Title :
Analysis of some methods for maintaining accuracy in implementation of FFT on fixed point DSP
Author :
Lukac, Zeljko ; Temerinac, Miodrag
Author_Institution :
Fac. of Tech. Sci., Novi Sad Univ., Serbia
Abstract :
This paper presents some methods for maintaining accuracy in implementation of fast Fourier transform on fixed point DSPs and analysis of their performance. Methods analysed in this paper differs by the way how overflow of mathematical operation results (complex addition and complex multiplication) is prevented. Depending of capabilities of specific fixed point DSP suitable method can be chosen.
Keywords :
digital signal processing chips; fast Fourier transforms; FFT; complex addition; complex multiplication; fast Fourier transform; fixed point DSP; mathematical operation results; Digital signal processing; Digital signal processors; Digital video broadcasting; Fast Fourier transforms; Filter bank; Performance analysis; Quantization; Signal processing algorithms; Signal resolution; Spectral analysis; Accuracy; DSP; Fast Fourier Transform;
Conference_Titel :
Telecommunications in Modern Satellite, Cable and Broadcasting Services, 2005. 7th International Conference on
Print_ISBN :
0-7803-9164-0
DOI :
10.1109/TELSKS.2005.1572089
