n？ = 120;
Fs？ = 48e3
Fp？ = 8e3
Ap？ = 0.0 1;
Ast = 80
2. Obtain the maximum deviation of passband and stopband ripple in linear components.
Rp？ =( 10^(ap/20)- 1)/( 10^(ap/20)+ 1)；
rst = 10^(-ast/20)；
Extended data
Functions and characteristics of analog filter design module;
Digital filter is the core of almost all signal processing systems. The filter eliminates unnecessary artificial noise in the signal to improve its quality and prepare for further processing. Digital filters are used in various signal processing tasks, including outlier and noise removal, waveform shaping, signal smoothing and signal recovery.
MATLAB and DSP system toolbox provide rich resources for the design, analysis and implementation of filters. You can smooth signals, remove outliers, or use interactive tools such as filter design and analysis tools to design and analyze various FIR and IIR filters. You can also use filter visualizer to compare filters and use built-in functions to design and analyze analog filters.