含瓦斯煤破裂信号的量子优化降噪模型
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辽宁工程技术大学电气与控制工程学院辽宁125105

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TH865;TD713;TN911.4

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国家自然科学基金(51974151)项目资助


Quantum-optimized noise reduction model for gas-containing coal rupture signals
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Faculty of Electrical and Control Engineering, Liaoning Technical University, Liaoning 125105,China

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    摘要:

    为剔除含瓦斯煤破裂信号采集过程中夹杂的扰动噪声,提出一种基于改进量子群算法(IQPSO)优化变分模态分解(VMD)的含瓦斯煤破裂信号量子优化降噪模型。针对VMD受限于分解个数和惩罚参数的选取进而影响降噪效果,采用IQPSO算法优化VMD参数寻优过程,在QPSO算法中引入决策权重系数和自适应控制因子,提高算法粒子决策自适应性和参数搜索能力。利用参数优化的VMD算法分解含瓦斯煤破裂信号,计算各信号分量的有效相关系数来辨识噪声临界点,采用小波变换处理高频噪声并重构剩余分量得到降噪后的含瓦斯煤破裂信号。通过仿真信号和现场实测信号将降噪模型与EMD、VMD、PSO-VMD、SSA-VMD、GWO-VMD模型进行降噪效果对比。实验结果表明,提出模型处理后信号的信噪比提升20%以上、均方根误差降低至0.03以下,能量占比在90%以上,3项指标均优于其他降噪模型,自适应性和分解效率较强,能够有效保留信号局部特征,对现场复杂信号具有更好的降噪效果。

    Abstract:

    In order to eliminate the disturbance noise in the process of gas coal rupture signal acquisition, a quantum optimization noise reduction model for gas coal rupture signal based on Improved quantum swarm algorithm (IQPSO) optimized variational mode decomposition (VMD) was proposed. In view of the fact that VMD is limited by the number of decompositions and the selection of penalty parameters, which affects the noise reduction effect, the IQPSO algorithm is used to optimize the optimization process of VMD parameters, and the decision weight coefficient and adaptive control factor are introduced into the QPSO algorithm to improve the particle decision adaptability and parameter search ability of the algorithm. The VMD algorithm with parameter optimization is used to decompose the rupture signal of gas-containing coal, the effective correlation coefficient of each signal component is calculated to identify the critical point of noise, and the wavelet transform is used to process the high-frequency noise and reconstruct the remaining components to obtain the denoised gas-containing coal rupture signal. The noise reduction model is compared with the EMD, VMD, PSO-VMD, SSA-VMD, GWO-VMD models through the simulation signal and field measured signal. The experimental results show that the signal-to-noise ratio of the proposed model is increased by more than 20%, the root mean square error is reduced to less than 0.03, and the energy proportion is more than 90%, which is better than other noise reduction models, and the adaptability and decomposition efficiency are strong, which can effectively retain the local characteristics of the signal and have a better noise reduction effect on complex signals in the field.

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付华,刘雨竹,周文铮.含瓦斯煤破裂信号的量子优化降噪模型[J].电子测量与仪器学报,2024,38(10):212-223

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  • 在线发布日期: 2024-12-16
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