Title :
Total information processor for 121.5/243 MHz SARSAT signals
Author :
El-Hennawey, M.S. ; Carter, C.R.
Author_Institution :
Dept. of Electr. Eng., King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia
fDate :
7/1/1993 12:00:00 AM
Abstract :
Search and rescue satellite-aided tracking (SARSAT) has certain shortcomings which could possibly be ameliorated by employing a more extensive signal processing strategy. The approach proposed is based on partially compensating for the Doppler shift, which then permits the data processing windows to be increased significantly. Incorporating a ranking technique with the conventional fast Fourier transform (FFT) processor and implementing an autoregressive moving-average estimator provides an optimal strategy that maximizes the probability of detecting the emergency signals
Keywords :
Doppler effect; compensation; digital simulation; estimation theory; fast Fourier transforms; probability; satellite relay systems; signal detection; signal processing; tracking; 121.5 to 243 MHz; ARMA; Doppler shift; FFT; SARSAT; autoregressive moving-average estimator; data processing windows; emergency signals; fast Fourier transform; information processor; optimal strategy; probability; ranking technique; safety; search and rescue satellite aided tracking; signal processing; Aircraft; Data processing; Doppler shift; Fast Fourier transforms; Field-flow fractionation; Interference elimination; Minerals; Petroleum; Satellite ground stations; Signal processing; Table lookup;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
