نوع مقاله : مقاله پژوهشی
عنوان مقاله English
نویسندگان English
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.
کلیدواژهها English
