Title :
All-digital spectrum analyser based on a parallel algorithm
Author :
Soudris, D. ; Birbas, M. ; Koufopavlou, O. ; Metafas, D. ; Nikolaidis, S. ; Goutis, C. ; Theodoridis, S.
Author_Institution :
Dept. of Electr. Eng., Patras Univ., Greece
Abstract :
The architecture of an all-digital spectrum analyzer is presented. It is based on a maximum entropy algorithm which is characterized by the VLSI features of the parallelism, modularity, and locality. The analyzer consists of five functional blocks: (a) an A/D converter, (b) a correlator, (c) a linear array for computation of the AR filter coefficients, (d) a special-purpose FFT for computing the spectrum from the AR coefficients, and (e) a decibel evaluator. Fully parametric design of all blocks is given, so that the optimal time-hardware trade-off is achieved
Keywords :
VLSI; analogue-digital conversion; computerised instrumentation; correlators; fast Fourier transforms; parallel algorithms; spectral analysers; A/D converter; AR filter coefficients; FFT; VLSI; all-digital spectrum analyzer; correlator; decibel evaluator; linear array; locality; maximum entropy algorithm; modularity; optimal time-hardware trade-off; parallel algorithm; parallelism; Algorithm design and analysis; Computer architecture; Concurrent computing; Correlators; Entropy; Laboratories; Nonlinear filters; Parallel algorithms; Parallel processing; Partitioning algorithms;
Conference_Titel :
Electrotechnical Conference, 1991. Proceedings., 6th Mediterranean
Conference_Location :
LJubljana
Print_ISBN :
0-87942-655-1
DOI :
10.1109/MELCON.1991.161863
