NDLI: Frequency diverse array and MIMO hybrid radar transmitter design via Cramér

Content Provider	IET Digital Library
Author	Gao, Kuandong Wang, Wen Qin Cai, Jingye
Abstract	Frequency diverse array (FDA) produces a range–angle-dependent transmit beampattern and offers a potential solution to localise targets in two dimensions with respect to slant range and azimuth angle. However, it is difficult to unambiguously estimate the target location information by a standard FDA radar via conventional adaptive beamforming due to its coupling range–angle response. In this study, the authors propose two FDA and multiple-input multiple-output (MIMO) hybrid radar transmitter design schemes by minimising the Cramér–Rao lower bound (CRLB) for range-dependent target localisation, namely, FDA–MIMO radar and transmit subarray FDA–MIMO (TS-FDA) radar. The former uses a small frequency increment across the MIMO antennas, whereas the latter divides the FDA elements into multiple subarrays using the same waveform within each subarray and orthogonal waveforms in distinct subarrays. The formulated CRLB minimisation problem is solved by convex optimisation. Furthermore, the targets are localised using the beamspace-based multiple signal classification algorithm. The designed FDA–MIMO and TS-FDA radars are evaluated by comparing their mean square error and cumulative distribution function performance.
Starting Page	1660
Ending Page	1670
Page Count	11
ISSN	17518784
Volume Number	10
e-ISSN	17518792
Issue Number	Issue 9, Dec (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/10/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2015.0644
Journal	IET Radar, Sonar & Navigation
Publisher Date	2016-04-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Beamforming Array Signal Processing Beamspace-based Multiple Signal Classification Algorithm Convex Optimisation Convex Programming Coupling Range-angle Response Cramer-Rao Lower Bound Minimisation CRLB Minimisation Problem Cumulative Distribution Function Performance Frequency Diverse Array Interpolation And Function Approximation Mean Square Error Method Mean Square Error Performance MIMO Antenna MIMO Hybrid Radar Transmitter Design MIMO Radar Minimisation Multiple-input Multiple-output Hybrid Radar Transmitter Design Numerical Analysis Optimisation Technique Radar Equipment Radar Signal Processing Radar Theory Radar Transmitters Range-angle-dependent Transmit Beampattern Range-dependent Target Localisation Signal Classification Signal Processing And Detection Statistical Distribution Statistics Subarray FDA-MIMO Radar System And Application Target Location Information Estimation TS-FDA Radar
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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