Range-Angle Dependent Transmit Beampattern Synthesis for Linear Frequency Diverse Arrays

Phased-array is widely used in communication and radar systems, but the beam steering is fixed in an angle for all the ranges. In this paper, we propose a range-angle dependent beampattern synthesis scheme for linear frequency diverse array (FDA) using the discrete spheroidal sequence, with an aim t...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2013-08, Vol.61 (8), p.4073-4081
Main Author: WANG, Wen-Qin
Format: Article
Language:English
Subjects:
Antennas
Applied sciences
Array signal processing
Beampattern synthesis
Exact sciences and technology
frequency diverse array (FDA)
Frequency diversity
Interference
Phased arrays
Radar
Radiocommunications
Radiolocalization and radionavigation
range-angle dependent
range-dependent beamforming
Signal to noise ratio
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
transmit beamforming
Vectors
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Description
Summary:Phased-array is widely used in communication and radar systems, but the beam steering is fixed in an angle for all the ranges. In this paper, we propose a range-angle dependent beampattern synthesis scheme for linear frequency diverse array (FDA) using the discrete spheroidal sequence, with an aim to focus the transmit energy in a desired two-dimensional spatial section. Different from conventional phased-arrays, FDA employs a small frequency increment, compared to the carrier frequency across the array elements. The range-angle dependent beampattern synthesis method allows the FDA to transmit energy over a desired range or angle sector. This provides a potential to suppress range-dependent clutter and interference, which is not accessible for conventional phased-arrays. The system performance of the proposed FDA is evaluated by the output signal-to-interference-plus-noise ratio (SINR). The effectiveness is verified by comprehensive numerical simulation results.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2013.2260515