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Adaptive Filtering (adapt)

The ADALINE network, much like the perceptron, can only solve linearly separable problems. Nevertheless, the ADALINE has been and is today one of the most widely used neural networks found in practical applications. Adaptive filtering is one of its major application areas.

Tapped Delay Line

We need a new component, the tapped delay line, to make full use of the ADALINE network. Such a delay line is shown below. There the input signal enters from the left, and passes through N-1 delays. The output of the tapped delay line (TDL) is an N-dimensional vector, made up of the input signal at the current time, the previous input signal, etc.


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