Electronic Protection in Cognitive Widely-Separated MIMO Radar with Constrained Real-Time Waveform Design for against Spatial and Spectral Interference

Message:
Article Type:
Research/Original Article (بدون رتبه معتبر)
Abstract:

This paper presents a novel approach for designing discrete-phase, fixed-amplitude sequences optimized for Widely Separated Multiple-Input Multiple-Output (WS-MIMO) radar systems. The proposed sequences aim to mitigate narrowband interference (jamming) or telecommunications interference while simultaneously shaping the beam to reject threats. By minimizing the maximum integrated side lobe level (ISL), removing undesired frequency bands, and suppressing the spatial beam in specific directions for each set of co-located MIMO (CL-MIMO) radar, we achieve sets of sequences that effectively address the challenges posed by WS-MIMO radar environments.A multi-dimensional constrained optimization problem is formulated to balance the competing objectives of ISLR reduction, interference suppression, and beam shaping. Pareto weight functions are employed to ensure a trade-off among these criteria. A computationally efficient algorithm, leveraging the Coordinate Descent (CD) framework and Fast Fourier Transform (FFT), is developed to solve this optimization problem. The proposed method enables the design of WS-MIMO radar waveforms that effectively suppress interference, enhance target detection, and improve spatial resolution.

Language:
Persian
Published:
Journal of Researches on Rlectronic Defense Systems, Volume:4 Issue: 1, 2025
Pages:
1 to 15
https://www.magiran.com/p2852165  
سامانه نویسندگان
  • Seyed Mohammad Alavi
    Corresponding Author (2)
    Associate Professor electrical dept, Imam Hossein University, Tehran, Iran
    Alavi، Seyed Mohammad
  • Yaser Norouzi
    Author (3)
    Assistant Professor Electrical Engineering, Amirkabir University of Technology, Tehran, Iran
    Norouzi، Yaser
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