Decimator

Decimator downsamples the input signal by an integer factor. Downsampling is achieved by sending only every nth input sample to the output. There are two ways of setting the degree of downsampling, either using the MULTIPLE parameter or using the OUTPUT_RATE parameter. Only one of these should be set. Using MULTIPLE directly sets the factor by which to downsample i.e. if it is set to 3 then every 3rd sample will be passed to the output. Alternatively, using OUTPUT_RATE sets the desired output rate. In this case, an integer downsampling factor will be selected automatically so that the actual output sample rate matches the desired rate as closely as possible.

Inputs	Meaning	Sample	1-D frame	2-D frame
in1	input data	Yes	Yes	Yes

Outputs	Meaning
out1	data at lower sampling rate

Parameters	Type	Default	Meaning
MULTIPLE	Integer	-	The decimation factor
OUTPUT_RATE	Float	-	The desired output rate