in passive mode, detecting the radiation signal of the target itself through passive radar to obtain its orientation. Due to the inability to directly obtain distance and velocity information, new challenges arise for designing a target localization algorithm. Besides, measurements obtained by passive radar often contain a large number of outliers, and partial frames may be lost. Therefore, date anomalies are a complicated problem frequently encountered in engineering practice. Improper handling can lead to algorithm divergence. To address these problems, this paper conducts research on the issue of passive localization with only angle measurements. A robust passive positioning algorithm based on the spherical cubature Kalman filter had been designed and tested.
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Received: 25 November 2024
Published: 31 October 2025
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2025, Vol. 8 
