Title :
Decimation and interpolation of narrow-band signals
Author_Institution :
Signal Process. Lab., Tampere Univ. of Technol., Finland
Abstract :
A digital filter design and optimization method for sampling rate alteration of narrow-band signal waveforms is presented, using the sinusoidal signal model. The resulting filters are linear-phase finite impulse response filters which remove the aliasing or imaging frequency components before the sampling rate is changed. Two approaches are discussed according to whether the sample rate is changed by an integer factor M or a rational factor M/L. The proposed narrow-band multirate techniques can be applied in digital measurement or control systems in industrial electronics
Keywords :
FIR filters; digital filters; filtering theory; interpolation; optimisation; signal processing; aliasing; control systems; digital filter design; digital measurement; imaging frequency components; industrial electronics; linear-phase finite impulse response filters; narrow-band multirate techniques; narrow-band signal waveforms; narrow-band signals decimation; narrow-band signals interpolation; optimization method; sampling rate alteration; sinusoidal signal model; Design methodology; Digital control; Digital filters; Finite impulse response filter; Frequency; Interpolation; Narrowband; Optimization methods; Sampling methods; Signal design;
Conference_Titel :
Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE
Print_ISBN :
0-7803-4503-7
DOI :
10.1109/IECON.1998.722849
