Title :
Spectral correlation function in low SNR environment
Author :
Wenjie, Ma ; Shiming, Yang ; Wu, Ren ; ZhengHui, Xue ; WeiMing, Li
Author_Institution :
Dept. of Electr. Eng., Beijing Inst. of Technol., China
Abstract :
The spectral correlation function (SCF) is an efficient tool for analyzing cyclostationary signals. In a low signal-to-noise (SNR) conditions, however, the spectral lines associated with the SCF signal chip rate may be corrupted. The most general measurements of SCF are based on averaging methods to diminish the effect of noise. Here, the noise contribution is discussed and a new method for the estimation of parameters of modulated signals is brought forward.
Keywords :
Gaussian noise; correlation methods; parameter estimation; spectral analysis; SCF signal chip rate; averaging methods; cyclostationary signals; low SNR environment; modulated signal parameter estimation; modulation mode identification; spectral correlation function; spectral line corruption; white Gaussian noise; Autocorrelation; Gaussian noise; Noise measurement; Parameter estimation; Quantum cascade lasers; Radar; Signal analysis; Signal processing; Signal to noise ratio; Working environment noise;
Conference_Titel :
Radio Science Conference, 2004. Proceedings. 2004 Asia-Pacific
Print_ISBN :
0-7803-8404-0
DOI :
10.1109/APRASC.2004.1422436
