Spatial Aliasing for Near eld Sensor Arrays
نویسندگان
چکیده
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
منابع مشابه
Theory and design of broadband sensor arrays with frequency invariant far eld beam patterns
The theory and design of a broadband array of sensors with a frequency invariant far eld beam pattern over an arbitrarily wide design bandwidth is presented The frequency invariant beam pattern property is de ned in terms of a continuously distributed sensor and the problem of designing a practical sensor array is then treated as an approximation to this continuous sensor using a discrete set o...
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