Equalization for antenna-pattern measurements: Established technique - New application

Leather, P.S.H.; Parsons, D.

doi:10.1109/map.2003.1203134

Cited by 20 publications

(12 citation statements)

References 7 publications

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“…The tap delay line equalizer is a filter that is usually used to provide equalization for a signal [2]. However this use is different and based on signal matching where the equalizer is used to match the transmitted signal to a received signal.…”

Section: Tap Delay Line Equalizermentioning

confidence: 99%

Delay time detection for ranging applications using a tap delay line equalizer

Cheeseman

Huang

2006

2006 First European Conference on Antennas and Propagation

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This paper covers the use of a tap delay line equalizer run as a matching filter to improve delay detection. Comparisons are drawn between frequency and phase modulated pulses over several de-modulation schemes to determine delay times. Use of the equalizer is shown to offer improved range resolution or signal separation in an idealised case and superior imaging performance over a differentiated Gaussian pulse in a two target simulation.

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Section: Tap Delay Line Equalizermentioning

confidence: 99%

Delay time detection for ranging applications using a tap delay line equalizer

Cheeseman

Huang

2006

2006 First European Conference on Antennas and Propagation

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“…B. Fourestie et al modeled the measured signal using the Matrix Pencil method and detected resonances in anechoic chambers. P. S. H. Leather and D. Parson described a method to determine an angle by angle equalization of the non-anechoic environment where an antenna is to be tested [5]. But there was neither detailed mathematical formulation supporting the theory nor examples.…”

Section: Introductionmentioning

confidence: 99%

Free Space Radiation Pattern Reconstruction from Non-Anechoic Measurements Using an Impulse Response of the Environment

Koh

Sarkar

et al. 2012

IEEE Trans. Antennas Propagat.

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The objective of this paper is to investigate a methodology, which can extract approximate results for the free space radiation pattern from non-anechoic measurements. Using an impulse response both in the time and angular domains of the nonanechoic measurement environment, the free space pattern of the device under test is estimated. The purpose of this paper is, as opposed to what has been stated in some papers, to show that a deconvolution based technique is feasible for reflection compensation in non-anechoic measurements. The proposed method can also be applied at a single frequency as illustrated in this paper. Simulated data has been used to illustrate the applicability of this new technique and its improved performance over the conventional FFTbased methods.Index Terms-Angular domain impulse response, antenna measurement, non-anechoic measurement, pattern reconstruction.

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“…However, some imperfections do always exist, and different methodologies have been developed to improve data measured in nonideal anechoic conditions [1]- [4]. Furthermore, several signal processing techniques have been proposed to eliminate the undesired contributions existing in nonanechoic or reverberant chambers [5]- [7].…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of Antenna Radiation Patterns From Phaseless Measurements in Nonanechoic Chambers

Loredo

León

Ayestaran

et al. 2011

Antennas Wirel. Propag. Lett.

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Antennas are generally measured in anechoic chambers, where walls are covered with appropriate absorbing materials so that reflections are minimized. However, different methodologies have been proposed to process the data measured in nonanechoic conditions with the aim of reconstructing the free-space antenna radiation pattern. The objective of this communication is to evaluate the conditions under which those methods can be extended to the case where only amplitude data is available and phase is estimated using the Hilbert transform. IndexTerms-Amplitude-only measurements, antenna measurements, Hilbert transform, minimum phase systems, pattern reconstruction.

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Equalization for antenna-pattern measurements: Established technique - New application

Cited by 20 publications

References 7 publications

Delay time detection for ranging applications using a tap delay line equalizer

Delay time detection for ranging applications using a tap delay line equalizer

Free Space Radiation Pattern Reconstruction from Non-Anechoic Measurements Using an Impulse Response of the Environment

Reconstruction of Antenna Radiation Patterns From Phaseless Measurements in Nonanechoic Chambers

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