摘要
针对液浮摆式加速度计再平衡回路信号的频谱特点,应用欠采样技术对再平衡回路的信号进行采用处理,设计出无限冲击响应二阶巴特沃斯低通滤波器并实现,通过MATLAB仿真实验,验证了欠采样方法对于平衡回路信号处理的可行性。该方法在再平衡回路的信号采集及前端处理部分都达到了理想的结果,具有良好的实用性。
According to the characteristic of the input signal of the accelerometer rebalanc eloop, the author processes the signal of rebalance loop with the under-sampling technique, and then designs an IIR two order Butterworth low-pass digital filer. Through the simulation experiment of MATLAB, the under-sampling technique is proved to be feasible to deal with the signal of rebalance. Besides, this method achieves optimal results in the acquisition of signal and the front-processing of the rebalance loop, and has a good practicality.
出处
《电子产品可靠性与环境试验》
2015年第2期60-63,共4页
Electronic Product Reliability and Environmental Testing
