TY - GEN
T1 - Resolution ability of fractional Fourier transform in multi-component LFM signal chirp-rate
AU - Liu, Feng
AU - Huang, Yu
AU - Tao, Ran
AU - Wang, Yue
PY - 2008
Y1 - 2008
N2 - Detecting and estimating multi-component LFM signal based on fractional Fourier transform (FrFT) becomes a hot field in recent years. In most situations, it will come across multi-component LFM signal with similarly parameters in signal processing. This means illegibility occurs in time-frequency analysis and there is a problem about resolution ability. During to this problem, when Multi-component LFM signal has only one center frequency, the expression of resolution ability in chirp-rate based on FrFT is deduced. What's more, the influence of the sampling time, sampling frequency and chirp-rate upon the resolution ability is analyzed and simulated. Finally, simulation results and analysis indicate that the resolution ability is mainly dependent on the biggest value of chirp-rate, and has the positive exponential relationship about with chirp-rate.
AB - Detecting and estimating multi-component LFM signal based on fractional Fourier transform (FrFT) becomes a hot field in recent years. In most situations, it will come across multi-component LFM signal with similarly parameters in signal processing. This means illegibility occurs in time-frequency analysis and there is a problem about resolution ability. During to this problem, when Multi-component LFM signal has only one center frequency, the expression of resolution ability in chirp-rate based on FrFT is deduced. What's more, the influence of the sampling time, sampling frequency and chirp-rate upon the resolution ability is analyzed and simulated. Finally, simulation results and analysis indicate that the resolution ability is mainly dependent on the biggest value of chirp-rate, and has the positive exponential relationship about with chirp-rate.
KW - Chirp-rate
KW - Fractional Fourier transform
KW - LFM signal
KW - Resolution ability
UR - http://www.scopus.com/inward/record.url?scp=58049093025&partnerID=8YFLogxK
U2 - 10.1109/WiCom.2008.431
DO - 10.1109/WiCom.2008.431
M3 - Conference contribution
AN - SCOPUS:58049093025
SN - 9781424421084
T3 - 2008 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2008
BT - 2008 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2008
T2 - 2008 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2008
Y2 - 12 October 2008 through 14 October 2008
ER -