NDLI: Interference cancellation in co-located MIMO radars using waveform optimisation in signal dependent clutter

Content Provider	IET Digital Library
Author	Haghnegahdar, Mohamad Mehrshahi, Esfandiar Ghorashi, Seyed Ali Imani, Sadjad Nayebi, Mohammad Mahdi
Abstract	In this study, two iterative design algorithms for multiple-input multiple-output (MIMO) radars with co-located antennas with point targets are proposed. In these algorithms, by joint design of the receiver filter and transmit waveform using linear combination of orthogonal waveforms, the authors aim to maximise the signal-to-interference plus-noise ratio (SINR) in the presence of signal dependent interference. In the first proposed algorithm, in each iteration, transmit waveforms and receive filter are designed in closed form to decrease the computational complexity. In the second method, by adding constant envelope criteria, the final waveform would be a linear combination of orthogonal waveforms and because of using a constant envelope, combining coefficients have equal magnitudes and different phases. Therefore, it is more practical for hardware implementation in comparison to the first proposed method. Simulation results show that both proposed methods have better SINR performances compared with other methods proposed in MIMO radar literature. The outperformance of the second proposed method with respect to phased arrays shows that by only using phase shifted combination of orthogonal waveforms, better performance in comparison to phased array radars can be achieved.
Starting Page	1670
Ending Page	1676
Page Count	7
ISSN	17518628
Volume Number	13
e-ISSN	17518636
Issue Number	Issue 11, Jul (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/13/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.5723
Journal	IET Communications
Publisher Date	2019-04-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Closed Form Co-located Antenna Co-located MIMO Radars Combining Coefficient Constant Envelope Constant Envelope Criteria Electromagnetic Compatibility Final Waveform Interference Interference Cancellation Interference Suppression Interpolation And Function Approximation Iterative Design Algorithm Iterative Method Joint Design Linear Combination MIMO Radar MIMO Radar Literature Multiple-input Multiple-output Radars Numerical Analysis Optimisation Optimisation Technique Orthogonal Waveform Phased Array Radar Phased Array Radars Point Targets Radar Antenna Radar Clutter Radar Equipment Radar Signal Processing Receiver Filter Signal Dependent Clutter Signal Dependent Interference Signal Processing And Detection Signal-to-interference Plus-noise Ratio Single Antenna System And Application Transmit Waveform Waveform Optimisation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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