Soil moisture retrieval under vegetation using dual polarized PALSAR data. - Christian N. Koyama; Karl Schneider (IGARSS, 2011)

Vegetation effects on L-band soil moisture retrieval - Lessons learned from 5 years of ALOS PALSAR observations. - Christian N. Koyama; Karl Schneider (IGARSS, 2012)

Estimation of soil moisture and debris pile volume from Pi-SAR2X and Pi-SAR-L2 square-flight data. - Christian N. Koyama; Motoyuki Sato (IGARSS, 2014)

Investigation on near range SAR for inspecting inner structure of buildings. - Motoyuki Sato; Kazunori Takahashi; Hai Liu 002; Christian N. Koyama (IGARSS, 2014)

Urban damage mapping using scattering mechanism investigation technique for fully polarimetric SAR data. - Si-Wei Chen 001; Yongzhen Li 001; Xuesong Wang 003; Christian N. Koyama; Motoyuki Sato (IGARSS, 2015)

Full polarimetric UWB GB-SAR for damage assessment of wooden building structures. - Christian N. Koyama; Yasushi Iitsuka; Kazunori Takahashi; Motoyuki Sato (IGARSS, 2015)

Development of a biomass corrected soil moisture retrieval model for dual-polarization ALOS-2 data based on ALOS/PALSAR and PI-SAR-L2 observations. - Christian N. Koyama; Karl Schneider; Motoyuki Sato (IGARSS, 2015)

Post-Earthquake Damage Inspection of Wood-Frame Buildings by a Polarimetric GB-SAR System. - Hai Liu 002; Christian N. Koyama; Jinfeng Zhu; Qing Huo Liu; Motoyuki Sato (Remote. Sens., 2016)

The effect of precipitation and soil moisture variations on (partial) polarimetric L-band SAR backscatter in tropical forest regions. - Christian N. Koyama; Manabu Watanabe; Masato Hayashi; Masanobu Shimada (IGARSS, 2017)

Development of early-stage deforestation detection algorithm (advanced) with PALSAR-2/ScanSAR for JICA-JAXA program (JJ-FAST). - Manabu Watanabe; Christian N. Koyama; Masato Hayashi; Yutaka Kaneko; Masanobu Shimada (IGARSS, 2017)

Polarimetric characteristics of L-band SAR images of early-stage deforestation areas. - Manabu Watanabe; Christian N. Koyama; Masanobu Shimada (IGARSS, 2017)

Development of Multistatic Linear Array Radar at 10-20GHz. - Yasunari Mori; Takayoshi Yumii; Yumi Asano; Kyouji Doi; Christian N. Koyama; Yasushi Iitsuka; Kazunori Takahashi; Motoyuki Sato (IEICE Trans. Electron., 2017)

In-Situ Measurement of Soil Permittivity at Various Depths for the Calibration and Validation of Low-Frequency SAR Soil Moisture Models by Using GPR. - Christian N. Koyama; Hai Liu 002; Kazunori Takahashi; Masanobu Shimada; Manabu Watanabe; Tseedulam Khuut; Motoyuki Sato (Remote. Sens., 2017)

Monitoring of Soil Moisture Dynamics in the Semi-Arid Tropics by Means of ALOS-2/PALSAR-2 Dual-Polarization ScanSAR Data. - Christian N. Koyama; Manabu Watanabe; Masanobu Shimada (IGARSS, 2018)

Forest Early Warning System Using ALOS-2/PALSAR-2 Scansar Data (JJ-FAST). - Izumi Nagatani; Masato Hayashi; Manabu Watanabe; Takeo Tadano; Tomohiro Watanabe; Christian N. Koyama; Masanobu Shimada (IGARSS, 2018)

Semi-Automatic Deforestation Detection Algorithm with PALSAR-2/ScanSAR HH/HV Polarizations. - Manabu Watanabe; Christian N. Koyama; Masato Hayashi; Izumi Nagatani; Takeo Tadono; Masanobu Shimada (IGARSS, 2018)

Calibration Method for Multi Static Linear Array Radar with One Dimensional Array Antenna Arranged in Staggered Manner. - Yasunari Mori; Takayoshi Yumii; Yumi Asano; Kyouji Doi; Christian N. Koyama; Yasushi Iitsuka; Kazunori Takahashi; Motoyuki Sato (IEICE Trans. Electron., 2018)

Early-Stage Deforestation Detection in the Tropics With L-band SAR. - Manabu Watanabe; Christian N. Koyama; Masato Hayashi; Izumi Nagatani; Masanobu Shimada (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2018)

Advanced Polarimetric Stereo-Sar for Tsunami Debris Estimation and Disaster Mitigation. - Christian N. Koyama; Shunichi Koshimura; Motoyuki Sato (IGARSS, 2019)

Mapping Spatial-Temporal Forest Heterogeneity in the Tropical Belt by ALOS-2/PALSAR-2 Big Data Analysis. - Christian N. Koyama; Manabu Watanabe; Masanobu Shimada (IGARSS, 2019)

Pixel-Based Deforestation Detection Algorithm for ALOS-2/PALSAR-2. - Izumi Nagatani; Masato Hayashi; Manabu Watanabe; Takeo Tadono; Tomohiro Watanabe; Christian N. Koyama; Masanobu Shimada (IGARSS, 2019)

Improvement of Deforestation Detection Algorithms Used In JJ-FAST. - Manabu Watanabe; Christian N. Koyama; Masato Hayashi; Izumi Nagatani; Takeo Tadono; Masanobu Shimada (IGARSS, 2019)

Rainfall-Induced Changes in L-Band Backscatter Over Tropical Forests and Their Impact on Deforestation Monitoring. - Christian N. Koyama; Manabu Watanabe; Masato Hayashi; Izumi Nagatani; Takeo Tadono; Masanobu Shimada (IGARSS, 2020)

Seasonal Change Analysis for ALOS-2 PALSAR-2 Deforestation Detection. - Izumi Nagatani; Masato Hayashi; Manabu Watanabe; Takeo Tadono; Tomohiro Watanabe; Christian N. Koyama; Masanobu Shimada (IGARSS, 2020)

Trial of Deforestation Detection by Using 25M Resolution PALSAR-2/ScanSAR Data. - Manabu Watanabe; Christian N. Koyama; Masato Hayashi; Izumi Nagatani; Takeo Tadono; Masanobu Shimada (IGARSS, 2020)

Improving L-Band SAR Forest Monitoring by Big Data Deep Learning Based on ALOS-2 5 Years Pan-Tropical Observations. - Christian N. Koyama; Manabu Watanabe; Edson Eyji Sano; Masato Hayashi; Izumi Nagatani; Takeo Tadono; Masanobu Shimada (IGARSS, 2021)

Trial of Detection Accuracies Improvement for JJ-FAST Deforestation Detection Algorithm Using Deep Learning. - Manabu Watanabe; Christian N. Koyama; Masato Hayashi; Izumi Nagatani; Takeo Tadono; Masanobu Shimada (IGARSS, 2021)

Comparative Analysis of the Global Forest/Non-Forest Maps Derived from SAR and Optical Sensors. Case Studies from Brazilian Amazon and Cerrado Biomes. - Edson Eyji Sano; Paola Rizzoli; Christian N. Koyama; Manabu Watanabe; Marcos Adami; Yosio Edemir Shimabukuro; Gustavo Bayma; Daniel M. Freitas (Remote. Sens., 2021)

Advancements in Global Forest Monitoring Research Founded on ALOS-2 Long-Term Pantropical Land Observation. - Christian N. Koyama; Manabu Watanabe; Masato Hayashi; Masanobu Shimada; Kazufumi Kobayashi; Takeo Tadono (IGARSS, 2022)

Next-Generation L-Band SAR Deforestation Detection for Operational Forest Early Warning in the Tropics. - Christian N. Koyama; Masanobu Shimada; Kazufumi Kobayashi; Masato Hayashi; Takeo Tadono (IGARSS, 2023)

Achievements of the ALOS-2 L-Band SAR Long-Term Pantropical Forest Monitoring Mission. - Christian N. Koyama; Masanobu Shimada; Kazufumi Kobayashi; Manabu Watanabe; Ake Rosenqvist; Masato Hayashi; Tsutomu Yamanokuchi; Takeo Tadono (IGARSS, 2023)