Howtosignalprocessing
- What is special about Chebyshev filter?
- What are the 2 types of Chebyshev filter *?
- Which filter is better Butterworth or Chebyshev?
- How does Chebyshev filter work?
What is special about Chebyshev filter?
The primary attribute of Chebyshev filters is their speed, typically more than an order of magnitude faster than the windowed-sinc. This is because they are carried out by recursion rather than convolution. The design of these filters is based on a mathematical technique called the z-transform, discussed in Chapter 33.
What are the 2 types of Chebyshev filter *?
the type I Chebyshev filter has ripple in the pass band and a flat stop band, type II is the opposite with a flat pass band and ripple in the stop band.
Which filter is better Butterworth or Chebyshev?
Butterworth filter has a poor roll-off rate. On the other hand Chebyshev has a better (steeper) roll-off rate because the ripple increases.
How does Chebyshev filter work?
Chebyshev filters are nothing but analog or digital filters. These filters have a steeper roll off & type-1 filter (more pass band ripple) or type-2 filter (stop band ripple) than Butterworth filters. The property of this filter is, it reduces the error between the characteristic of the actual and idealized filter.
