Abstract
The traditional digital deconvolution filter which is influenced by its structure has some problems in online compensation of the test system, such as instability, slow speed, and low precision. So we design a digital IIR deconvolution filter which can be realized on Field Programmable Gate Array to compensate the dynamic characteristics of the test system quickly and use the cascaded structures which is easy to realize zeros and poles to design 4-stage cascaded differential compensation module which is assigned for the zero-pole. The Xilinx Spartan 6 platform is used to verify the stability and real-time performance of the module whose parameters are quantified, through dynamic calibration experiment to analyze dynamic compensation effect of Endevco 8530c pressure sensor and its test system of dynamic compensation effect on the time and frequency domain characteristics. Compare the result of compensation by direct type I structure, this kind of digital filter design method has the advantages of small quantitative impact, fast calculation speed, and configurable parameters, to some extent make up for the defect of the online compensation system characteristics.
Published Version
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