| 3. | Using fourier transformation computational method , the fir filter was designed . the acceleration signal dynamic error was revised through the fft 、 ifft and frequency correction in the operating frequency scope . the signal processing had been realized on dsp , and the signal data was really recorded 应用傅里叶变换的计算方法,并且完成了fir滤波器的设计,通过傅里叶正反变换和频率补偿实现工作频率范围内加速度信号动态误差修正,在dsp上实现了信号处理,真实地记录了信号数据。 |