[2] [2] Kuang J, Niu X, Chen X. Robust pedestrian dead reckoning based on MEMS-IMU for smartphones [J]. Sensors, 2018, 18(5): 1391.

[9] [9] Li W, Jelfs B, Kealy A, et al. Cooperative localization using distance measurements for mobile nodes [J]. Sensors, 2021, 21(4): 1507.

[11] [11] Li W, Jia Y, Du J. TOA-based cooperative localization for mobile stations with NLOS mitigation [J]. Journal of the Franklin Institute, 2016, 353(6): 1297-1312.

[13] [13] Blom H A, Bar-Shalom Y. The interacting multiple model algorithm for systems with Markovian switching coefficients [J]. IEEE Transactions on Automatic Control, 1988, 33(8): 780-783.

[17] [17] Meng J, Ren M, Wang P, et al. Improving positioning accuracy via map matching algorithm for visual-inertial odometer [J]. Sensors, 2020, 20(2): 552.

[18] [18] Subedi S, Pyun J-Y. A survey of smartphone-based indoor positioning system using RF-based wireless technologies [J]. Sensors, 2020, 20(24): 7230.

[19] [19] Yao S, Su Y, Zhu X. High precision indoor positioning system based on UWB/MINS integration in NLOS condition [J]. Journal of Electrical Engineering & Technology, 2022, 17(2): 1415-1424.

[20] [20] Alhajri M I, Goian A, Darweesh M, et al. Hybrid RSS-DOA technique for enhanced WSN localization in a correlated environment [C]// International Conference on Information and Communication Technology Research (ICTRC), 2015: 238-241.

[22] [22] Tao Y, Wu L, Siden J, et al. Monte Carlo-based indoor RFID positioning with dual-antenna joint rectification [J]. Electronics, 2021, 10(13): 1548.