지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
In this paper, we designed Interpolation FIR(Finite Impulse Response) filter and L-bit SDM(Sigma-Delta Modulator) for small digital audio speaker, which has low power consumption and high output characteristics. In order to achieve high linearity and low distortion performance of the systems, we adopt Type Ⅰ Chevychev FIR filter which has equiripple characteristics in the pass band and proposed high efficient FIR filter structure. SDM is the most efficient modulation technique among the noise shaping techniques. In this paper, we implemented SDM using CIFB(Cascade of Intergrators, Feed-Back) which is generally used in DAC of small digital audio speakers. The proposed SDM structure can achieve high SNR, high-efficiency characteristics and low power consumption in mobile devices. Also considering manufacture of SoC(System on Chip), we performed simulation with Matlab and Verilog HDL to obtain optimal number of operational bits and verified a good experimental results.
목차
Abstract
1. 서론
2. 보간 필터(Interpolation Filter) 설계
3. Sigma-Delta Modulator(SDM) 설계
4. 시뮬레이션 결과
5. 결론
참고문헌
저자소개
참고문헌 (10)
참고문헌 신청
1. [학술대회논문] - Ryota Saito / 2008 / A Digitally Direct Driven Dynamic-type Loundspeaker / AES 124th Convention
2. [학술대회논문] - Hajime Ueno / 2006 / Digital-driven Piezoelectric Speaker using Multi-bit Delta-sigma Modulation / AES 121th Convention
3. [단행본] - Li Tan / 2008 / Finite impulse response filter design, in Digital Signal Processing : Fundamentals and Applications / Academic Press
4. [단행본] - Samuel D. Sterns / 1990 / Reconstruction Using Digital Interpolation, in Digital Signal Analysis, 2nd Ed / Prentice Hall : 80 ~ 85
5. [단행본] - Ashok Ambardar / 1999 / The Chebyshev Approximation, in Analog and Digital Signal Processing, 2nd Ed / Brooks/Cole
2. [학술대회논문] - Hajime Ueno / 2006 / Digital-driven Piezoelectric Speaker using Multi-bit Delta-sigma Modulation / AES 121th Convention
3. [단행본] - Li Tan / 2008 / Finite impulse response filter design, in Digital Signal Processing : Fundamentals and Applications / Academic Press
4. [단행본] - Samuel D. Sterns / 1990 / Reconstruction Using Digital Interpolation, in Digital Signal Analysis, 2nd Ed / Prentice Hall : 80 ~ 85
5. [단행본] - Ashok Ambardar / 1999 / The Chebyshev Approximation, in Analog and Digital Signal Processing, 2nd Ed / Brooks/Cole
이 논문의 저자 정보
이 논문과 함께 이용한 논문
근거리 무선 통신 장치를 이용한 스피커의 구현
임현서
,
최희규
,
이창호
외 5명
Proceedings of KIIT Conference
2012
.11
자기변형 구동기 기반의 도킹 스피커의 개발
오옥균
,
박해정
,
박영우
한국정밀공학회 학술발표대회 논문집
2012
.05
Reducing the Search Space for Pathfinding in Navigation Meshes by Using Visibility Tests
Hyungil Kim
,
Kyeonah Yu
,
Juntae Kim
Journal of Electrical Engineering & Technology
2011
.11
열차추진시스템에서 Switched Reluctance Motor의 속도제어를 위한 제어기 설계
김성수
,
김민석
,
이종우
전기학회논문지 P
2011
.09
차단기와 리클로져의 통신을 이용한 루프 배전계통의 보호협조 적용시 신뢰도 비교에 관한 연구
이희태
,
문종필
전기학회논문지 P
2011
.09
최근 본 자료
댓글(0)
0
UCI(KEPA) : I410-ECN-0101-2012-560-004338423