9.13 Exercises
I. Fill in the blanks with appropriate words
1. The processing of signal at different sampling rates is called .
2. The is the process of increasing the sampling rate.
3. The is the process of decreasing the sampling rate.
4. To avoid aliasing of output spectrum of decimator for decimation by D, the input spectrum is to .
5. To eliminate multiple images in output spectrum of interpolator for interpolation by I, the output spectrum is bandlimited to .
6. In sampling rate conversion by rational factor, is performed first.
7. When the sampling rate conversion factor is very large then sampling rate conversion is preferred.
8. The process of dividing a filter into a number of sub-filters is called .
9. The digital filter bank is a set of filters.
10. The banks are filter banks with complementary frequency response.