Results 51 to 60 of about 824,340 (177)

Optimal Carrier Frequency Design for Frequency Diverse Array Mimo Radar

open access: yes, 2023
In this work, we introduce a novel approach for designing the transmit frequency offset scheme based on Cramér-Rao lower bound (CRLB) minimization for a frequency diverse array multiple-input multiple-output (FDA-MIMO) radar.
Cheng, Jie   +3 more
core   +1 more source

Range Ambiguous Clutter Rank Estimation in Airborne Element‐Pulse Coding‐Multiple‐Input Multiple‐Output Radar

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper analyzes the clutter rank under range ambiguity in EPC‐MIMO radar. ABSTRACT Space‐time adaptive processing (STAP) with element‐pulse coding (EPC)‐multiple‐input multiple‐output (MIMO) radars is capable of suppressing range ambiguous clutter in airborne radar fields. However, clutter rank has not been investigated in EPC‐MIMO radars, which is
Di Song   +5 more
wiley   +1 more source

Fundamental aspects of netted radar performance [PDF]

open access: yes, 2010
Netted radar employs several spatially distributed transmitters and receivers for information retrieval. This system topology offers many advantages over traditional monostatic and bistatic systems which use a single transmitter and a single receiver ...
Teng, Y.
core  

Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

open access: yesInternational Journal of Antennas and Propagation, 2016
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 ...
Ling Huang   +3 more
doaj   +1 more source

Research on Amplitude Characteristics of FDA‐AWACS and Direction Finding Mechanism of Anti‐Beam Search Method

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper addresses the poor survivability of AWACS against passive positioning in electromagnetic countermeasures by investigating the amplitude–frequency response and antibeam search direction‐finding deception mechanism of FDA‐based AWACS, with the goal of offering theoretical support and technical solutions for antipassive direction finding.
Jing Zhang, Bo Wang, Haowei Zhang
wiley   +1 more source

Developments in target micro-Doppler signatures analysis : radar imaging, ultrasound and through-the-wall radar [PDF]

open access: yes, 2013
Target motions, other than the main bulk translation of the target, induce Doppler modulations around the main Doppler shift that form what is commonly called a target micro-Doppler signature.
Woodbridge, K.   +3 more
core   +5 more sources

Low‐Probability‐Of‐Intercept Point Beam Design for Frequency Diverse Array‐Multiple‐Input Multiple‐Output Radio Detectors Based on Adaptive Weight‐Deep Deterministic Policy Gradient Reinforcement Learning

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This study focuses on the design of low‐probability‐of‐intercept (LPI) point beams for the radio detector. We construct a new evaluation model to verify the spatial LPI performance. Frequency diverse array‐multiple‐input multiple‐output (FDA‐MIMO) beams are employed and key factors influencing beam convergence are determined.
Jinwei Jia   +4 more
wiley   +1 more source

SRLF‐MUSIC: Toeplitz‐Anchored Structure‐Regularised Low‐Risk Covariance Fusion for Low‐SNR Small‐Snapshot MIMO Radar DOA Estimation

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
SRLF‐MUSIC addresses low‐SNR, small‐snapshot MIMO radar DOA estimation by stabilising the covariance matrix supplied to MUSIC. The method uses a Toeplitz structural anchor and risk‐controlled covariance fusion to balance finite‐sample information and structural robustness.
Li Che, Lin Li , Liubing Jiang
wiley   +1 more source

Frequency Diverse Array‐Based Angle Deception Against Conical‐Scan Automatic Direction Finding Systems

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper proposes an FDA‐based angle deception technique to counter conical‐scan automatic direction finding that threatens AWACS platforms. By exploiting range‐angle‐time coupling, FDA disrupts the fixed amplitude‐azimuth mapping and sinusoidal modulation premise of the enemy DF system, introducing systematic deception bias and amplifying random ...
Jing Zhang, Bo Wang, Haowei Zhang
wiley   +1 more source

Joint optimisation of transmit beamspace and receive filter in frequency diversity array‐multi‐input multi‐output radar

open access: yesIET Radar, Sonar & Navigation, 2022
Frequency diversity array (FDA) radar provides more degrees of freedom and can generate range‐angle‐time‐dependent beampattern. Furthermore, based on the receiver's multi‐input multi‐output (MIMO) scheme, the frequency diversity array‐multi‐input multi ...
Changlin Zhou   +5 more
doaj   +1 more source

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