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我们曾采用压电式陀螺仪角速度计检测行走车辆的角速度。但由于行走车发动机的振动、路面不平等因素的影响，在获得的信号中混有噪声，因而存在一定的误差。为了提高检测信号精度，有必要消除噪声。我们针对上述问题，采用数字滤波的软件实现方法来消除噪声，提高检测精度。对由实验所获得的数据进行了有、无数字滤波处理的对比分析，获得了较好的结果。这表明本研究通过软件的方法，既提高了检测精度，又降低了硬件成本。
We have used piezoelectric gyroscope angular velocity meter to measure the angular velocity of a walking vehicle. However, due to the vibration of the vehicle running the car, the impact of road surface inequality, the signal is mixed in the noise, so there is a certain error. In order to improve the accuracy of the detection signal, it is necessary to eliminate the noise. We address the above issues, the use of digital filtering software to eliminate noise and improve detection accuracy. The experimental data obtained with no digital filtering comparative analysis, get better results. This shows that this study through the software method, both to improve the detection accuracy, but also reduce the hardware cost.