信号变换装置是飞行试验中状态测量和信号变换的重要设备。
The signal transform device is an important states measuring and signal transforming facility in the flight experiments.
将小波包变换和迭代交叉信息熵有机结合，从检测信号信息量差异性的角度出发，提出一种设备故障动态检测的新方法。
A new dynamic detection method for roll bearing faults was proposed based on wavelet packet and cross entropy from the angles of information differences of detection signals.
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