Howtosignalprocessing
- What is difference between interpolation and decimation?
- What is interpolation in digital signal processing?
- What is the difference between decimation and downsampling?
- Is decimation and interpolation linear?
What is difference between interpolation and decimation?
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 interpolation in digital signal processing?
Interpolation is the process of increasing the sampling frequency of a signal to a higher sampling frequency that differs from the original frequency by an integer value. Interpolation also is known as up-sampling.
What is the difference between decimation and downsampling?
Loosely speaking, “decimation” is the process of reducing the sampling rate. In practice, this usually implies lowpass-filtering a signal, then throwing away some of its samples. “Downsampling” is a more specific term which refers to just the process of throwing away samples, without the lowpass filtering operation.
Is decimation and interpolation linear?
From a digital signal processing point of view, both the pro- cesses of interpolation and decimation can be well formulated in terms of linear filtering operations.
