Digital Bandpass Filter Design of Loran-c Receiver
Xuegang Wang · Gnss World of China · 2011
A design of direct FIR filter according to the character of loran C signal is presetend.On the basis of FIR filter,the way of designing interpolated FIR filter is introduced,and frequency chart in the following part is showen.With the comparing of these two filters,we can find that interpolated FIR filter save many taps in the form of computational workloads and resource occupancy,and it has a large disadvantage in project application.Moreover,the more narrow of the band we need and the more of the sampling frequency,the more resource it saves.