Phased-MIMO Radar With Frequency Diversity for Range-Dependent Beamforming

Wang, Wen-Qin

doi:10.1109/jsen.2012.2232909

Cited by 118 publications

(50 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Taking the first element as the reference for the array, under far-field condition, one might express the direct wave component of the electric field emitted from the FDA at the observation point ( , ) as [26] ( , , ) =…”

Section: Data Model Of Fda Radarmentioning

confidence: 99%

“…is the th entry of the transmit steering vector with Δ being the frequency increment [26], where is the element space, is the carrier wavelength, denotes the light speed, and and are the target angle and range, respectively. After being reflected by the targets or interferences, the signals are received by the colocated receiving array.…”

Section: Localization Of Fda Mimo Radarmentioning

confidence: 99%

“…Although recently FDA has drawn much attention in antenna and radar areas, existing literatures mainly concentrate on FDA conceptual system design [22,23]. Furthermore, for FDA MIMO radar system, most of the literatures investigated its beamforming technology [24][25][26], and little work focused on its signal detection applications [27,28].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

Huang

Gao

et al. 2016

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

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.

show abstract

Section: Data Model Of Fda Radarmentioning

confidence: 99%

Section: Localization Of Fda Mimo Radarmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

Huang

Gao

et al. 2016

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

show abstract

“…It can be noticed from (5) that phased-MIMO radar is a compromise between MIMO and phased-array radar and thus enjoys the advantages of MIMO radar extending the array aperture by virtual array and phased-array radar allowing for maximization of the coherent processing gain through transmit beamforming [34]. From (4), we can conclude that the complexity of the traditional processing algorithm is ( 4 2 ).…”

Section: Phased-mimomentioning

confidence: 99%

Joint Phased-MIMO and Nested-Array Beamforming for Increased Degrees-of-Freedom

Zhu

Chen

Shao

2015

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

Phased-multiple-input multiple-output (phased-MIMO) enjoys the advantages of MIMO virtual array and phased-array directional gain, but it gets the directional gain at a cost of reduced degrees-of-freedom (DOFs). To compensate the DOF loss, this paper proposes a joint phased-array and nested-array beamforming based on the difference coarray processing and spatial smoothing. The essence is to use a nested-array in the receiver and then fully exploit the second order statistic of the received data. In doing so, the array system offers more DOFs which means more sources can be resolved. The direction-of-arrival (DOA) estimation performance of the proposed method is evaluated by examining the root-mean-square error. Simulation results show the proposed method has significant superiorities to the existing phased-MIMO.

show abstract

“…A creative and pioneering contribution to the PAR subarray aspects includes subarrayed weighting for side loop canceler, subarrayed adaptation and super resolution, and subarray optimization, which have been investigated in [19]. In [20][21][22], transmitted subaperturing schemes for range and angle estimation in FDA radar have been addressed. Predominantly, the studies on PAR and FDA radar mostly concentrate on clutter suppression, rarely focusing on deception jamming suppression, and fundamentally at the elementary level.…”

Section: Introductionmentioning

confidence: 99%

Subarray-based FDA radar to counteract deceptive ECM signals

Abdalla

Wang

Zhao

et al. 2016

EURASIP J. Adv. Signal Process.

Self Cite

View full text Add to dashboard Cite

In recent years, the frequency diverse array (FDA) radar concept has attracted extensive attention, as it may benefit from a small frequency increment, compared to the carrier frequency across the array elements and thereby achieve an array factor that is a function of the angle, the time, and the range which is superior to the conventional phase array radar (PAR). However, limited effort on the subject of FDA in electronic countermeasure scenarios, especially in the presence of mainbeam deceptive jamming, has been published. Basic FDA is not desirable for anti-jamming applications, due to the range-angle coupling response of targets. In this paper, a novel method based on subarrayed FDA signal processing is proposed to counteract deceptive ECM signals. We divide the FDA array into multiple subarrays, each of which employs a distinct frequency increment. As a result, in the subarray-based FDA, the desired target can be distinguished at subarray level in joint range-angle-Doppler domain by utilizing the fact that the jammer generates false targets with the same ranges to each subarray without reparations. The performance assessment shows that the proposed solution is effective for deceptive ECM targets suppression. The effectiveness is verified by simulation results.

show abstract

Phased-MIMO Radar With Frequency Diversity for Range-Dependent Beamforming

Cited by 118 publications

References 33 publications

Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

Joint Phased-MIMO and Nested-Array Beamforming for Increased Degrees-of-Freedom

Subarray-based FDA radar to counteract deceptive ECM signals

Contact Info

Product

Resources

About