• Chinese Journal of Ship Research
  • Vol. 19, Issue 6, 293 (2024)
Jiansen ZHAO, Zhihao TAN, Haiyan DUAN, Xia LIU, and Shengzheng WANG
Author Affiliations
  • Merchant Marine Academy, Shanghai Maritime University, Shanghai 201306, China
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    DOI: 10.19693/j.issn.1673-3185.03464 Cite this Article
    Jiansen ZHAO, Zhihao TAN, Haiyan DUAN, Xia LIU, Shengzheng WANG. A separation algorithm for satellite-based AIS received signals based on SSA and RobustICA[J]. Chinese Journal of Ship Research, 2024, 19(6): 293 Copy Citation Text show less
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    信号帧数据
    上升沿/ bit8
    训练序列/ bit24(0101…01)
    开始标志/ bit8(01111110)
    数据/ bit168
    帧校验序列/ bit16
    结束标志/ bit8(01111110)
    缓冲位/ bit24
    Table 1. AIS signal frame format
    变量奇异值变量奇异值
    σ127 616.365 1σ111 568.801 6
    σ219 855.551 9σ121 561.145 7
    σ35 182.854 2σ131 539.208 5
    σ42 487.024 2σ141 537.262 5
    σ51 659.145 32σ151 503.190 7
    σ61 658.603 3σ161 501.148 3
    σ71 624.364 8σ171 475.825 1
    σ81 614.953 5σ181 471.193 3
    σ91 602.127 6σ191 397.357 1
    σ101 598.716 4σ201 348.039 4
    Table 2. Singular value of matrix decomposition for noisy signal
    降噪信号信号均方误差
    Z1Z2Z3Y1Y2Y3
    S10.028 73.217 93.371 80.272 33.581 43.675 9
    S23.388 40.032 53.232 23.717 30.267 13.702 5
    S33.421 23.357 40.030 83.837 73.802 80.284 7
    Table 3. Mean squared errors between signals
    实验编号迭代次数
    S-RICAS-FICA
    11326
    21229
    31429
    41430
    51532
    61330
    71231
    81429
    91528
    101429
    Table 4. Comparison of the number of iterations between two algorithms
    实验编号计算时间/ ms
    S-RICAS-FICARICAFICA
    118.860 120.554 11.699 92.895 3
    219.28920.760 51.349 22.425 7
    318.658 419.938 71.260 82.497 6
    418.560 520.822 31.129 12.652 1
    518.710 820.576 51.111 82.305 8
    618.60319.927 51.106 42.331 2
    718.100 320.670 31.021 52.209 1
    818.181 320.533 51.190 92.314 3
    918.442 219.860 81.290 32.453 8
    1018.069 119.990 71.159 62.560 8
    Table 5. Comparison of the calculation time for ifferent algorithms
    Jiansen ZHAO, Zhihao TAN, Haiyan DUAN, Xia LIU, Shengzheng WANG. A separation algorithm for satellite-based AIS received signals based on SSA and RobustICA[J]. Chinese Journal of Ship Research, 2024, 19(6): 293
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