Infinite Impulse Response


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Infinite Impulse Response

(electronics, DSP)
A type of digital signal filter, in which every sample of output is the weighted sum of past and current samples of input, using all past samples, but the weights of past samples are an inverse function of the sample age, approaching zero for old samples.
References in periodicals archive ?
These include: temperature and voltage measurements, frequency domain characteristics of a sine-wave signal generated onboard Finite Impulse Response (FIR) and Infinite Impulse Response (IIR) digital filter selections, and DTMF tone generation using the onboard CODEC.
To facilitate development of FPGA co-processors, the DSP Development Kit, Stratix Professional Edition provides hardware evaluation versions of key DSP intellectual property, including a FIR compiler, infinite impulse response (IIR) filter compiler, and correlator, FFT, Viterbi, and Reed Solomon cores.
It has a simple user interface, and includes common DSP functions such as Finite Impulse Response (FIR), Infinite Impulse Response (IIR) filter operations and transform operations.
The Digital Filter Design Software Package simplifies the development of Finite Impulse Response (FIR) and Infinite Impulse Response (IIR) digital filters through a menu-driven and user intuitive interface.

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