Performance of a narrowband interference canceller with an adjustable center weight

TitlePerformance of a narrowband interference canceller with an adjustable center weight
Publication TypeConference Paper
Year of Publication1991
AuthorsHasan, M. A., J. C. Lee, and V. K. Bhargava
Conference NameCommunications, Computers and Signal Processing, 1991., IEEE Pacific Rim Conference on
Pagination669 -672 vol.2
Date Publishedmay.
Keywordsadaptive interference canceller, adaptive systems, additive white Gaussian noise, adjustable center weight, binary phase shift keying, BPSK, data communication systems, data transmission systems, filtering and prediction theory, interference rejection, interference suppression, jamming, linear prediction filtering, narrowband interference canceller, spread spectrum communication, spread-spectrum modulation, strong jamming signals, white noise

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


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