연세대학교 기초디지털실험 10주차 결과레포트 (Filter/Equalizer)
- 최초 등록일
- 2022.04.18
- 최종 저작일
- 2020.11
- 12페이지/
어도비 PDF
- 가격 5,000원
소개글
"연세대학교 기초디지털실험 10주차 결과레포트 (Filter/Equalizer)"에 대한 내용입니다.
목차
Ⅰ. Experiment
Ⅱ. Discussion
Ⅲ. Reference
본문내용
Ⅰ. Experiment
1. filter/equalizer in C
The IP block of the previous project was exported to hardware and launched to vitis. First, I changed the coefficient of filter to match the sampling frequency used in our project. I used the first order LPF, the first order HPF, and the second order BPF. LPF follows the following formula, and the sampling frequency in our project is . The calculation process for each coefficient is as follows.
HPF transfer function follows the following expressions, and the calculation of coefficients for HPF is as follows:
<중 략>
First, I implemented functions of lpf, hpf and bpf and equalizer functions. lpf and bpf have the same difference equation. Each filter receives 3000*256 arrays of the Frequency domain, filters them, and returns filtered arrays of the same size to output. First of all, LPF declares a coefficient, and since the sign of is reversed by moving oppositely, the declaration is made with – in front of it. Then apply the difference estimate according to the column and row of the array. First, when j=0, divide the case by using the if-else statement as the first input (i=0) and the rest. In the first input, the first input is placed in the output[0][0] because the previous output or previous input does not exist. After that, both y[n-1] and x[n-1] are present, so they follow the general difference equation.
참고 자료
Yonsei univ. Electrical Electronic Engineering - Week 10 Lecture
