A Simplified Method for IIR Filter Design with Quasi-Equiripple Passband and Least-Squares Stopband

Picture Enhancement and Enlargement Algorithm on a Small Infrared Images

“…In this paper, we adopt traditional least squares [11,12] method (LSM) in our upsampling algorithm. The LSM has two stages.…”

Waveform Design for 5G and beyond Systems

“…The prototype filter determines the performance of a specific modulation waveform, thus the evaluation standard of prototype filter is primarily characterized by minimizing the stopband energy, minimizing the maximum stopband ripple, minimizing the total interference (ISI and ICI) [50,51], and so forth. Digital filters are very important in digital communications and are generally divided into two categories-infinite impulse response (IIR) filter and finite impulse response (FIR) filter [52]. Based on the fact that only linear phase FIR filters are suitable for wireless communication systems [53], the FIR filter design has been the major research topic to realize prototype filters in the literature.…”