Downsample

Reduces the sampling frequency of the input signal by removing intermediate values.

downsample

Description

The Downsample block reduces the sampling rate of the input signal by removing intermediate values. The block treats each input element as a separate channel and resamples each such channel separately. The output sampling rate is K times lower than the input sampling rate, where K is the value of the Downsample factor parameter. The Downsample block oversamples the input by discarding K-1 values after each output value.

Ports

Input

Port_1 - input signal
vector | matrix

Input signal whose sampling rate is to be reduced.

Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool.

Support for complex numbers: Yes

Output

Port_1 - output signal
vector | matrix

Output signal with a sampling rate that is K times lower than the input sampling rate.

Data types: Float64.

Parameters

Downsample factor - downsampling factor
2 (by default) | `positive number `

An integer factor K specifying the ratio of the input sampling rate to the output sampling rate.

Initial conditions - initial value
0 (by default) | valid scalar | multiple

The initial value of the output signal. A scalar or array of the same size as the input is allowed.