Low Probability of Intercept Antenna Array Beamforming

Lawrence, D.E.

doi:10.1109/tap.2010.2052573

Cited by 67 publications

(45 citation statements)

References 19 publications

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“…By applying a linear phase progression to (6) in increments of κ = 2π N for first pattern, 2κ for the second pattern and so forth, additional patterns can be created. In such a fashion, (N − 1) patterns can be generated.…”

Section: Lpi Fda Beamformingmentioning

confidence: 99%

“…Furthermore, active surveillance radars are highly susceptible to detection and interception by opposing forces. The electronic support measures (ESM) can be used to intercept the radar transmission and possibly facilitate harmful electronic counter-measures (ECM) techniques [6]. Therefore it is essential to develop low probability of intercept (LPI) radar systems.…”

Section: Introductionmentioning

confidence: 99%

“…Mostly, three main areas are considered in order to reduce radar visibility [6]: (i) spreading the energy in time with high duty cycle waveforms (ii) spreading the energy in frequency with wide bandwidth waveforms (iii) spreading the energy in space through broad transmitter antenna beams. In [9], frequency hopping, orthogonal frequency division multiplexing (OFDM), and random waveforms have been put forward for LPI radars.…”

Section: Introductionmentioning

confidence: 99%

“…Although with specific beamforming technique, the probability of being detected in sidelobe region can be reduced. In [6], LPI transmit array beamforming method was proposed which employed phased array antenna. Even though phased-array antenna has been widely employed for numerous applications, it produce fixed steering beam at an angle for all the ranges [11].…”

Section: Introductionmentioning

confidence: 99%

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Low Probability of Interception Beampattern Using Frequency Diverse Array Antenna

Nusenu¹

2017

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

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Frequency diverse array (FDA) antenna employs a small frequency increment, as compared with the carrier frequency, across antenna array elements. The use of a frequency increment generates an array factor that is dependent on angle, time, and the range and this yields a range and angle dependent beampattern. In this paper, a transmit array beamforming FDA employing costa sequence frequency increments is proposed that offers low probability of interception (LPI) for radar systems. Because active radars are highly visible to intercept receivers, FDA beam with uniform linear array and non-linearly increasing frequency offsets to reduce the system visibility is replaced by the conventional high gain phased-array antenna beam. The proposed method produce random-like peak distribution without obvious peaks making it difficult to be detected by unfriendly detector or intercept receivers without known of the specified coding sequence for the frequency increments. Numerical simulation results verify the proposed method.

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Section: Lpi Fda Beamformingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Low Probability of Interception Beampattern Using Frequency Diverse Array Antenna

Nusenu¹

2017

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

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“…Numerous techniques have been proposed to lower the detection probability by the electronic support measures receivers of targets [2][3][4]. These technologies include high duty cycle, wideband waveforms, lower sidelobes, and broader antenna beam pattern [5,6]. However, these methods can not decrease the detection probability of the radar transmit signal by the target and increase the detection probability of reflected signal by radar receiver.…”

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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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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Frequency Diverse Phased Arrays

Wang

2019

Wiley Encyclopedia of Electrical and Electronics Engineering

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This article introduces what frequency diverse array (FDA) is and why it could be utilized in radar and wireless communication systems for improved performance. Recent advances and potential applications together with the technical challenges are discussed. It is shown that FDA indeed provides promising potential for future radar, communications, and even integrated radar and communication applications. However, for practical applications further work on system implementation, optimal array signal processing, and time‐variance related problems should be carried out.

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Low Probability of Intercept Antenna Array Beamforming

Cited by 67 publications

References 19 publications

Low Probability of Interception Beampattern Using Frequency Diverse Array Antenna

Low Probability of Interception Beampattern Using Frequency Diverse Array Antenna

Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

Frequency Diverse Phased Arrays

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