Signal interpolator

Details Signal interpolator Signal interpolator

G - Physics

11

C

G11C 27/02 (2006.01) H03H 17/06 (2006.01) H04L 7/02 (2006.01)

Patent

CA 2188693

Interpolator for obtaining intermediate values between two consecutive samples of a signal, particularly applicable to high speed data acquisition systems and demodulators. It comprises delay means (T) which delay the incoming signal (X0) N times to obtain N+1 samples (X0,X1,X2,X3); data storage means (F0,F1,F2,F3) that receive each of them one of the N+1 samples (X0,X1,X2,X3) and the value of the fraction of the time interval (µ) and generate N+1 outputs (X0',X1',X2',X3'); and adding means (SUM) that adds the N+1 outputs (X0',X1',X2',X3') from the data storage means (F0,F1,F2,F3), and outputs an interpolated value (X). Each data storage means (F0,F1,F2,F3) contains a table of values, such that the output values from each of them (X0',X1',X2',X3') are a function of the input values taken in each case by the fraction of the time interval (µ) and of the value of its corresponding sample (X0,X1,X2,X3).

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