Frequency Diverse Array with Quadratic Variation In Frequency Offset

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JABBAR RASHIDI ALI; rastgar kisomi saeed; MOHSENI ARMAKI SEYED HOSSEIN; FALLAH MOHSEN

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Journal: ELECTRONIC INDUSTRIES Year:2020 | Volume:11 | Issue:1 Page(s): 39-50

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Title

Frequency Diverse Array with Quadratic Variation In Frequency Offset

Author(s)

JABBAR RASHIDI ALI | rastgar kisomi saeed | MOHSENI ARMAKI SEYED HOSSEIN | FALLAH MOHSEN | Issue Writer Certificate

Keywords

Range-Dependent Beam PatternQ1

Frequency OffsetQ1

Quadratic-FDAQ1

Frequency Diverse ArrayQ1

Abstract

It has been shown over several decades of radar research that the exploitation of diversity in a number of domains such as space, frequency, time, polarization, and, recently, waveform can provide increased agility, flexibility, reliability, and capabilities to the radar system. However this is often achieved either through efforts in system design, increased hardware complexity, or by employing additional resources. In the Frequency Diverse Array (FDA) the subsequent antenna elements are fed with stepped discrete frequencies. So a range-angle dependent radiation pattern is made possible. It is possible to apply different frequencies with different patterns to the elements of FDA to achieve different radiation pattern. In this paper, a Frequency Diverse Array with non-uniform inter-element Frequency Offset called Quadratic-FDA has been proposed, that its variation is a function of physical distance of elements from the first element. To produce the coefficient of the Frequency Offset two Frequency Offset generators has been proposed. In The first proposed method uses linear distance as a input of function and the second one uses multiples of the roots of the Chebyshev polynomial. The proposed strategy provides a non-periodic beampattern, with a maximum that can be steered in space by selecting appropriate excitation weights of the antennas. This single-maximum beampattern, in contrast to multiple-maxima beampattern of the other forms of FDA, can help to further reject range-dependent interferences, causing improved SINR and increased detectability.

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APA: Copy

JABBAR RASHIDI, ALI, rastgar kisomi, saeed, MOHSENI ARMAKI, SEYED HOSSEIN, & FALLAH, MOHSEN. (2020). Frequency Diverse Array with Quadratic Variation In Frequency Offset. ELECTRONIC INDUSTRIES, 11(1 ), 39-50. SID. https://sid.ir/paper/229568/en

Vancouver: Copy

JABBAR RASHIDI ALI, rastgar kisomi saeed, MOHSENI ARMAKI SEYED HOSSEIN, FALLAH MOHSEN. Frequency Diverse Array with Quadratic Variation In Frequency Offset. ELECTRONIC INDUSTRIES[Internet]. 2020;11(1 ):39-50. Available from: https://sid.ir/paper/229568/en

IEEE: Copy

ALI JABBAR RASHIDI, saeed rastgar kisomi, SEYED HOSSEIN MOHSENI ARMAKI, and MOHSEN FALLAH, “Frequency Diverse Array with Quadratic Variation In Frequency Offset,” ELECTRONIC INDUSTRIES, vol. 11, no. 1 , pp. 39–50, 2020, [Online]. Available: https://sid.ir/paper/229568/en

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