Infinite Impulse Response (IIR) Filter Application
In this application, the first order IIR filter is considered. A first order IIR filter can be described by its state equation, as follows, where x denotes the sequence of input samples and y denotes the sequence of output samples:
y[n] = x[n] + c · y[n-1].
Graphically, the above equation can be represented as:
The corresponding process network is then as follows:
The output of the filter is replicated within the filter process and fed to the consumer on the one hand, and to the filter itself on the other hand.
