Publications

Ph.D. Thesis


Here you can find my Ph.D. thesis (in Portuguese only).

Chagas, R. A. J (2012). Estimação Distribuída de Erros em Sistemas de Navegação Inercial Auxiliada. Ph.D. Thesis, Instituto Tecnológico de Aeronáutica. Online (ITA) Download PDF

Abstract

Published Papers in Peer-Reviewed Journals


Here you can find my published papers in peer-reviewed journals.

Chagas, R. A. J.; Waldmann, J (2016). Theoretical Analysis of the Measurement Transportation Algorithm to Fuse Delayed Data in Distributed Sensor Networks. In IEEE Transactions on Signal and Information Processing over Networks (ISSN: 2373-776X), vol. 2, no. 3, pp. 246-259. Online

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Waldmann, J.; da Silva, R. I. G.; Chagas, R. A. J (2015). Observability analysis of inertial navigation errors from optical flow subspace constraint. In Information Sciences (ISSN: 0020-0255), Vol. 327, pp.300-326. Online

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Chagas, R. A. J.; Waldmann, J (2012). A Novel Linear, Unbiased Estimator to Fuse Delayed Measurements in Distributed Sensor Networks with Application to UAV Fleet. In Advances in Estimation, Navigation, and Spacecraft Control (ISSN: 978-3-662-44785-7), Part I, pp. 135-157. Online (ITA)

Also published as:

Chagas, R. A. J.; Waldmann, J (2012). A Novel Linear, Unbiased Estimator to Fuse Delayed Measurements in Distributed Sensor Networks with Application to UAV Fleet. In Proceedings of the Itzhack Y. Bar-Itzhack Memorial Symposium, Haifa, Israel. Online Download PDF

Abstract

 

Chagas, R. A. J.; Waldmann, J (2012). Observability Analysis for the INS Error Model with GPS/Uncalibrated Magnetometer Aiding. In Advances in Estimation, Navigation, and Spacecraft Control (ISSN: 978-3-662-44785-7), Part II, pp. 235-257. Online

Also published as:

Chagas, R. A. J.; Waldmann, J (2012). Observability Analysis for the INS Error Model with GPS/Uncalibrated Magnetometer Aiding. In Proceedings of the Itzhack Y. Bar-Itzhack Memorial Symposium, Haifa, Israel. Online Download PDF

Abstract

 

Chagas, R. A. J.; Waldmann, J (2012). Rao-Blackwellized particle filter with vector observations for satellite three-axis attitude estimation and control in a simulated testbed. In Revista SBA: Controle & Automação (ISSN: 1807-0345), Vol. 23, No. 3, pp. 277-293. Online Download PDF

Abstract

 

Chagas, R. A. J.; Waldmann, J (2010). Nonlinear filtering in a simulated three-axis satellite attitude estimation and control testbed. In Journal of Aerospace Engineering, Sciences and Applications (ISSN: 2236-577X), Vol. 2, No. 2, pp. 37-49. Download PDF

Also published as:

Chagas, R. A. J.; Waldmann, J (2010). Nonlinear filtering in a simulated three-axis satellite attitude estimation and control testbed. In Proceedings of the VI SBEIN, Rio de Janeiro, Rio de Janeiro, Brasil. Download PDF

Abstract

Published Papers in Peer-Reviewed Conferences


Here you can find my published papers in peer-reviewed conference proceeding.

Romero, A. G.; Souza, L. C. G.; Chagas, R. A. J (2018). Application of the SDRE Technique in the Satellite Attitude and Orbit Control System with Nonlinear Dynamics. In Proceedings of the 15th International Conference on Space Operations., Marseille, France. Online

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Chagas, R. A. J.; Waldmann, J (2016). Extrapolation of Delayed Measurements for Fusion in a Distributed Sensor Network. In Proceedings of the 24th Mediterranean Conference on Control and Automation, Athens, Greece. Online

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Chagas, R. A. J.; de Albuquerque, B. F. C.; Lopes, R. A. M.; de Sousa, F. L (2015). Towards the automation of concurrent space systems conceptual design through multidisciplinary design optimization. In Proceedings of the 23rd ABCM International Congress of Mechanical Engineering, Rio de Janeiro, Brazil. Online

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Chagas, R. A. J.; Galski, R. L.; Sousa, F. L (2014). ORBGEO – An Orbit Selection Tool for Satellite Constellations Using the Multiobjective Generalized Extremal Optimization (MGEO) Algorithm. In Proceedings of the 6th International Conference on Systems & Concurrent Engineering for Space Applications, Stuttgart, Germany. Online Download PDF

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Chagas, R. A. J.; Lopes, R. V. da F (2014). Seasonal Analysis of Attitude Estimation Accuracy for the Brazilian Satellite Amazonia-1 Under Normal and Faulty Conditions. In Proceedings of the 24th International Symposium on Space Flight Dynamics, Laurel, Maryland, USA. Online Download PDF

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Silva, F. O.; Hemerly, E. M.; Leite Filho, W. de C.; Chagas, R. A. J (2014). An Improved Stationary Fine Self-Alignment Approach for SINS Using Measurement Augmentation. In Proceedings of the XX Congresso Brasileiro de Automática, Belo Horizonte, MG, Brazil. Download PDF

Abstract

 

Chagas, R. A. J.; Waldmann, J (2012). Geometric inference-based observability analysis digest of INS error model with GPS/Magnetometer/Camera aiding. In Proceedings of the 19th Saint Petersburg International Conference on Integrated Navigation, Saint Petersburg, Russia. Download PDF

Abstract

 

Lustosa, L. R.; Chagas, R. A. J.; Waldmann, J (2011). Sighting device-aided inertial navigation: fusion with adaptive Kalman filtering techniques. In Proceedings of the COBEM 2011, Natal, Rio Grande do Nortel, Brasil.

Abstract

Chagas, R. A. J.; Waldmann J (2010). Extrapolação para fusão distribuída de medidas atrasadas em rede de sensores. Anais do XVIII Congresso Brasileiro de Automática, Bonito, Mato Grosso do Sul, Brasil. (Paper in Portuguese, the English title is: Extrapolation for distributed fusion of delayed measurements in sensors network) Download PDF

Abstract

 

Chagas, R. A. J.; Waldmann, J (2010). Nonlinear filtering in a simulated three-axis testbed for satellite attitude estimation and control. In Proceedings of the VI CONEM, Campina Grande, Paraíba, Brasil.

Abstract

 

Campos, R. de F. E.; Chagas, R. A. J.; Bücker, T.; Waldmann, J (2010). Implementação em tempo real do controle de um imageador giroestabilizado em arfagem e guinada. Anais do XII SIGE, São José dos Campos, São Paulo, Brasil. (Paper in Portuguese, the English title is: Real-time implementation of a controller for a pan & tilt gyro-stabilized imaging device)

Abstract (available only in Portuguese)

 

Chagas, R. A. J.; Waldmann J (2009). Difusão de medidas para estimação distribuída em uma rede de sensores. Anais do XI SIGE, Vol. V, pp. 71-75, São José dos Campos, São Paulo, Brasil. (Paper in Portuguese, the English title is: Measurements diffusion for distributed estimation in sensors networks)

Abstract (available only in Portuguese)

 

If you want the English translation of any of my publications, please, fell free to contact me by e-mail.