Title :
Spectral Detection and Time Delay Estimation of a Phase Coded Signal Corrupted by Colored Observation Noise
Author :
Awais, Saima ; Malik, Mohammad Bilal
Author_Institution :
Coll. of Electr. & Mech. Eng., Nat. Univ. of Sci. & Technol., Rawalpindi
Abstract :
This paper investigates frequency domain detection of a phase coded signal for unknown arrival time and amplitude in radar applications. The signal is barker coded pulse. A sub-optimal detector, i.e. generalized likelihood ratio test (GLRT) is used which replaces the unknown parameters by their maximum likelihood estimates and then pulse embedded in colored noise is detected. The main advantage of this scheme is that the case of colored noise can be handled. The spectral detector is evaluated through Monte Carlo (MC) simulations and receiver operating characteristic (ROC) is plotted for various signal-noise scenarios.
Keywords :
Monte Carlo methods; delays; maximum likelihood estimation; phase coding; radar applications; signal detection; Monte Carlo simulations; barker coded pulse; colored observation noise; frequency domain detection; generalized likelihood ratio test; maximum likelihood estimation; phase coded signal corrupted; radar applications; receiver operating characteristic; signal-noise scenarios; spectral detection; sub-optimal detector; time delay estimation; Colored noise; Delay effects; Delay estimation; Detectors; Frequency domain analysis; Maximum likelihood detection; Phase detection; Phase estimation; Phase noise; Radar detection; Barker code; colored noise; generalized likelihood ratio test (GLRT); maximum likelihood (ML); phase coding; receiver operating characteristic (ROC);
Conference_Titel :
Networking and Communications Conference, 2008. INCC 2008. IEEE International
Conference_Location :
Lahore
Print_ISBN :
978-1-4244-2151-0
Electronic_ISBN :
978-1-4244-2152-7
DOI :
10.1109/INCC.2008.4562698
