Title :
Performance of a narrowband interference canceller with an adjustable center weight
Author :
Hasan, M.A. ; Lee, J.C. ; Bhargava, V.K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
In the presence of strong jamming signals, the use of interference cancellers with spread-spectrum modulation has proved to be effective in providing a sufficient degree of interference rejection capability in data transmission systems. An adaptive interference canceller with an adjustable center weight is proposed to improve the performance of the conventional canceller. The input signal of the canceller is assumed to consist of the data, interference, and additive white Gaussian noise. The results obtained can readily be applied to data transmission systems such as normal binary phase shift keying (BPSK) and direct-sequence spread-spectrum BPSK modems. The performance of the interference canceller is shown to be better than the conventional canceller by analysis and computer simulations
Keywords :
adaptive systems; data communication systems; filtering and prediction theory; interference suppression; jamming; spread spectrum communication; white noise; BPSK; adaptive interference canceller; additive white Gaussian noise; adjustable center weight; binary phase shift keying; data transmission systems; interference rejection; linear prediction filtering; narrowband interference canceller; spread-spectrum modulation; strong jamming signals; Adaptive systems; Additive white noise; Binary phase shift keying; Data communication; Interference cancellation; Jamming; Modems; Narrowband; Performance analysis; Spread spectrum communication;
Conference_Titel :
Communications, Computers and Signal Processing, 1991., IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-87942-638-1
DOI :
10.1109/PACRIM.1991.160828
