Title :
New approach to adaptive line enhancer using autocorrelation function for processing SARSAT signals
Author :
Dessouky, M.I.M. ; Hadhoud, M.M. ; El-Samie, F. E Abd
Author_Institution :
Fac. of Electron. Eng., Menoufia Univ., Egypt
Abstract :
This paper develops a new approach to the adaptive line enhancement (ALE) of the emergency locator transmitter (ELT) signal where the input signal to the ALE is replaced by its autocorrelation function. This approach is related to signal processing using higher order statistics (HOS). The paper also compares the results of using the new approach with other different used methods. The first method uses the signal xk as an input to the ALE, and the second method uses xk2 as the input to the ALE. The results illustrate the superiority of the proposed method over the other two methods
Keywords :
Gaussian noise; IIR filters; adaptive filters; adaptive signal processing; correlation methods; emergency services; filtering theory; higher order statistics; poles and zeros; radar signal processing; radar transmitters; radio direction-finding; search radar; spaceborne radar; synthetic aperture radar; white noise; HOS; IIR filters; IIR-ALE structures; SARSAT signal processing; adaptive filters; adaptive line enhancer; autocorrelation function; emergency locator transmitter signal; fixed pole radius; frequency error; higher order statistics; input signal; variable pole radius; white Gaussian noise; Adaptive filters; Autocorrelation; Finite impulse response filter; Frequency; IIR filters; Line enhancers; Pulse modulation; RF signals; Signal detection; Signal processing;
Conference_Titel :
Radio Science Conference, 2000. 17th NRSC '2000. Seventeenth National
Conference_Location :
Minufiya
Print_ISBN :
977-5031-64-8
DOI :
10.1109/NRSC.2000.838945
