| 2024 | ICONIP | Utilizing Small and Large Spectral Radii for Appropriate Reservoir Computing Design. | Bungo Konishi, Akira Hirose, Ryo Natsuaki |
| 2024 | IGARSS | Polarimetric Goldstein Filter for Interferometric Phase Denoising. | Yuta Otsuka, Ryo Natsuaki, Akira Hirose |
| 2024 | IGARSS | Landmine Detection Based on Riemannian Phasor Quaternion Self-Organizing Map. | Yicheng Song, Ryo Natsuaki, Akira Hirose |
| 2024 | IGARSS | Characterization of Systematic Bias in ALOS-2 Multilooked Interferograms. | Ryu Sugimoto, Yu Morishita, Masanobu Shimada, Ryo Natsuaki, Chiaki Tsutsumi, Ryosuke Nakamura, Toru Kouyama |
| 2024 | IGARSS | Optimizing PN-Sequences with Genetic Algorithm for SAR Waveform Diversity. | Raito Suzuki, Akira Hirose, Ryo Natsuaki |
| 2024 | IJCNN | Time-series Forecasting Coding: A New Processing Method Developed from Predictive Coding for Recurrent Neural Networks. | Yuto Wakui, Junya Kato, Ryo Natsuaki, Akira Hirose |
| 2024 | IGARSS | P4006: An IEEE Standard in Development for RFI Impact Assessment. | Ral Dez-Garca, Roger Oliva, Ryo Natsuaki, Priscilla N. Mohammed, Beau Backus, Mingliang Tao, Paolo de Matthaeis |
| 2024 | IGARSS | Comparison of Temporal Decorrelation Decay Functions Over Land Cover Types for L- and C-vand SAR. | Yukio Endo, Yu Morishita, Ryu Sugimoto, Ryo Natsuaki, Masanobu Shimada, Chiaki Tsutsumi, Toru Kouyama, Ryosuke Nakamura |
| 2024 | IGARSS | RFI Detection Using Degree of Polarization for Polarimetric Synthetic Aperture Radar. | Yu Hashimoto, Ryo Natsuaki, Akira Hirose |
| 2024 | IGARSS | Complex-Valued Neural-Network Inverse Mapping for Explainability in PolSAR/InSAR Applications. | Gunjan Joshi, Ryo Natsuaki, Akira Hirose |
| 2023 | IGARSS | Standardizing The Impact Assessment of Radio Frequency Interference (RFI) in Space-Based Remote Sensing: Challenges and Benefits. | Ryo Natsuaki, Roger Oliva, Ral Dez-Garca, Mingliang Tao, Paolo de Matthaeis |
| 2023 | IGARSS | Urban Damage Detection Using Temporally Stacked Synthetic Aperture Radar Interferometric Coherence. | Ryo Natsuaki, Ryu Sugimoto, Masanobu Shimada, Chiaki Tsutsumi, Ryosuke Nakamura |
| 2023 | IGARSS | Proposal of Biquaternion Neural Networks for Coherent Processing of Polarization-and-Phase Information in Polsar and Polinsar. | Yuta Otsuka, Ryo Natsuaki, Akira Hirose |
| 2023 | IGARSS | Landmine Detection Based on Generalized Riemannian Quaternion Self-Organizing Map. | Yicheng Song, Ryo Natsuaki, Akira Hirose |
| 2023 | IGARSS | Extending Observation Coverage of SAR by Separating Range Ambiguous Signals Using PN-sequences. | Raito Suzuki, Ryo Natsuaki, Akira Hirose |
| 2023 | IJCNN | Symbol Detection for Polarization Shift Keying Based on Quaternion Neural Networks. | Haotian Chen, Ryo Natsuaki, Akira Hirose |
| 2023 | IJCNN | Reservoir Computing for Symbol Detection of Optical Wireless Scattering Communications. | Haotian Chen, Ryo Natsuaki, Akira Hirose |
| 2023 | IGARSS | Estimation of Dielectric Constant Distribution Utilizing Subsurface Objects Based on Radar Image Focusing. | Ryuta Imai, Ryo Natsuaki, Akira Hirose |
| 2023 | IGARSS | Target-Phase-Focused Feature Synthesis and Extraction for Weakly Scattering Objects in Ground Penetrating Radar. | Ryuta Imai, Ryo Natsuaki, Akira Hirose |
| 2023 | IGARSS | Automated Determination of Normalized Indices Useful for Glacier Surface Classification. | Gunjan Joshi, Ryo Natsuaki, Akira Hirose |
| 2023 | IGARSS | INSAR Phase Filtering By Attention-Based Reservoir Computing For High Reliability. | Bungo Konishi, Akira Hirose, Ryo Natsuaki |
| 2022 | IGARSS | Polarimetric Analysis of RFI in L-Band SAR System. | Ryo Natsuaki, Akira Hirose |
| 2022 | IGARSS | An experiment of flooded building detection using ALOS-2 and a flood experiment field. | Masato Ohki, Ryo Natsuaki, Sadayoshi Aoyama, Takeo Tadono |
| 2022 | IJCNN | Predicting polarization state based on quaternion neural networks to facilitate channel prediction. | Haotian Chen, Ryo Natsuaki, Akira Hirose |
| 2022 | IGARSS | Proposal of Detection of Subsurface Objects with Model-Based Homogeneity to Extend Compressed Sensing. | Ryuta Imai, Yicheng Song, Ryo Natsuaki, Akira Hirose |
| 2022 | IGARSS | Neural Network Model for Multi-Sensor Fusion and Inverse Mapping Dynamics for the Analysis of Significant Factors. | Gunjan Joshi, Ryo Natsuaki, Akira Hirose |
| 2022 | IGARSS | InSAR Phase Unwrapping Using Dynamics of Coupled Phase Oscillators of the Kuramoto Model. | Bungo Konishi, Akira Hirose, Ryo Natsuaki |
| 2022 | IGARSS | Proposal of PolSAR Land Classification Using Full-Learning Quaternion Convolutional Neural Networks. | Yuya Matsumoto, Ryo Natsuaki, Akira Hirose |
| 2021 | IGARSS | Emulation of a Sar Interferogram from the Past Satellites for the Present Events. | Ryo Natsuaki, Ryu Sugimoto, Chiaki Tsutsumi, Ryosuke Nakamura |
| 2021 | IGARSS | Proposal of Complex-Valued Reservoir Computing for Topographic Aspect Classification. | Bungo Konishi, Akira Hirose, Ryo Natsuaki |
| 2021 | IGARSS | Proposal of PolSAR Land Classification Using Quaternion Convolutional Neural Networks. | Yuya Matsumoto, Ryo Natsuaki, Akira Hirose |
| 2020 | IGARSS | Similarity Approach for Radio Frequency Interference Detection and Correction in Multi-Receiver SAR. | Ryo Natsuaki, Marc Jger, Pau Prats-Iraola |
| 2020 | IGARSS | Suppression of Additional Azimuth Ambiguities Under Multi-Channel and Multi-Waveform SAR. | Ryo Natsuaki, Pau Prats-Iraola |
| 2020 | IGARSS | Complex-Valued Convolutional Neural Networks in Interferometric Synthetic Aperture Radar and Their Teacher-Image Pollution Influence on the Performance. | Yuki Sunaga, Ryo Natsuaki, Akira Hirose |
| 2020 | IJCNN | Similar land-form discovery: Complex absolute-value max pooling in complex-valued convolutional neural networks in interferometric synthetic aperture radar. | Yuki Sunaga, Ryo Natsuaki, Akira Hirose |
| 2019 | IGARSS | Demonstration of InSAR-Based Three Dimensional Continuous Deformation Monitoring. | Ryo Natsuaki, Akiko Noda |
| 2019 | IGARSS | Investigations on the Optimum Combination of Azimuth Phase Coding and Up- and Down-Chirp Modulation for Range Ambiguity Suppression. | Ryo Natsuaki, Nida Sakar, Nestor Yague-Martinez, Muriel Pinheiro, Pau Prats-Iraola |
| 2019 | IGARSS | Enhancement of Polarization Mechanism in Pixel-By-Pixel Phase Optimization in Polinsar. | Yuta Otsuka, Ryo Natsuaki, Akira Hirose |
| 2019 | IGARSS | Dependence of Polarimetric Characteristics on Sar Resolutions: Experimental Analysis. | Hyunsoo Kim, Jungmin Song, Ryo Natsuaki, Akira Hirose |
| 2018 | ICONIP | Proposal of Complex-Valued Convolutional Neural Networks for Similar Land-Shape Discovery in Interferometric Synthetic Aperture Radar. | Yuki Sunaga, Ryo Natsuaki, Akira Hirose |
| 2018 | IGARSS | Profiles of RFI in Alos-2 Images - A Case Study in Tokyo Bay, Japan. | Ryo Natsuaki, Akira Hirose |
| 2018 | IGARSS | L-Band SAR Interferometric Analysis for Flood Detection in Urban Area - a Case Study in 2015 Joso Flood, Japan. | Ryo Natsuaki, Akira Hirose |
| 2018 | IGARSS | Effect of Building Orientation on Urban Flood Mapping Using Alos-2 Ampilitude Images. | Youngjoo Kwak, Ryo Natsuaki, Sang-Ho Yun |
| 2017 | IGARSS | Polarimetric characteristics of temporarily coherent RFI in alos-2 palsar-2. | Ryo Natsuaki, Takeshi Motohka, Takeo Tadono, Shinichi Suzuki |
| 2017 | IGARSS | Performance of ALOS-2 PALSAR-2 for disaster response. | Ryo Natsuaki, Masato Ohki, Hiroto Nagai, Takeshi Motohka, Takeo Tadono, Masanobu Shimada, Shinichi Suzuki |
| 2016 | IGARSS | Emergency observation and disaster monitoring performed by ALOS-2 PALSAR-2. | Ryo Natsuaki, Takeshi Motohka, Manabu Watanabe, Masato Ohki, Rajesh Bahadur Thapa, Hiroto Nagai, Takeo Tadono, Masanobu Shimada, Shinichi Suzuki |
| 2016 | IGARSS | RFI detection and removal in Range-time Azimuth-frequency domain. | Ryo Natsuaki, Manabu Watanabe, Takeshi Motohka, Shinichi Suzuki |
| 2016 | IGARSS | Trial of volcanic ash detection using L-band synthetic aperture radar (SAR). | Manabu Watanabe, Masashi Sonobe, Ryo Natsuaki, Shinichi Suzuki |
| 2016 | IGARSS | ALOS-2 operation status. | Yukihiro Kankaku, Shinichi Suzuki, Takeshi Motohka, Masato Ohki, Ryo Natsuaki, Masanobu Shimada |
| 2015 | IGARSS | Accuracy improvement by residue and amplitude based local co-registration method for ALOS-2/PALSAR-2 DInSAR. | Ryo Natsuaki, Manabu Watanabe, Takeshi Motooka, Masato Ohki, Masanobu Shimada |
| 2015 | IGARSS | Experimental analysis of singular point generation mechanisms in interferometric SAR using optics: The possibility of singular point generation by interference in a single pixel. | Shunichiro Fujinami, Ryo Natsuaki, Akira Hirose |
| 2014 | IGARSS | Changes of dominant scatterers and propagation paths as a possible origin of singular points in radar interferometry: Experimental analysis. | Ryo Natsuaki, Akira Hirose |
| 2013 | IGARSS | PHase property in complex-correlation and real-imaginary-correlation filtered SAR interferograms and its influence on DEM quality. | Ryo Natsuaki, Akira Hirose |
| 2012 | IGARSS | Improvement of ALOS interferogram quality by use of the local co-registration method using singular-point and amplitude information. | Ryo Natsuaki, Akira Hirose |
| 2011 | IGARSS | Local co-registration for distortion reduction in SAR interferogram using amplitude information - combination of SPEC method and shape-from-shading -. | Ryo Natsuaki, Akira Hirose |
| 2009 | IGARSS | Local, Nonlinear Adaptive Co-registration of Master and Slave Interferometric SAR Complex Image Data for High Quality Digital Elevation Map Generation. | Ryo Natsuaki, Akira Hirose |