Surface Reconstruction of Large Reflector Antennas Based on a Hybrid of CMA-ES and HIO Algorithms

Xu, Yueshu; Ye, Qian; Hoorfar, Ahmad

doi:10.1109/apusncursinrsm.2019.8889004

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…CMA-ES handles the pairwise dependencies between sample points by the covariance matrix and generates new samples with a multivariate normal distribution [24]. Therefore, the CMA-ES algorithm is often used to improve the global search performance of other algorithms [21,25]. Selecting it as the other algorithm for hybridization, we propose a new Segmented Hybrid PSO and CMA-ES (SHPC) algorithm.…”

Section: Segmented Hybrid Pso and Cma-es Algorithmmentioning

confidence: 99%

“…i ; Update G best : If f (x i ) is better than the fitness value of G best , then G best is set to the position of the current particle x i ; Update velocities: Calculate velocities v i using Equation(25).If v i > v max then v i = v max .If v i < v min then v i = v min ;Update positions: Calculate positions x i using Equation (26); (H < 100 & K > 100) (Execute CMA-ES algorithm) Initialize population of CMA-ES (set G best as the m at CMA-ES) FOR (each individual i) Update x i : Generating new individuals using the Gaussian distribution by Equation (27). Calculate fitness: Calculate the fitness value of the current individuals: f (x i ).…”

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A Novel Method for Inverse Kinematics Solutions of Space Modular Self-Reconfigurable Satellites with Self-Collision Avoidance

Zhang

et al. 2022

Aerospace

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Space modular self-reconfigurable satellites (SMSRSs) are a new type of satellite with reconfigurable structures and adjustable functions. The inverse kinematics of the hyper-redundant structure of SMSRSs are difficult to solve by traditional methods. In this paper, the inverse kinematics of SMSRS is transformed into an optimization problem and solved using the optimization method. Moreover, the avoidance of self-collision is implemented in the optimization process. Firstly, the kinematic model of SMSRS is established. Then, to find the more accurate inverse kinematics solutions, a novel Segmented Hybrid CMA-ES and PSO (SHCP) algorithm is proposed. The algorithm is used for three cases of inverse kinematic problems, and the optimization results prove the optimization method is effective to solve the inverse kinematic problem with self-collision avoidance. Compared to the results of PSO variants, meta-heuristic algorithms, and hybrid algorithms, the novel algorithm has higher accuracy, proving its better performance on the inverse kinematics problem of SMSRS.

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Section: Segmented Hybrid Pso and Cma-es Algorithmmentioning

confidence: 99%

mentioning

confidence: 99%

A Novel Method for Inverse Kinematics Solutions of Space Modular Self-Reconfigurable Satellites with Self-Collision Avoidance

Zhang

et al. 2022

Aerospace

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Study on the optimal Zernike order in the phase parameterization for global phase retrieval algorithm

Hoorfar

2020

Int. J. Microw. Wireless Technol.

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Phase retrieval algorithm is an effective method to reconstruct the surface distortions for reflector antennas. As the traditional Fourier iterative algorithms usually stagnate at local minima, we previously proposed a global phase retrieval algorithm, named CMAES-HIO, based on the hybridization of hybrid-input-output algorithm and covariance matrix adaptation evolution strategy. We address the problem of selection of the Zernike order used in the phase parameterization for CMAES-HIO algorithm in this paper. By introducing a hybrid evaluation parameter, which combines the algorithm accuracy and time consumption, we utilize the Monte-Carlo method to simulate the algorithm performance under different random surface distortions. Simulation results show that for an unknown surface distortion, a Zernike order of 5 or 6 is probably the optimum for the comprehensive algorithm performance with respect to time and accuracy.

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Optimal Zernike Parameterization in Global Phase Retrieval of Large Reflector Antennas

Hoorfar

2020

2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting

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Surface Reconstruction of Large Reflector Antennas Based on a Hybrid of CMA-ES and HIO Algorithms

Cited by 3 publications

References 4 publications

A Novel Method for Inverse Kinematics Solutions of Space Modular Self-Reconfigurable Satellites with Self-Collision Avoidance

A Novel Method for Inverse Kinematics Solutions of Space Modular Self-Reconfigurable Satellites with Self-Collision Avoidance

Study on the optimal Zernike order in the phase parameterization for global phase retrieval algorithm

Optimal Zernike Parameterization in Global Phase Retrieval of Large Reflector Antennas

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