Frequency Diverse Array Antenna with Periodic Time Modulated Pattern in Range and Angle

Seçmen, Mustafa; Demır, Şımşek; Hizal, A.; Eker, Taylan

doi:10.1109/radar.2007.374254

Cited by 248 publications

(124 citation statements)

References 3 publications

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“…Note that is the slow time and is the fast time. Since ( ) is orthogonal, the received signals International Journal of Antennas and Propagation 5 can be processed by a matched filter, which outputs an × matrix: ( ) a tr ( , ) + N, (15) where…”

Section: Localization Of Fda Mimo Radarmentioning

confidence: 99%

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Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

Huang

Gao

et al. 2016

International Journal of Antennas and Propagation

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Frequency diverse array (FDA) has its unique advantage in realizing low probability of intercept (LPI) technology for its dependent beam pattern. In this paper, we proposed a cognitive radar based on the frequency diverse array multiple-input multiple-output (MIMO). To implement LPI of FDA MIMO transmit signals, a scheme for array weighting design is proposed, which is to minimize the energy of the target location and maximize the energy of the receiver. This is based on the range dependent characteristics of the frequency diverse array transmit beam pattern. To realize the objective problem, the algorithm is proposed as follows: the second-order nonconvex optimization problem is converted into a convex problem and solved by the bisection method and convex optimization. To get the information of target, the FDA MIMO radar is proposed to estimate the target parameters. Simulation results show that the proposed approach is effective in decreasing the detection probability of radar with lossless detection performance of the receive signal.

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Section: Localization Of Fda Mimo Radarmentioning

confidence: 99%

“…This small frequency increment results in a range-angle-dependent beam pattern [12][13][14]. The time and angle periodicity of FDA beam pattern was analyzed in [15]. A linear FDA was proposed in [16] for forward-looking radar ground moving target indication.…”

Section: Introductionmentioning

confidence: 99%

Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

Huang

Gao

et al. 2016

International Journal of Antennas and Propagation

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show abstract

“…In [4], FDA applications for various modes of operations in radar systems has been presented. The periodicity of beam pattern in time, range and angle was investigated in [5]. In [6], a linear FDA was proposed to address the range ambiguous clutters and improves the detection ability in a relatively slow moving targets.…”

Section: Introductionmentioning

confidence: 99%

Transmit / Received Beamforming for Frequency Diverse Array with Symmetrical frequency offsets

Nusenu¹

2017

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

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“…This stepped-frequency offset results in that the beam can scan the space in a periodic manner [5,6]. Its beamforming focusing direction will change as a function of the range, angle, time, and even the frequency offset [7].…”

Section: Introductionmentioning

confidence: 99%

“…FDA was investigated in [14] as a range-dependent beam with applications in suppressing range ambiguous clutter. Secmen et al [5] described the time and angle periodicity of FDA radiation pattern. Higgins and Blunt [15] explored rangeangle coupled beamforming in FDA.…”

Section: Introductionmentioning

confidence: 99%

Range-azimuth decouple beamforming for frequency diverse array with Costas-sequence modulated frequency offsets

Wang

Shao

2016

EURASIP J. Adv. Signal Process.

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Different from the phased-array using the same carrier frequency for each transmit element, the frequency diverse array (FDA) uses a small frequency offset across the array elements to produce range-angle-dependent transmit beampattern. FDA radar provides new application capabilities and potentials due to its range-dependent transmit array beampattern, but the FDA using linearly increasing frequency offsets will produce a range and angle coupled transmit beampattern. In order to decouple the range-azimuth beampattern for FDA radar, this paper proposes a uniform linear array (ULA) FDA using Costas-sequence modulated frequency offsets to produce random-like energy distribution in the transmit beampattern and thumbtack transmit-receive beampattern. In doing so, the range and angle of targets can be unambiguously estimated through matched filtering and subspace decomposition algorithms in the receiver signal processor. Moreover, random-like energy distributed beampattern can also be utilized for low probability of intercept (LPI) radar applications. Numerical results show that the proposed scheme outperforms the standard FDA in focusing the transmit energy, especially in the range dimension.

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Frequency Diverse Array Antenna with Periodic Time Modulated Pattern in Range and Angle

Cited by 248 publications

References 3 publications

Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

Transmit / Received Beamforming for Frequency Diverse Array with Symmetrical frequency offsets

Range-azimuth decouple beamforming for frequency diverse array with Costas-sequence modulated frequency offsets

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