A Signal Subspace Method For Interference Cancellation

Benjamin Friedlander

doi:10.1117/12.942017

21 January 1988 A Signal Subspace Method For Interference Cancellation

Benjamin Friedlander

Proceedings Volume 0826, Advanced Algorithms and Architectures for Signal Processing II; (1988) https://doi.org/10.1117/12.942017
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

An interference cancellation technique that combines a signal subspace approach with adaptive adjustment of the weight vector is derived. The weight vector is constrained to lie in a signal subspace computed by eigendecomposition of the covariance matrix of the array outputs. The weight vector is rotated to maximize the output signal-to-interference ratio. The technique does not require array calibration as in other subspace methods. The proposed technique applies to receiver arrays for digital communication signals. The case of a BPSK signal modulating an AM transmitter is analyzed in some detail. Numerical examples illustrating the behavior of the algorithm are provided.

Citation Download Citation

Benjamin Friedlander "A Signal Subspace Method For Interference Cancellation", Proc. SPIE 0826, Advanced Algorithms and Architectures for Signal Processing II, (21 January 1988); https://doi.org/10.1117/12.942017

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