嵌入式数字滤波器在线处理脉冲堆测量脉冲波形信号

Pulse Waveform of Pulsed Reactor Online Processing with Embedded Digital Filter

脉冲波形信号是脉冲堆特性的反应,实际测量中易混杂大量噪声干扰信号。脉冲波形信号的在线滤波与提取对于脉冲参数的计算及脉冲堆性能研究具有重要意义。文中对脉冲波形信号进行理论分析,运用数字信号处理技术,提出滤波器的设计指标,设计基于有限冲击响应(FIR)的嵌入式数字滤波器,并将其应用于在线测量装置中。实验结果表明:该嵌入式数字滤波器可以有效滤除噪声干扰信号,实现脉冲波形信号实时在线提取与处理,有利于脉冲参数的计算。

Pulse waveform reflects the pulsed character of pulsed reactor,it＇s mixed with a mass of noise and interference signal when measuring it. Online filter and extracting of pulse waveform is significant to pulse parameter calculating and research on pulsed reactor. The article analyzes pulse waveform on theory,uses Digital Signal Processing Technology,comes up with indicators of a filter. An Embedded Digital Filter is designed based on Finite-Impulse Response（ FIR） filter. It is used in online measuring device. The result shows that the Embedded Digital Filter will eliminate noise and interference signal,extract the pulse waveform signal which is used for Pulse parameter calculating.