Spatial aliasing for near-field sensor arrays - Electronics Letters
نویسندگان
چکیده
1 LO, T.K : 'Miniature aperture-coupled microstrip antenna of very high permittivity', Electron. Lett., 1997, 33, pp. 9-10 2 PINHAS, s., and SHTRIKMAN, s.: 'Comparison between computed and measured bandwidth of quarter-wave microstrip radiators', IEEE Trans., 1988, AP-36, (ll), pp. 1615-1616 3 WATERHOUSE, R.B : 'Small microstrip patch antenna', Electron. Lett., 1995, 31, pp. 604605 4 LUK. K.M., CHAIR, R., and LEE, K.F.: 'Small rectangular patch antenna, Electron. Lett., 1998, 34, pp. 2366-2367
منابع مشابه
Spatial Aliasing for Near eld Sensor Arrays
This paper investigates the presence of spatial aliasing due to operating a linear array in the near eld It shows that the standard half wavelength sensor spacings rule which guarantees no aliasing in the operation of far eld arrays is not su cient to prevent aliasing in the near eld This claim is justi ed by theoretical considerations and corroborated by simulation results
متن کاملSpatial Aliasing Artifacts Produced by Linear Loudspeaker Arrays used for Wave Field Synthesis
Spatial sound reproduction systems with a large number of loudspeakers are increasingly being used. Wave field synthesis is a reproduction system using a large number of densely placed loudspeakers (loudspeaker array). This implies a spatial sampling process that may lead to aliasing artifacts. This paper derives the spatial aliasing artifacts of linear loudspeaker arrays used for wave field sy...
متن کاملOn the Use of Irregularly Spaced Loudspeaker Arrays for Wave Field Synthesis, Potential Impact on Spatial Aliasing Frequency
Wave Field Synthesis (WFS) is a physical based sound reproduction technique. It relies on linear arrays of regularly spaced omnidirectional loudspeakers. A fundamental limitation of WFS is that the synthesis remains correct only up to a corner frequency referred to as spatial aliasing frequency. This paper addresses irregular spacing of loudspeaker array for WFS. Adapted driving functions are d...
متن کاملSpatial Aliasing Artifacts Produced by Linear and Circular Loudspeaker Arrays used for Wave Field Synthesis
Spatial sound reproduction systems with a high number of loudspeakers are increasingly being used. Wave field synthesis is a reproduction technique using a high number of densely placed loudspeakers (secondary sources). The underlying theory, however, assumes a continuous distribution of secondary sources. Loudspeakers placed at discrete positions imply a spatial sampling process that may lead ...
متن کاملBeamforming Arrays with Many Sensors: The Aggregate Beamformer
The aggregate beamformer is an alternative beamforming technique that uses the properties of randomly sampled signals to simplify beamforming for arrays with many elements. One advantage of the technique is the ability to exclude anti-alias filters even when signals from multiple channels are multiplexed into a single analog to digital converter. Another is the ability to perform base-band proc...
متن کامل