METHODS, SYSTEMS, AND COMPUTER READABLE STORAGE DEVICES FOR PERFORMING DIGITAL HART DEMODULATION

摘要

An input signal, including a process signal modulated with a sinusoidal signal, is converted from analog form to digital form. The converted input signal is filtered through a first programmable digital filter to extract the process signal. The converted input signal is filtered through a second programmable digital filter to extract the sinusoidal signal. A binary data signal is created based on the extracted sinusoidal signal.