Application of Frequency Diverse Arrays to Synthetic Aperture Radar Imaging

Farooq, J.; Temple, Michael A.; Saville, Michael A.

doi:10.1109/iceaa.2007.4387334

Cited by 75 publications

(41 citation statements)

References 3 publications

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“…Furthermore, the multipath characteristics of the FDA over a ground plane are analyzed in [50]. Additional work was reported in [51]- [54] to exploit the benefit of applying the FDA for synthetic aperture radar (SAR) high-resolution imaging.…”

Section: Introductionmentioning

confidence: 98%

Frequency Diverse Array Antenna: New Opportunities

Wang

2015

IEEE Antennas Propag. Mag.

216

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Phased-array antennas are known for their capability to electronically steer a beam with high effectiveness, but beam steering is fixed in an angle for all range cells. This paper reviews frequency diverse array (FDA) antennas. Different from a phased array, an FDA uses a small frequency increment, as compared with the carrier frequency, across array elements. The use of a frequency increment generates an array factor that is a function of the angle, the time, and the range, allowing the FDA antenna to transmit the energy over the desired range and angle. In addition to analyzing FDA factor characteristics, this paper investigates FDA potential applications in range-dependent energy control and technical challenges in system implementation, with an aim to call for further investigations on the FDA.

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Section: Introductionmentioning

confidence: 98%

Frequency Diverse Array Antenna: New Opportunities

Wang

2015

IEEE Antennas Propag. Mag.

216

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“…Given the range varying illumination pattern, potential benefits of using FDA for synthetic aperture radar (SAR) imaging are investigated in [138]- [140]. Exploiting the time and space properties of FDA radiation pattern to improve SAR cross-range resolution and range resolution was analyzed in [141].…”

Section: Tma/fda Based Conceptual Systemsmentioning

confidence: 99%

An Overview on Time/Frequency Modulated Array Processing

Wang

Farina³

2017

IEEE J. Sel. Top. Signal Process.

197

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Time and frequency modulated arrays have numerous application areas including radar, navigation and communications. Specifically, a time modulated array can create a beampattern with low sidelobes via connecting and disconnecting the antenna elements from the feed network, while the frequency modulated frequency diverse array produces a range-dependent pattern. In this paper, we aim to introduce these advanced arrays to the signal processing community so that more investigations in terms of theory, methods and applications, can be facilitated. The research progress of time/frequency modulated array studies is reviewed and the most recent advances are discussed. Moreover, potential applications in radar and communications are presented, along with their technical challenges, especially in signal processing aspects.Index Terms-Time modulated array, frequency modulated array, frequency diverse array, array signal processing, phasedarray, range-dependent beamforming, multiple-input multipleoutput (MIMO) radar.

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“…In [12,13,14] FDA have been investigated in terms of range-dependent beam with applications in suppressing range ambiguous clutter. FDA for synthetic aperture radar (SAR) high-resolution imaging was reported in [15]. Furthermore, [16,17] exploited FDA capabilities in range and angle localization of targets.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Phased Array and Frequency Diverse Array Radar Ambiguity Functions

Nusenu¹

2017

Adv. sci. technol. eng. syst. j.

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Radar ambiguity function is widely employed to analyze a radar system's time delay (range) resolution, Doppler frequency (range rate) resolution, mainlobe width and sidelobes in both range and Doppler. In this paper, ambiguity functions of frequency diverse array (FDA) which offers range-angle dependent transmit beampattern and Phased array which yields angle transmit beampattern is investigated. The FDA and Phased array radar ambiguity function is derived and evaluate its performance characteristics in terms of time-delay and Doppler frequency resolutions. Performance analysis has also been done in terms of empirical cumulative distribution function (ECDF). Simulation and results have verified the effectiveness of both radar systems by comparing their performance characteristics.

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Application of Frequency Diverse Arrays to Synthetic Aperture Radar Imaging

Cited by 75 publications

References 3 publications

Frequency Diverse Array Antenna: New Opportunities

Frequency Diverse Array Antenna: New Opportunities

An Overview on Time/Frequency Modulated Array Processing

Performance Analysis of Phased Array and Frequency Diverse Array Radar Ambiguity Functions

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