87.1 Digital Filter Specifications Specifications are often given in terms of loss function G(o)=-20logoIG(ejo)lin d B Peak passband ripple O1=2090(1-8n)dB Minimum stopband attenuation 03=-20log0(、)dB§7.1 Digital Filter Specifications • Specifications are often given in terms of loss function G(ω)=-20log10 |G(ejω)| in dB • Peak passband ripple αp= -20log10 (1- δp ) dB • Minimum stopband attenuation αs= -20log10 (δs ) dB