Blind beamforming for suppression of instantaneously narrowband signals in DS/SS communications using subspace projection techniques

Yimin Zhang; Moeness G. Amin

doi:10.1117/12.394084

26 July 2000 Blind beamforming for suppression of instantaneously narrowband signals in DS/SS communications using subspace projection techniques

Yimin Zhang, Moeness G. Amin

Author Affiliations +

Proceedings Volume 4045, Digital Wireless Communication II; (2000) https://doi.org/10.1117/12.394084
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

This paper proposes a novel blind beamforming method for interference mitigation in direct-sequence spread-spectrum (DS/SS) communications based on subspace projection. Instantaneously narrowband interference signals are considered. The interference signals are highly localized in the time-frequency domain, and their characteristics are different from those of the DS/SS signal. The instantaneous frequencies of the nonstationary interference signals are estimated from the time-frequency domain and used in the temporal domain for interference nulling. We derive the receiver SNRs, which shows improved performance in strong interference environments.

Citation Download Citation

Yimin Zhang and Moeness G. Amin "Blind beamforming for suppression of instantaneously narrowband signals in DS/SS communications using subspace projection techniques", Proc. SPIE 4045, Digital Wireless Communication II, (26 July 2000); https://doi.org/10.1117/12.394084

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