Howtosignalprocessing
- What are the advantages of upsampling?
- Which is better upsampling or downsampling?
- What is the purpose of upsampling?
- What is the effect of upsampling in the frequency domain?
What are the advantages of upsampling?
Converting a digital (sampled) signal to a continuous analogue waveform requires interpolation to produce the values between sample points. Doing part of this interpolation digitally (upsampling) simplifies the analogue circuitry and gives better results. That's all there is to it.
Which is better upsampling or downsampling?
Downsampling, which is also sometimes called decimation, reduces the sampling rate. Upsampling, or interpolation, increases the sampling rate. Before using these techniques you will need to be aware of the following.
What is the purpose of upsampling?
The purpose of Upsampling is to manipulate a signal in order to artificially increase the sampling rate.
What is the effect of upsampling in the frequency domain?
Upsampling adds to the original signal undesired spectral images which are centered on multiples of the original sampling rate. In Frequency domain , Upsampling means the padding of zeros at the last of max frequency components on all sides of the signal.
