摘要
针对光纤陀螺微振动信号具有较强的时频耦合,抗干扰性能差,检测性能不好的问题。提出一种新的光纤陀螺微振动信号检测算法。通过构建考虑噪声干扰的光纤陀螺微振动信号模型,采用分数阶Fourier变换对微弱振动信号进行时频分析和噪声分离,采用四阶累积量切片后置算子进行光纤陀螺微振动信号的谱峰搜索,实现信号的抗干扰检测。实验结果表明,采用该方法进行光纤陀螺微振动信号检测的准确概率较高,对噪声和旁瓣波束干扰的抑制能力较好。
The micro vibration signal of fiber ference performance and poor performance. A new optic gyroscope has strong time frequency coupling, poor anti-interdetection algorithm for micro vibration signal of fiber optic gyroscope is presented. By constructing consider noise interference fiber optic gyro micro vibration signal model, using the fractional Fourier transform of weak vibration signal time-frequency analysis and noise separation by fourth order cumulant slices post operator fiber optic gyro micro vibration signal spectrum peak search, realize signal anti interference detection. The experimental results show with high accuracy, and the ability that the method is used to detect the to suppress noise and sidelobe beam micro vibration signal of fiber optic gyroscope interference is better.
出处
《激光杂志》
北大核心
2016年第10期57-61,共5页
Laser Journal
基金
国家自然科学基金资助项目(61076080)
苏州经贸职业技术学院自然一般项目(KY-ZR1608)
关键词
光纤陀螺
干扰
微振动信号
信号检测
fiber optic gyro
chaos
micro vibration signal
signal detection
作者简介
俞梁英(1978-),女,汉族,江苏苏州人,讲师、工程师,研究生。主要研究方向:电子与通讯;
王子欧(1968-),男,辽宁大连人,博士,副研究员。研究方向:电路与系统,电路建模。