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what will be feedforward difference equation

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moonnightingale

moonnightingale

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what will be feed forward diff equation for 4th order FIR having 8 bit tab-coefficienta 10,20,30,25 and 20???
 

Feed-forward difference equation is the numerator of the transfer function. So feed-forward difference equation for 4th order FIR is given by:
2_1293561257.jpg


The output is a sum of five products, you have 5 coefficients (10, 20, 30, 25 and 20), substitute them in the difference equation.

Source: http://www.atmel.com/dyn/resources/prod_documents/doc2527.pdf
 

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