Detailed Description

An infinite impulse response (IIR) low-pass filter operator.

This CDP operator can be used to limit (truncate) input signal using 1st order IIR filter.

Properties

When operator is used inside a signal its default input is automatically tied to signal's InternalValue or previous operator's output. Its default output is automatically tied to next operator's input or to signal's Value. See also CDP Operator Usage In CDP Signals.

Example

Below is an example plot of 1Hz Sine signal (cyan) and the same signal with IIRFilter operator with property f3dB=1 applied (orange):

Actual Processing Code of the IIRFilter

unsigned int IIRFilter<T>::Process()
{
  if (d->reset)
    Init();
  m_output = d->filter.Calculate((T)m_input);
  return STATUS_OK;
}