Design of FIR Digital Filter Based on CSD Code
Guo Hong Li, Wei Yan Lang, Xu Bai, Hui Hu · Applied Mechanics and Materials · 2013
A high precision FIR digital filter is achieved based on CSD code. The characteristic of CSD coding is described and the structure of the FIR filter based on time division multiplex is given. FIR filter coefficients is generated by fadtool of MATLAB . The digital filter module is designed by Verilog HDL and simulated under QUARTUS II and MATLAB environment. The results show that the design can improve the accuracy of data acquisition significantly and reduce the use of FPGA resource.