New results in broadband adaptive beamforming

S. Sivanand, M. Kaveh

Research output: Contribution to journalConference articlepeer-review


Preprocessors based on focusing broadband signals to achieve a rank-one direction vector for each broadband source are designed both in the frequency and time domains. The preprocessor is then followed by any of the frequency-independent beamforming techniques. The merits that result as a consequence are partial adaptivity due to frequency-independent weights and decoherence of coherent signals, thus combating signal cancellation. In addition, robustness against lock-direction pointing errors can be incorporated into the preprocessor design. Expressions for the desired-signal distortion in the single interference case are derived and analyzed. Simulation results confirm the utility of the focusing preprocessors.

Original languageEnglish (US)
Pages (from-to)774-778
Number of pages5
JournalConference Record - Asilomar Conference on Circuits, Systems & Computers
StatePublished - 1991
Event24th Asilomar Conference on Signals, Systems and Computers Part 2 (of 2) - Pacific Grove, CA, USA
Duration: Nov 5 1990Nov 7 1990


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