@article{sun_xue_gao_2024,  title={Modified Gaussian Mixture Probability Hypothesis Density Filtering using Clutter Density Estimation for Multiple Target Tracking},  volume={16},  ISSN={2175-9146},  url={https://doi.org/10.1590/jatm.v16.1325},  DOI={10.1590/jatm.v16.1325},  journal={Journal of Aerospace Technology and Management},  publisher={Departamento de Ciência e Tecnologia Aeroespacial},  author={Sun, Lifan and Xue, Wenhui and Gao, Dan},  year={2024},  pages={e624} }