Title :
Frequency independent sinusoidal suppression using median filters
Author_Institution :
Dept. of Electr. Eng., Univ. of Central Florida, Orlando, FL, USA
Abstract :
The author proposes the use of a modified median filter operating in the frequency domain for the detection and suppression of narrowband signals of sufficient power, without regard to their center frequency, bandwidth, or peak power. This approach performs better than traditional linear filters (such as notch filters), and it offers several other significant advantages over similar techniques that have been used so far. A primary application of the approach is antijamming protection of direct-sequence spread-spectrum systems
Keywords :
filtering and prediction theory; interference suppression; signal detection; antijamming protection; direct-sequence spread-spectrum systems; frequency domain; frequency independent sinusoidal suppression; modified median filter; narrowband signal detection; Band pass filters; Fourier transforms; Frequency domain analysis; Jamming; Narrowband; Nonlinear filters; Signal processing; Signal processing algorithms; Surface acoustic waves; Very large scale integration;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150777
