Upsampling matlab

1. How to do upsampling in Matlab?
2. What is upsampling and downsampling in Matlab?
3. What is upsampling used for?
4. What is upsampling method?

How to do upsampling in Matlab?

y = upsample( x , n ) increases the sample rate of x by inserting n – 1 zeros between samples. If x is a matrix, the function treats each column as a separate sequence. y = upsample( x , n , phase ) specifies the number of samples by which to offset the upsampled sequence.

What is upsampling and downsampling in Matlab?

Upsample the input data in the matrix xin by a factor of the integer p (inserting zeros) FIR filter the upsampled signal data with the impulse response sequence given in the vector or matrix h. Downsample the result by a factor of the integer q (throwing away samples)

What is upsampling used for?

The purpose of Upsampling is to manipulate a signal in order to artificially increase the sampling rate.

What is upsampling method?

Upsampling or Oversampling refers to the technique to create artificial or duplicate data points or of the minority class sample to balance the class label. There are various oversampling techniques that can be used to create artificial data points.