Howtosignalprocessing
- Which filter is used in decimation and interpolation?
- Is resampling the same as interpolation?
- What is interpolation and decimation filters and why we need it?
- What is a decimation filter?
Which filter is used in decimation and interpolation?
11.2 Polyphase Filter Structure and Implementation. Due to the nature of the decimation and interpolation processes, polyphase filter structures can be developed to efficiently implement the decimation and interpolation filters (using fewer number of multiplications and additions).
Is resampling the same as interpolation?
Resampling is used to either increase the sample rate (make the image larger) or decrease it (make the image smaller). Interpolation is the process of calculating values between sample points. So, if you resample an image you can use interpolation to do it.
What is interpolation and decimation filters and why we need it?
Decimation and interpolation are the two basic building blocks in the multirate digital signal processing systems. The decimator is utilized to decrease the sampling rate and interpolator to increase the sampling rate.
What is a decimation filter?
Decimation filters help you remove the excess bandwidth and reduce the sampling frequency of the signal. Decimation filters also help you reduce the computational resources required for processing and storing the signal.
