Research Article
A Design of Digital High Multiple Decimation Filter in Intermediate Frequency Domain
@INPROCEEDINGS{10.1007/978-3-030-94554-1_17, author={Yaqin Tong and Wenxin Li and Fengyuan Kang}, title={A Design of Digital High Multiple Decimation Filter in Intermediate Frequency Domain}, proceedings={Advanced Hybrid Information Processing. 5th EAI International Conference, ADHIP 2021, Virtual Event, October 22-24, 2021, Proceedings, Part II}, proceedings_a={ADHIP PART 2}, year={2022}, month={1}, keywords={Decimator Aliase Filter}, doi={10.1007/978-3-030-94554-1_17} }- Yaqin Tong
Wenxin Li
Fengyuan Kang
Year: 2022
A Design of Digital High Multiple Decimation Filter in Intermediate Frequency Domain
ADHIP PART 2
Springer
DOI: 10.1007/978-3-030-94554-1_17
Abstract
An important task of digital down conversion is to reduce the sampling rate. In order to carry out undistorted decimation, decimation filtering must be carried out before decimation to prevent spectrum aliasing. Based on the design idea of hierarchical cascade filter, an implementation method of 100 times decimator filter is given. The sampling factor and frequency response of each filter are analyzed in detail, and the theoretical analysis and practical logic implementation methods are given. The practical application results prove the correctness and feasibility of the design of high multiple decimator filter. This multi-stage decimation method not only enhances the stability of the system, but also greatly reduces calculation and saves resources.
