Decimation in matlab

1. What is decimation Matlab?
2. What is the process of decimation?
3. What is decimation in Simulink?
4. How does Matlab reduce sampling rate?

What is decimation Matlab?

Decimation reduces the original sample rate of a sequence to a lower rate. It is the opposite of interpolation. decimate lowpass filters the input to guard against aliasing and downsamples the result.

What is the process of decimation?

Decimation is the process of reducing the sampling frequency of a signal to a lower sampling frequency that differs from the original frequency by an integer value. Decimation also is known as down-sampling.

What is decimation in Simulink?

The Decimation parameter enables you to display data at every n th sample, where n is the decimation factor. The default decimation, 1, displays data at every time step. The Sample time parameter enables you to specify a sampling interval at which to display points.

How does Matlab reduce sampling rate?

y = downsample( x , n ) decreases the sample rate of x by keeping the first sample and then every n th sample after the first. If x is a matrix, the function treats each column as a separate sequence. y = downsample( x , n , phase ) specifies the number of samples by which to offset the downsampled sequence.