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稳定性控制一直是反Q滤波技术中最为关键的问题之一,其性能的优劣将决定反Q滤波的补偿效果和分辨率提高程度.本文在前人研究基础上,提出了二次函数法、三角函数法2种新的稳定性控制方法,并利用理论合成数据模型与已有的稳定因子法稳定性控制方法进行了对比,分析结果表明:3种稳定性控制方法均可以有效增强反Q滤波过程中的稳定性.但稳定因子法深层振幅恢复较弱,深层分辨率提高有限;而新方法具有更强的振幅恢复效果,频带可拓宽10 Hz以上,深层分辨率改善明显.
Stability control has always been one of the most crucial problems in inverse Q filtering, and its performance will determine the compensation effect and resolution enhancement of inverse Q filtering.Based on the previous studies, this paper proposes the quadratic function method , Trigonometric method two kinds of new stability control methods, and the use of theoretical synthetic data model and the existing stability factor stability control method were compared, the results show that: three kinds of stability control methods can effectively enhance the anti-Q But the stability in the filtering process.But the stability factor method is weak in the recovery of the deep amplitude, and the resolution in the deep layer is limited.While the new method has a stronger amplitude recovery effect, the frequency band can be broadened more than 10 Hz, and the resolution of the deep layer is obviously improved.