A Novel Circular Array Structure and Particle Swarm Optimization in Aperture Synthesis Radiometers

A novel array configuration, circular lattice array (CLA), to generate uniform rectangular grid u-v coverage for aperture synthesis radiometers is introduced. Particle swarm optimization (PSO) algorithm is applied to finding optimal CLA configurations. To evaluate the advantages of the CLA over previously proposed circular arrays, a comparative study is carried out by analyzing the performance of the CLA in terms of both the number of samples in u-v coverage and the computation cost of the fitness function in optimization algorithm. The obtained optimization results for 5-30 elements are also presented.

[1]  Timothy J. Cornwell,et al.  A novel principle for optimization of the instantaneous Fourier plane coverage of correction arrays , 1988 .

[2]  Y. Rahmat-Samii,et al.  Analysis and Particle Swarm Optimization of Correlator Antenna Arrays for Radio Astronomy Applications , 2008, IEEE Transactions on Antennas and Propagation.

[3]  James Kennedy,et al.  Particle swarm optimization , 2002, Proceedings of ICNN'95 - International Conference on Neural Networks.

[4]  Y. Rahmat-Samii,et al.  Particle swarm optimization in electromagnetics , 2004, IEEE Transactions on Antennas and Propagation.

[5]  Xin Lu,et al.  NUFFT-Based Iterative Reconstruction Algorithm for Synthetic Aperture Imaging Radiometers , 2009, IEEE Geoscience and Remote Sensing Letters.

[6]  D. M. Le Vine,et al.  Synthetic aperture radiometer systems , 1999, IMS 1999.

[7]  Christopher S. Ruf,et al.  Antenna Performance For A Synthetic Aperture Microwave Radiometer In Geosynchronous Earth Orbit , 1990, 10th Annual International Symposium on Geoscience and Remote Sensing.

[8]  C. Ruf,et al.  Interferometric synthetic aperture microwave radiometry for the remote sensing of the Earth , 1988 .