Signal processing system and method for enhanced cascaded integr

Details Signal processing system and method for enhanced cascaded integr Signal processing system and method for enhanced cascaded integr

1996-11-20

1999-03-09

Trammell, James P.

Boots, shoes, and leggings

36472411, 36472403, 3647241, 375350, G06F 738

Patent

active

058809732

ABSTRACT:
A signal processing system and method for stabilizing cascaded integrator-comb (CIC) interpolation filters. The signal processing system includes an overflow detection circuit and reset circuitry. The overflow detection circuit monitors the output of the CIC interpolation filter for an overflow condition which is indicative of filter instability. When an overflow condition is detected, the reset circuitry automatically resets the filter, thereby eliminating the instability.

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Hogenauer, E.B., "An Economical Class of Digital Filters for Decimation and Interpolation," IEEE Trans. ASSP-29:2, Apr. 1981, pp. 155-162.

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