Partially adaptive broadband beamforming with a subband selective tranformation matrix

Wei Liu, S. Weiss, L. Hanzo

Research output: Contribution to conferencePaperpeer-review

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A partially adaptive generalized sidelobe canceller (GSC) with a novel spatially/spectrally subband-selective transformation matrix is proposed. The row vectors of this matrix constitute a series of bandpass filters, which separate the blocking matrix outputs into components of different DOAs and frequencies. This results in bandlimited spectra of its outputs, which is further exploited by subband decomposition and discarding the low-pass subbands appropriately prior to running independent unconstrained adaptive filters in subbands. By these steps the computational complexity of the system is greatly reduced. Additionally, a faster convergence speed is achieved by joint spatial and spectral decorrelation.
Original languageEnglish
Number of pages5
Publication statusPublished - 2002
EventIEEE Sensor Array and Multichannel Signal Processing Workshop - Rosslyn, Virginia, United States
Duration: 4 Aug 20026 Aug 2002


WorkshopIEEE Sensor Array and Multichannel Signal Processing Workshop
Abbreviated titleSAM 2002
Country/TerritoryUnited States
CityRosslyn, Virginia


  • adaptive arrays
  • band pass filters
  • adaptive filters
  • array signal processing

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