Title :
Parameters estimation of LFM signal based on fractional order cross spectrum
Author :
Kaihui Ding ; Qun Ding ; Run Zhe Lan
Author_Institution :
Coll. of Electron Eng., Heilongjiang Univ., Harbin, China
Abstract :
To attain fast and accurate parameters estimation of LFM signal with low SNR, a novel estimation method is presented. In this method, LFM is received with dual channel preamplifier so that noises in LFM signals are uncorrelated, parameters are estimated by using modulus of received LFM signals fractional order cross spectrum and cubic splines interpolation. Numerical simulation shows that the presented method is with good noise immunity, high precision of parameters estimation.
Keywords :
frequency modulation; interpolation; parameter estimation; signal processing; splines (mathematics); LFM signal; cubic splines interpolation; dual channel preamplifier; fractional order cross spectrum; linear frequency modulation; parameters estimation; signal processing; Correlation; Educational institutions; Estimation; Fourier transforms; Frequency modulation; Interpolation; Parameter estimation; LFM signal; cubic splines interpolation; fractional order cross spectrum; parameters estimation;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6022981
