摘要
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。
おiezoelectric gyro angular velometers have been used to detect angle velocities of the vehicle. For the reasons of the engine vibration and unsmooth road and so on there are some harmful noises in signals detected, therefore there are errors. In order to destroy the noises and improve detecting accuracy, digital filter software is used. Data from experiments are analyzed in contrast digital filter with no digital filter. The results are very good. So this proved that detecting accuracy can be improved and hardware cost can be reduced by using software method.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
1997年第4期86-89,共4页
Transactions of the Chinese Society for Agricultural Machinery
基金
中国博士后科学基金
