Equal ripple tolerance characteristics

✍ Scribed by Jacques Neirynck; Ljiljana Milić

• Publisher: John Wiley and Sons
• Year: 1976
• Tongue: English
• Weight: 345 KB
• Volume: 4
• Category: Article
• ISSN: 0098-9886
• DOI: 10.1002/cta.4490040110

✦ Synopsis

Abstract

The concept of equal ripple tolerance is introduced and justified in the particular case of the polynomial low pass filter. By comparison with the classical Chebyshev characteristic, it is shown that it is possible to improve the tolerance to element variations by a factor 2. The ultraspherical polynomial provides a closed form specification which is significantly better than the Chebyshev characteristic.