drift signal meaning in English

测偏流信号
漂流航标

The detecting accuracy of the beam drift would be improved , as a high performance acoustooptic modulator modulates the frequency of the laser beam drift signal far away from the power frequency , the double power frequency and high frequency noises
具体包括: 1 .利用声光调制器将光束漂移量信号调制到远离工频及其倍频干扰和高频噪声的频带段,以期提高光束漂移量的检测精度。
Thirdly , in the environment of labview , several kinds of vis used for sensor signal test are designed , including wave generation , time domain measurement , filter disposal , frequency analysis , etc . after that , wavelet analysis in the application of one - dimensional signal de - noise is studied , threshold and translation invariance wavelet de - noise are realized , and wavelet de - noise vi for zero drift signal of the fiber optic gyro in fcs is designed using labview
接着,在labview环境下开发了多种用于传感器信号测试的虚拟仪器,具有波形发生、时域测量、滤波处理、频谱分析等多种功能。随后,研究了小波分析在一维信号消噪中的应用,实现了labview环境下的阈值法和平移不变量法小波消噪,并利用labview设计了飞控系统中光纤陀螺零漂信号的小波消噪仪。