基于遍历加权包络谱的推进器调制线谱提取方法
伍柯霖,孙宇航,徐佳峰,童威棋,董攀,吴大转

Extraction method of modulation frequencies of propulsor based on traversal weighted envelope spectrum
Kelin WU,Yuhang SUN,Jiafeng XU,Weiqi TONG,Pan DONG,Dazhuan WU
表 5 不同解调方法对于轴叶频及其谐波的检测能力对比
Tab.5 Comparison of detection capability of different demodulation methods for shaft frequency, blade passing frequency and their harmonics
方法次数CNR
FK EESEESIESTWES
第1次测试0.710.810.732.47
第2次测试0.850.860.851.85
第3次测试0.730.790.701.22