A Pre-Compensation Method for Digital-to-Analog Converter Using Minimax-Designed FIR Filters
- Resource Type
- Conference
- Authors
- Tian, Qiaoyu; Wang, Yinan; Liu, Guiqing; Liu, Xiangyu; Diao, Jietao
- Source
- 2018 IEEE 3rd International Conference on Signal and Image Processing (ICSIP) Signal and Image Processing (ICSIP), 2018 IEEE 3rd International Conference on. :484-488 Jul, 2018
- Subject
- Signal Processing and Analysis
Finite impulse response filters
Filter banks
Estimation
Frequency response
Passband
Cutoff frequency
Bandwidth
minimax design
DACs compensation
order estimation
curve fitting
- Language
The output frequency response for most DACs rolls off according to the sin(x)/x frequency-response envelope [1]. This paper derives a FIR filter which is designed in the minimax sense with the ripple constraints as the design criteria for the frequency response compensation of DACs. The filter order estimation function under the criterion gives a detailed filter design configuration method, which can effectively shorten the design time and provide an accurate resource configuration reference for the top-level system design [2]. The simulation example verifies the advantages of the compensation filter in minimax sense and shows the performance of the compensation filter and the accuracy of the order estimation function.