Title :
Modified polyphase filter structure for computing interpolated data as successive differential corrections
Author :
Harris, Fred ; McKnight, Bill
Author_Institution :
Dept. of Electr. & Comput. Eng., San Diego State Univ., CA, USA
Abstract :
A differential correction interpolating scheme is developed which computes successive first differences between adjacent output samples. This scheme obtains a specified system performance using filter coefficients with a reduced number of bits and consequently accommodates multipliers with reduced accuracy. This technique is easily extended to higher-order difference corrections to achieve further bit reductions
Keywords :
digital arithmetic; digital filters; interpolation; signal processing equipment; FIR filter; filter coefficients; higher-order difference corrections; interpolated data; modified polyphase filter; successive differential corrections; Bandwidth; Code standards; Convolution; Data engineering; Filter bank; Finite impulse response filter; Oceans; Prototypes; Sampling methods; System performance;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176115
