Design lowpass FIR filters. Many of the concepts presented here can be extended to other responses such as highpass, bandpass, etc.
Design arbitrary group delay filters using the fdesign.arbgrpdelay filter designer. This designer uses a least-Pth constrained optimization algorithm to design allpass IIR filters
Design FIR halfband filters. Halfband filters are widely used in multirate signal processing applications when interpolating/decimating by a factor of two. Halfband filters are
Design classic IIR filters. The initial focus is on the situation for which the critical design parameter is the cutoff frequency at which the filter's power decays to half (-3 dB) the nominal
Design lowpass FIR Nyquist filters. It also compares these filters with raised cosine and square root raised cosine filters. These filters are widely used in pulse-shaping for digital
Design complex bandpass filters. Complex bandpass filters are used in many applications from IF subsampling digital down converters to vestigial sideband modulation schemes for analog
Design filters for decimation and interpolation. Typically lowpass filters are used for decimation and for interpolation. When decimating, lowpass filters are used to reduce the
Design peaking and notching filters. Filters that peak or notch at a certain frequency are useful to retain or eliminate a particular frequency component of a signal. The design parameters
Design least Pth-norm FIR filters with the FIRLPNORM function. This function uses a least-Pth unconstrained optimization algorithm to design FIR filters with arbitrary magnitude
Design filters given customized magnitude and phase specifications. Custom magnitude and phase design specifications are used for the equalization of magnitude and phase distortions
Design multistage decimators and interpolators. The example Efficient Narrow Transition-Band FIR Filter Design shows how to apply the IFIR and the MULTISTAGE approaches to single-rate
Design optimal IIR filters with arbitrary magnitude response using the least-Pth unconstrained optimization algorithm.
Design filters with arbitrary magnitude response. The family of filter design (FDESIGN) objects allow for the design of filters with various types of responses. Among these types, the
Use some of the key features of the generalized Remez FIR filter design function. This function provides all the functionality included in FIRPM plus many additional features showcased
Design efficient FIR filters with very narrow transition-bands using multistage techniques. The techniques can be extended to the design of multirate filters. See Multistage Design Of
Minimize the number coefficients, by designing minimum-phase or minimum-order filters.
Design lowpass filters with stopbands that are not equiripple.
Control the filter order, passband ripple, stopband attenuation, and transition region width of a lowpass FIR filter.