Title :
A new signal detection with unknown doppler in an unknown background using spectrogram
Author :
Odabaee, Maryam ; Ghorbani, Ayaz ; Amindavar, Hamidreza
Author_Institution :
Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran
Abstract :
The current methods of detecting targets operate based on interference, clutter, noise, parameters and/or on signal Doppler specifications. There is no optimum detector for a general environment in unknown Doppler shifts. In this paper based on the combination of tolerance interval technique and time-frequency signal analysis, a new method is presented to introduce a new detector. The method is non-parametric, signal is analyzed in time-frequency domain by its spectrogram and the time interval of signal presence is determined. Finally, the adaptive thresholding is utilized and signal detection is fulfilled.
Keywords :
Doppler radar; Doppler shift; adaptive signal detection; nonparametric statistics; radar detection; radar tracking; target tracking; time-frequency analysis; adaptive thresholding; nonparametric method; radar target detection; signal detection; spectrogram; time-frequency signal analysis; tolerance interval technique; unknown Doppler shifts; Background noise; Clutter; Detectors; Doppler shift; Interference; Radar detection; Signal detection; Spectrogram; Testing; Working environment noise; CFAR; Doppler; GLRT detector; OS detector; Spectrogram; Tolerance interval;
Conference_Titel :
Telecommunication Networks and Applications Conference, 2007. ATNAC 2007. Australasian
Conference_Location :
Christchurch
Print_ISBN :
978-1-4244-1557-1
Electronic_ISBN :
978-1-4244-1558-8
DOI :
10.1109/ATNAC.2007.4665269
