Tuan Do-Hong

Learn More
The paper presents a new method for designing a digital beamformer using a uniform linear (or planar) array. By employing a spatial interpolation process at the digital signal processing section, the number of antenna elements, and the corresponding RF modules, analog/digital (A/D) converters, etc., are significantly reduced, while still retaining the same(More)
This paper presents an extension of the wideband direction-of-arrival estimation method using frequency-domain frequency-invariant beamformers (Do-Hong et al., 2003) with an analysis of performance. An asymptotic expression for the root-mean-square error and a resolution threshold of signal-to-noise-ratio for resolving directions of sources are shown. A(More)
This letter presents an analysis of wideband direction-of-arrival (DOA) estimation for closely-spaced sources using arbitrary antenna array taking into account the effect of array model error, which is important issue in practical implementation. Based on this analysis, a new wideband DOA estimation method without array calibration is then developed to deal(More)
  • 1