LFM Signal Time Frequency Detection Based On S-Hough Transform
Meng Niu · 2009
A new transform--S-Hough transform is proposed for multi component LFM signal. In this method, firstly multi component LFM signal is transformed by S-transform. Experiment simulation results indicate that S transform overcomes cross-terms disturbance produced by multi-component signal compared with Wigner-Ville distribution. Then each linear FM signal component is detected by Hough transform in the time-frequency plane. Experiment simulation results indicate that this method is very efficient in multi component LFM signal detection.