A Triad of Cardioid Sensors in Orthogonal Orientation and Spatial Collocation—Its Spatial-Matched-Filter-Type Beam-Pattern

@article{Wong2018ATO,
  title={A Triad of Cardioid Sensors in Orthogonal Orientation and Spatial Collocation—Its Spatial-Matched-Filter-Type Beam-Pattern},
  author={Kainam Thomas Wong and Chibuzo Joseph Nnonyelu and Yue Ivan Wu},
  journal={IEEE Transactions on Signal Processing},
  year={2018},
  volume={66},
  pages={895-906}
}
This paper proposes a new configuration of acoustic sensors—the collocation of three cardioid sensors in perpendicular orientation, in order to increase the mainlobe-to-sidelobe height ratio (possibly to <inline-formula> <tex-math notation="LaTeX">$\infty$</tex-math></inline-formula>). This paper will analyze such a proposed triad's “spatial matched filter” beam-pattern that is independent of the frequency/spectrum of the incident signals. Specifically, this paper will analytically derive the… 
An array of directional sensors (cardioid sensors or figure-8 sensors), diversely orientated but spatially collocated : their beam-patterns
This dissertation contains four related investigations: 1. A Triad of Cardioid Sensors in Orthogonal Orientation and Spatial Collocation – Its Spatial-Matched-Filter-Type Beam-Pattern: This work
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Close-form eigen-based signal-processing algorithms for azimuth-elevation direction finding are developed and the proposed direction-of-arrival estimators' efficacy and closeness to the respective Cramér-Rao lower bounds are verified.
Aperture Maximization with Half-Wavelength Spacing, via a 2-Circle Concentric Array Geometry that is Uniform but Sparse
This paper proposes a new sensor-array geometry (the 2-circle concentric array geometry), that maximizes the array's spatial aperture mainly for bivariate azimuth-polar resolution of

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