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Transmit Beampattern Synthesis for Frequency Diverse Array With Particle Swarm Frequency Offset Optimization
- Source :
- IEEE Transactions on Antennas and Propagation. 69:892-901
- Publication Year :
- 2021
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2021.
-
Abstract
- Different from the conventional phased array radar, a frequency diverse array (FDA) applies additional frequency shift across the array elements, yielding a range–angle-dependent transmit beampattern that provides a huge potential opportunity for target estimation and range-dependent clutter and interference suppression. Generally, the conventional FDA employs a linear small frequency increment, forming a time-varying “S”-shape range–angle beampattern, which is range–angle coupled. In this article, a range–angle transmit beampattern synthesis method for FDA based on frequency offset optimization is proposed. Particle swarm optimization (PSO) is adopted in the FDA element frequency increment design to achieve a dot-shaped transmit beampattern. Meanwhile, matched weights are designed for time-modulation compensation. Numerical simulation results demonstrate that the proposed approach achieves better time-invariant performance over other FDA frameworks.
- Subjects :
- Phased array
Computer science
Computer Science::Neural and Evolutionary Computation
Particle swarm optimization
020206 networking & telecommunications
02 engineering and technology
Interference (wave propagation)
Time–frequency analysis
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
Frequency offset
Clutter
Electrical and Electronic Engineering
Frequency modulation
Diversity scheme
Subjects
Details
- ISSN :
- 15582221 and 0018926X
- Volume :
- 69
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Antennas and Propagation
- Accession number :
- edsair.doi...........be6900ba820a5ffad5b8a811b3e647f4