Improvement of 3D radar backscatter model by matrix-doubling methods. - Wenjian Ni; Zhifeng Guo; Guoqing Sun; Fang Wang (IGARSS, 2007)

The Potential of Combined Lidar and SAR Data in Retrieving Forest Parameters using Model Analysis. - Zhifeng Guo; Guoqing Sun; K. Jon Ranson; Wenjian Ni; Wenhan Qin (IGARSS (5), 2008)

Effect of Forest Structure on Scattering Center Height from Model and SAR Data. - Wenjian Ni; Guoqing Sun; Zhifeng Guo; Wenhan Qin (IGARSS (5), 2008)

Analysis of the Effect of Crown Structure Changes on Backscattering Coefficient using Modeling and SAR Data. - Zhifeng Guo; Wenjian Ni; Guoqing Sun (IGARSS (4), 2009)

Characterization of Soil Surface Roughness from Terrestrial Laser Scanner Data. - Wenjian Ni; Guoqing Sun; Zhifeng Guo; Yong Pang (IGARSS (2), 2009)

Forest Parameter Mapping based on Lidar and SAR Data. - Zhiyu Zhang 001; Lixin Zhang 001; Wenjian Ni; Zhifeng Guo; Guoqing Sun (IGARSS (5), 2009)

Forest biomass estimation in northeastern China using ALOS PALSAR data combined radiative transfer model. - Zhifeng Guo; Wenjian Ni; Guoqing Sun (IGARSS, 2010)

Investigation of forest height retrieval using SRTM-DEM and ASTER-GDEM. - Wenjian Ni; Zhifeng Guo; Guoqing Sun; Hong Chi (IGARSS, 2010)

Simulation studies on data fusion algorithms for forest structure from lidar and SAR data. - Matthew Sun; Wenjian Ni; K. Jon Ranson (IGARSS, 2010)

The annual behavior of backscattering and coherence of PALSAR data. - Wenjian Ni; Zhifeng Guo; Zhiyu Zhang 001; Guoqing Sun (IGARSS, 2011)

Biomass retrieval based on polarimetric target decomposition. - Zhiyu Zhang 001; Yong Wang 011; Guoqing Sun; Wenjian Ni; Wenli Huang; Lixin Zhang 001 (IGARSS, 2011)

Mapping forest above-ground biomass and its changes from LVIS waveform data. - Wenli Huang; Guoqing Sun; Ralph Dubayah; Zhiyu Zhang 001; Wenjian Ni (IGARSS, 2012)

Semi-automatic extraction of digital surface model using ALOS/PRISM data with ENVI. - Wenjian Ni; Zhifeng Guo; Zhiyu Zhang 001; Guoqing Sun; Wenli Huang (IGARSS, 2012)

Evaluation of different methods for forest regional biomass mapping from UAVSAR data. - Zhiyu Zhang 001; Xingling Wang; Wenjian Ni; Guoqing Sun; Wenli Huang; Zhifeng Guo (IGARSS, 2012)

Sensitivity of multi-source SAR backscatter to changes of forest aboveground biomass. - Wenli Huang; Guoqing Sun; Zhiyu Zhang 001; Wenjian Ni (IGARSS, 2013)

The characterization of digital surface model from stereo imagery over vegetated areas. - Wenjian Ni; Zhiyu Zhang 001; Zhifeng Guo; Guoqing Sun (IGARSS, 2013)

Retrieval of forest biophysical parameters using physically-based algorithms. - Guoqing Sun; Wenjian Ni; Forrest G. Hall; Jeffrey G. Masek; Temilola Fatoyinbo; Derek R. Peddle (IGARSS, 2013)

Retrieval of Forest Biomass From ALOS PALSAR Data Using a Lookup Table Method. - Wenjian Ni; Guoqing Sun; Zhifeng Guo; Zhiyu Zhang 001; Yating He; Wenli Huang (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2013)

The synergy of ALOS/PRISM and ALOS/PALSAR for the mapping of forest height. - Wenjian Ni; Guoqing Sun; Zhiyu Zhang 001 (IGARSS, 2014)

Forest parameters estimation from SAR and Landsat data using look-up table inversion. - Guoqing Sun; Forrest G. Hall; Wenjian Ni; Kun Fang; Jeffrey G. Masek; Temilola Fatoyinbo; Derek R. Peddle; Thomas Hilker (IGARSS, 2014)

Co-Registration of Two DEMs: Impacts on Forest Height Estimation From SRTM and NED at Mountainous Areas. - Wenjian Ni; Guoqing Sun; Zhiyu Zhang 001; Zhifeng Guo; Yating He (IEEE Geosci. Remote. Sens. Lett., 2014)

A Heuristic Approach to Reduce Atmospheric Effects in InSAR Data for the Derivation of Digital Terrain Models or for the Characterization of Forest Vertical Structure. - Wenjian Ni; Guoqing Sun; Zhiyu Zhang 001; Yating He; Zhifeng Guo (IEEE Geosci. Remote. Sens. Lett., 2014)

The Penetration Depth Derived from the Synthesis of ALOS/PALSAR InSAR Data and ASTER GDEM for the Mapping of Forest Biomass. - Wenjian Ni; Zhiyu Zhang 001; Guoqing Sun; Zhifeng Guo; Yating He (Remote. Sens., 2014)

Model-Based Analysis of the Influence of Forest Structures on the Scattering Phase Center at L-Band. - Wenjian Ni; Guoqing Sun; Kenneth Jon Ranson; Zhiyu Zhang 001; Yating He; Wenli Huang; Zhifeng Guo (IEEE Trans. Geosci. Remote. Sens., 2014)

Evaluation of UAV-based forest inventory system compared with LiDAR data. - Wenjian Ni; Jianli Liu; Zhiyu Zhang 001; Guoqing Sun; Aqiang Yang (IGARSS, 2015)

Characterization of ASTER GDEM elevation data over vegetated area compared with lidar data. - Wenjian Ni; Guoqing Sun; Kenneth Jon Ranson (Int. J. Digit. Earth, 2015)

National Forest Aboveground Biomass Mapping from ICESat/GLAS Data and MODIS Imagery in China. - Hong Chi; Guoqing Sun; Jinliang Huang; Zhifeng Guo; Wenjian Ni; Anmin Fu (Remote. Sens., 2015)

Sensitivity of Multi-Source SAR Backscatter to Changes in Forest Aboveground Biomass. - Wenli Huang; Guoqing Sun; Wenjian Ni; Zhiyu Zhang 001; Ralph Dubayah (Remote. Sens., 2015)

Modeling radar backscattering of complex terrain at the landscape scale for retrieving forest structure parameters. - Wenjian Ni; Guoqing Sun; Zhiyu Zhang 001; Haoyang Yu (IGARSS, 2016)

Retrieval of forest aboveground biomass through the synergy of X-band (TeraSAR-X/TandDEM-X) and L-band (PALSAR-2) InSAR data. - Wenjian Ni; Guoqing Sun; Zhiyu Zhang 001; Huina Yu (IGARSS, 2016)

Estimation of Forest Aboveground Biomass in Changbai Mountain Region Using ICESat/GLAS and Landsat/TM Data. - Hong Chi; Guoqing Sun; Jinliang Huang; Rendong Li; Xianyou Ren; Wenjian Ni; Anmin Fu (Remote. Sens., 2017)

A 3-D Joint Simulation Platform for Multiband Remote Sensing. - Yang Zhang; Qinhuo Liu; Longfei Tan; Huaguo Huang; Wenjian Ni; Tiangang Yin; Wenhan Qin; Guoqing Sun (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017)

Integrated Analyses of PALSAR and Landsat Imagery Reveal More Agroforests in a Typical Agricultural Production Region, North China Plain. - Zhiqi Yang; Jinwei Dong; Yuanwei Qin; Wenjian Ni; Guosong Zhao; Wei Chen 123; Bangqian Chen; Weili Kou; Jie Wang 017; Xiangming Xiao (Remote. Sens., 2018)

Mapping Three-Dimensional Structures of Forest Canopy Using UAV Stereo Imagery: Evaluating Impacts of Forward Overlaps and Image Resolutions With LiDAR Data as Reference. - Wenjian Ni; Guoqing Sun; Yong Pang; Zhiyu Zhang 001; Jianli Liu; Aqiang Yang; Yao Wang; Dafeng Zhang (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2018)

Modeling Interferometric SAR Features of Forest Canopies Over Mountainous Area at Landscape Scales. - Wenjian Ni; Zhiyu Zhang 001; Guoqing Sun; Qinhuo Liu (IEEE Trans. Geosci. Remote. Sens., 2018)

The Potential of Forest Biomass Inversion Based on Canopy-Independent Structure Metrics Tested by Airborne LiDAR Data. - Qiang Wang 004; Wenge Ni-Meister; Wenjian Ni; Yong Pang (IGARSS, 2019)

LandRS: a Virtual Constellation Simulator for InSAR, LiDAR Waveform and Stereo Imagery Over Mountainous Forest Landscapes. - Wenjian Ni; Guoqing Sun; Kenneth Jon Ranson; Paul M. Montesano; Qinhuo Liu; Zengyuan Li; Vyacheslav I. Kharuk; Zhiyu Zhang 001 (IGARSS, 2019)

Synthesis of Leaf-on and Leaf-off Unmanned Aerial Vehicle (UAV) Stereo Imagery for the Inventory of Aboveground Biomass of Deciduous Forests. - Wenjian Ni; Jiachen Dong; Guoqing Sun; Zhiyu Zhang 001; Yong Pang; Xin Tian 005; Zengyuan Li; Erxue Chen (Remote. Sens., 2019)

Modeling the Stereoscopic Features of Mountainous Forest Landscapes for the Extraction of Forest Heights from Stereo Imagery. - Wenjian Ni; Zhiyu Zhang 001; Guoqing Sun; Qinhuo Liu (Remote. Sens., 2019)

Estimation of Forest Leaf Area Index Using Height and Canopy Cover Information Extracted From Unmanned Aerial Vehicle Stereo Imagery. - Dafeng Zhang; Jianli Liu; Wenjian Ni; Guoqing Sun; Zhiyu Zhang 001; Qinhuo Liu; Qiang Wang 004 (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2019)

A Novel Azimuth Discrete Periodic Phase Coding Method for MIMO SAR. - Kun Li; Jie Wang 018; Longyong Chen; Wenjian Ni; Zheng Lv; Lei Liu 046; Mingming Xu; Jianbo Du; Zhibin Wang; Jie Liu; Qingjun Zhang (IGARSS, 2020)

Regional Forest Mapping over Mountainous Areas in Northeast China Using Newly Identified Critical Temporal Features of Sentinel-1 Backscattering. - Haoyang Yu; Wenjian Ni; Zhongjun Zhang 001; Guoqing Sun; Zhiyu Zhang 001 (Remote. Sens., 2020)

Model Based Analysis for the Extraction of Forest Stand Information Based on Texture of High-Resolution Optical Remote Sensing Images. - Jie Wang; Wenjian Ni; Zhiyu Zhang 001; Zhifeng Guo; Tianyu Yu 004; Guoqing Sun (IGARSS, 2024)

An Optimization Method for GEDI Ground Determination in Dense Tropical Forests with Potential Penetration Limitations. - Tianyu Yu 004; Wenjian Ni; Jie Wang; Zhiyu Zhang 001; Zhifeng Guo; Guoqing Sun (IGARSS, 2024)

Forest terrain and canopy height estimation using stereo images and spaceborne LiDAR data from GF-7 satellite. - Liming Du; Yong Pang; Wenjian Ni; Xiaojun Liang; Zengyuan Li; Juan Suárez 001; Wei Wei (Geo spatial Inf. Sci., 2024)