Title :
IFFTC-Based Procedure for Hidden Tone Detection
Author :
Liguori, Consolatina ; Paolillo, Alfredo
Author_Institution :
Univ. of Salerno, Fisciano
Abstract :
In this paper a procedure for the detection of hidden tones in the spectrum of a signal is proposed and experimentally evaluated. It is based on the "Corrected Interpolated FFT" algorithm for the estimation of spectral parameters of nonhidden tones, and on the analysis of the disagreement between measured and expected spectra in order to detect hidden tones. The design of the procedure takes advantage of experimental design techniques in the threshold evaluation
Keywords :
fast Fourier transforms; parameter estimation; signal processing; IFFTC-based procedure; corrected interpolated FFT; digital signal processing; hidden tone detection; interpolated fast Fourier transform; signal spectrum; spectral resolution; Algorithm design and analysis; Design for experiments; Digital signal processing; Fast Fourier transforms; Frequency; Parameter estimation; Performance evaluation; Signal analysis; Signal processing algorithms; Signal resolution; Digital signal processing (DSP); hidden tones; interpolated fast Fourier transform (FFT); spectral resolution;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2006.887774
