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提出用参数估计法处理传感器信号，用流动噪声渡越时间估计法测量两相流流速，这相当于在时域完成白化预滤波再进行广义互相关。当传感器的空间滤波效应使信号频带变窄时，此法可以克服或改善常用的相关估计方法中存在的随机误差较大、分辨率低及动态响应慢等不足。用此法已研制出相应的测量仪表雏型，给出了气水两相流管道的实验结果。
The method of parameter estimation is proposed to process the sensor signal and the flow noise transit time estimation method is used to measure the velocity of the two-phase flow. This is equivalent to performing the generalized cross-correlation of the pre-filtering and whitening in the time domain. When the spatial filtering effect of the sensor narrows the signal band, this method can overcome or improve the shortcomings of the commonly used correlation estimation methods such as large random error, low resolution and slow dynamic response. With this method has been developed corresponding to the prototype of measuring instruments, gas-water two-phase flow pipe experiment results are given.