Modeling and Experimental Evaluation of Amplitude Error in the Determination of the Angle of Arrival in RWR Sensors

Authors

  • Adônis Virgílio Teixeira Punti 2° Esquadrão do 6º Grupo de Aviação (2º/6º GAv)
  • Felipe Streitenberger Ivo Instituto Tecnológico de Aeronáutica (ITA)
  • Lucio Pinheiro Amaro Instituto Tecnológico de Aeronáutica (ITA)
  • Renato Machado Instituto Tecnológico de Aeronáutica (ITA)

DOI:

https://doi.org/10.55972/spectrum.v26i1.428

Keywords:

AOA RWR Simulation Amplitude Comparison Method

Abstract

The Angle of Arrival (AOA) estimated information in Radar Warning Receiver (RWR) sensors using the amplitude comparison method is susceptible to various error sources that can affect its accuracy and precision. Variation in Signal-to-Noise Ratio (SNR), which is directly related to the signal amplitude received by the sensor, is one such factor that can compromise AOA determination. This paper presents a laboratory experiment conducted to assess the AOA error due to variations in SNR. A theoretical analysis is performed, where the SNR is a function of the threat detection angle and the receiver response, including the antenna pattern and position. The experimental analysis validates the theoretical results of the model. Finally, the feasibility of evaluating AOA processing of RWR sensors in a reduced chain configuration through conducted tests is demonstrated, offering an alternative to field or anechoic chamber testing.

References

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Published

2025-09-23

How to Cite

[1]
A. V. Teixeira Punti, F. Streitenberger Ivo, L. Pinheiro Amaro, and R. Machado, “Modeling and Experimental Evaluation of Amplitude Error in the Determination of the Angle of Arrival in RWR Sensors”, Spectrum, vol. 26, no. 1, pp. 55–60, Sep. 2025.

Issue

Vol. 26 No. 1 (2025): Spectrum

Section

Electronic Warfare and Remote Sensing

Categories

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Copyright (c) 2025 Adônis Virgílio Teixeira Punti, Felipe Streitenberger Ivo, Lucio Pinheiro Amaro, Renato Machado

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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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