TY - JOUR
T1 - Analysis of the resolution of the linear frequency modulated signal based on the fractional Fourier transform
AU - Zhang, Nan
AU - Tao, Ran
AU - Shan, Tao
AU - Wang, Yue
PY - 2007/12
Y1 - 2007/12
N2 - Fractional Fourier transform is one of the most effective tools to analyze the linear frequency modulated (LFM) signal. We focus on the resolution performances of LFM signal in the fractional Fourier domain (FRFD) and the order of FRFT, and the influence of the order error of FRFT on output signal-to-noise-ratio (SNR). The relationships of signal duration and chirp rate with the FRFD resolution, with the order resolution and with the SNR loss are obtained respectively. In detection and parameter estimation of the LFM signal based on the FRFT, this research can provide some theoretical help for resolution analysis and the order step selection.
AB - Fractional Fourier transform is one of the most effective tools to analyze the linear frequency modulated (LFM) signal. We focus on the resolution performances of LFM signal in the fractional Fourier domain (FRFD) and the order of FRFT, and the influence of the order error of FRFT on output signal-to-noise-ratio (SNR). The relationships of signal duration and chirp rate with the FRFD resolution, with the order resolution and with the SNR loss are obtained respectively. In detection and parameter estimation of the LFM signal based on the FRFT, this research can provide some theoretical help for resolution analysis and the order step selection.
KW - Fractional Fourier transform
KW - Linear frequency modulated signal detection
KW - Order step selection
KW - Resolution
KW - Signal-to-noise-ratio loss
UR - http://www.scopus.com/inward/record.url?scp=44849131974&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:44849131974
SN - 0372-2112
VL - 36
SP - 8
EP - 13
JO - Tien Tzu Hsueh Pao/Acta Electronica Sinica
JF - Tien Tzu Hsueh Pao/Acta Electronica Sinica
IS - SUPPL. 2
ER -