Next Article in Journal
Survey on the Application of Robotics in Archaeology
Previous Article in Journal
Finite Element Model Updating for a Continuous Beam-Arch Composite Bridge Based on the RSM and a Nutcracker Optimization Algorithm
Previous Article in Special Issue
MC-ASFF-ShipYOLO: Improved Algorithm for Small-Target and Multi-Scale Ship Detection for Synthetic Aperture Radar (SAR) Images
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Antenna Model with Pattern Optimization Based on Genetic Algorithm for Satellite-Based SAR Mission

by
Saray Sánchez-Sevilleja
1,
Marcos García-Rodríguez
1,
José Luis Masa-Campos
2,* and
Juan Manuel Cuerda-Muñoz
1
1
INTA National Institute of Aerospace Technology, Ajalvir Road, km 4, 28850 Torrejón de Ardoz, Spain
2
E.T.S.I. Telecommunication, Department of Signals, Systems and Radiocommunications, Universidad Politécnica de Madrid (UPM), C/Ramiro de Maeztu 7, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Sensors 2025, 25(15), 4835; https://doi.org/10.3390/s25154835
Submission received: 10 June 2025 / Revised: 28 July 2025 / Accepted: 4 August 2025 / Published: 6 August 2025
(This article belongs to the Special Issue Recent Advances in Synthetic Aperture Radar (SAR) Remote Sensing)

Abstract

Synthetic aperture radar (SAR) systems are of paramount importance to remote sensing applications, including Earth observation and environmental monitoring. Accurate calibration of these systems is imperative to ensuring the accuracy and reliability of the acquired data. A central component of the calibration process is the antenna model, which serves as a fundamental reference for characterizing the radiation pattern, gain, and overall performance of SAR systems. The present paper sets out to describe the implementation and validation of a phased-array antenna model for Synthetic Aperture Radar Systems (SARAS) in MATLAB R2024a. The antenna model was developed for utilization in the Spanish Earth observation missions PAZ and PRECURSOR-ECO. The antenna model incorporates a number of functions, which are divided into two primary modules: the first of these is the antenna pattern generation (APG) module, and the second is the antenna excitation generation (AEG) module. The present document focuses on the AEG, the function of which is to generate patterns for all required beams. These patterns are optimized and matched to specific calculated masks using an ad hoc genetic algorithm (GA). In consideration of the aforementioned factors, the AEG module generates a set of complex excitations corresponding to the required beam from different satellite operational beams, based on several radiometrically defined parameters. 
Keywords: satellite-based SAR; phased arrays; beams; excitations; optimization; genetic algo-rithm; antenna model satellite-based SAR; phased arrays; beams; excitations; optimization; genetic algo-rithm; antenna model

Share and Cite

MDPI and ACS Style

Sánchez-Sevilleja, S.; García-Rodríguez, M.; Masa-Campos, J.L.; Cuerda-Muñoz, J.M. Antenna Model with Pattern Optimization Based on Genetic Algorithm for Satellite-Based SAR Mission. Sensors 2025, 25, 4835. https://doi.org/10.3390/s25154835

AMA Style

Sánchez-Sevilleja S, García-Rodríguez M, Masa-Campos JL, Cuerda-Muñoz JM. Antenna Model with Pattern Optimization Based on Genetic Algorithm for Satellite-Based SAR Mission. Sensors. 2025; 25(15):4835. https://doi.org/10.3390/s25154835

Chicago/Turabian Style

Sánchez-Sevilleja, Saray, Marcos García-Rodríguez, José Luis Masa-Campos, and Juan Manuel Cuerda-Muñoz. 2025. "Antenna Model with Pattern Optimization Based on Genetic Algorithm for Satellite-Based SAR Mission" Sensors 25, no. 15: 4835. https://doi.org/10.3390/s25154835

APA Style

Sánchez-Sevilleja, S., García-Rodríguez, M., Masa-Campos, J. L., & Cuerda-Muñoz, J. M. (2025). Antenna Model with Pattern Optimization Based on Genetic Algorithm for Satellite-Based SAR Mission. Sensors, 25(15), 4835. https://doi.org/10.3390/s25154835

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop