Abstract
A joint direction-of-arrival (DOA) and polarization estimation method based on multi-polarization sensitive circle array and joint spectrum in polarization and spatial domains has been investigated. Multi-polarization sensitive array is composed of several elements with different polarizations, which can avoid signal energy loss caused by the polarization mismatch or shelter and can estimate DOA and polarization parameters of incident signal with arbitrary polarization effectively. In addition, this structure can be better applied to conformal antenna. The joint spectrum in polarization and spatial domains is defined by using MUSIC (multiple signal classification) method. The estimation accuracy and resolving power under different SNR (signal-to-noise ratio) and snapshots are investigated to measure the performance of the method based on this structure. The simulation shows good performance for DOA and polarization estimation of single signal, and the polarization discrimination can improve the resolution when two signals arrival in closely direction.
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Acknowledgments
This work was supported by the National Science Foundation of China under Grant of NSFC-61571146 and the Fundamental Research Funds for the Central Universities under Grant of HEUCFP201769.
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Yang, J., Chen, T., Shi, L., Zhang, C. (2019). Joint DOA and Polarization Estimation Based on Multi-polarization Sensitive Array. In: Liang, Q., Mu, J., Jia, M., Wang, W., Feng, X., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2017. Lecture Notes in Electrical Engineering, vol 463. Springer, Singapore. https://doi.org/10.1007/978-981-10-6571-2_326
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DOI: https://doi.org/10.1007/978-981-10-6571-2_326
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