Dr. Dan Shen Profile

Dr. Dan Shen

Program Manager at Intelligent Fusion Technology Inc

SPIE Involvement:

Conference Program Committee | Author

Publications (72)

Proceedings Article | 6 June 2024 Presentation + Paper

Enhanced robot state estimation using physics-informed neural networks and multimodal proprioceptive data

Yuqing Liu, Yajie Bao, Peng Cheng, Dan Shen, Genshe Chen, Hao Xu

Proceedings Volume 13062, 130620J (2024) https://doi.org/10.1117/12.3022666

KEYWORDS: Sensors, Kinematics, Neural networks, Satellite navigation systems, Matrices, Calibration, Signal filtering, Environmental sensing, Gyroscopes, Tunable filters

Read Abstract +

In this study, we introduce an innovative Robot State Estimation (RSE) methodology incorporating a learning-based contact estimation framework for legged robots, which obviates the need for external physical contact sensors. This approach integrates multimodal proprioceptive sensory data, employing a Physics-Informed Neural Network (PINN) in conjunction with an Unscented Kalman Filter (UKF) to enhance the state estimation process. The primary objective of this RSE technique is to calibrate the Inertial Measurement Unit (IMU) effectively and furnish a detailed representation of the robot’s dynamic state. Our methodology exploits the PINN to mitigate IMU drift issues by imposing constraints on the loss function via Ordinary Differential Equations (ODEs). The advantages of utilizing a contact estimator based on proprioceptive sensory data are multifold. Unlike vision-based state estimators, our proprioceptive approach is immune to visual impairments such as obscured or ambiguous environments. Moreover, it circumvents the necessity for dedicated contact sensors—components not universally present on robotic platforms and challenging to integrate without substantial hardware modifications. The contact estimator within our network is trained to discern contact events across various terrains, thereby facilitating resilient proprioceptive odometry. This enables the contact-aided invariant Kalman Filter to produce precise odometric trajectories. Subsequently, the UKF algorithm estimates the robot’s three-dimensional attitude, velocity, and position. Experimental validation of our proposed PINN-based method illustrates its capacity to assimilate data from multiple sensors, effectively reducing the influence of sensor biases by enforcing ODE constraints, all while preserving intrinsic sensor characteristics. When juxtaposed with the employment of the UKF algorithm in isolation, our integrated RSE model demonstrates superior performance in state estimation. This enhanced capability automatically reduces sensor drift impacts during operational deployment, rendering our proposed solution applicable to real-world scenarios.

Proceedings Article | 6 June 2024 Presentation + Paper

Requirements modeling of resilience-aware human-on-the-loop PNT of multiple UASs

Yajie Bao, Dan Shen, Genshe Chen, Khanh Pham, Erik Blasch

Proceedings Volume 13062, 130620E (2024) https://doi.org/10.1117/12.3023840

KEYWORDS: Navigation systems, Modeling, Spatial filtering, Satellite navigation systems, Decision making, Receivers, Situational awareness sensors, Simulations, Sensors, Error analysis

Read Abstract +

Proceedings Article | 14 June 2023 Presentation

Cross-correlation-based blind EMI Doppler estimation for a single satellite (Conference Presentation)

Dan Shen, Genshe Chen, Khanh Pham

Proceedings Volume 12546, 125460E (2023) https://doi.org/10.1117/12.2663732

KEYWORDS: Electromagnetic coupling, Doppler effect, Satellites, Signal processing, Satellite communications, Filtering (signal processing), Transmitters, Electromagnetic interference

Read Abstract +

Proceedings Article | 14 June 2023 Presentation + Paper

A radio-signal interference suppression approach based on denoising autoencoder

Hui Huang, Dan Shen, Xin Tian, Peng Cheng, Genshe Chen, Khanh Pham, Erik Blasch

Proceedings Volume 12546, 125460R (2023) https://doi.org/10.1117/12.2666242

KEYWORDS: Signal to noise ratio, Data modeling, Telecommunications, Signal processing, Education and training, Denoising, Deep learning, Tunable filters, Feature extraction, Interference (communication)

Read Abstract +

Proceedings Article | 14 June 2023 Presentation + Paper

Onboard HPA pre-distorter using machine learning and artificial intelligence for future GNSS applications

Tien Nguyen, Jose Aguilar, Charles Lee, Danny Paniagua-Rodriguez, Dan Shen, Genshe Chen, John Nguyen, Sam Behseta, Xiwen Kang, Khanh Pham

Proceedings Volume 12546, 1254605 (2023) https://doi.org/10.1117/12.2663425

KEYWORDS: Machine learning, Education and training, MATLAB, Satellites, Satellite navigation systems, Global Positioning System, Receivers, Artificial intelligence, Neural networks, Signal processing

Read Abstract +

Proceedings Article | 14 June 2023 Presentation + Paper

PID-based automatic gain control for satellite transponder under partial-time partial-band AWGN jamming

Yajie Bao, Peng Cheng, Khanh Pham, Eric Blasch, Dan Shen, Xin Tian, Genshe Chen

Proceedings Volume 12546, 125460A (2023) https://doi.org/10.1117/12.2681260

KEYWORDS: Transponders, Simulations, Satellites, Automatic control, Interference (communication), Error analysis, Satellite communications, Performance modeling, Analytical research

Read Abstract +

Proceedings Article | 8 June 2022 Presentation + Paper

Data fusion information group (DFIG) model meets AI+ML

Erik Blasch, Nichole Sullivan, Genshe Chen, Yu Chen, Dan Shen, Wei Yu, Hua-Mei Chen

Proceedings Volume 12122, 121220N (2022) https://doi.org/10.1117/12.2619624

KEYWORDS: Sensors, Data modeling, Data fusion, Information fusion, Artificial intelligence, Systems modeling, Machine learning, Data processing, Radar, Statistical analysis

Read Abstract +

Proceedings Article | 3 June 2022 Presentation + Paper

Space track ontology elements for space domain awareness

Erik Blasch, Genshe Chen, Dan Shen, Carlos Insaurralde, Khanh Pham

Proceedings Volume 12121, 121210A (2022) https://doi.org/10.1117/12.2619580

KEYWORDS: Target recognition, Target detection, Intelligence systems, Information security, Information fusion

Read Abstract +

Proceedings Article | 12 April 2021 Presentation + Paper

Three-dimensional convolutional neural network (3D-CNN) for satellite behavior discovery

Dan Shen, Carolyn Sheaff, Mengqing Guo, Erik Blasch, Khanh Pham, Genshe Chen

Proceedings Volume 11755, 117550C (2021) https://doi.org/10.1117/12.2589044

KEYWORDS: Satellites, Convolutional neural networks, Warfare, Strategic intelligence, Sensors, Performance modeling, Data hiding, 3D modeling

Read Abstract +

Proceedings Article | 12 April 2021 Presentation + Paper

Multisource AI scorecard table analysis of AMIGO

Erik Blasch, Dan Shen, Genshe Chen, James Sung

Proceedings Volume 11755, 117550B (2021) https://doi.org/10.1117/12.2588036

KEYWORDS: Situational awareness sensors

Read Abstract +

Proceedings Article | 18 May 2020 Presentation + Paper

Test and evaluation needs of multi-domain autonomous systems

Erik Blasch, Yu Chen, Dan Shen, Genshe Chen

Proceedings Volume 11413, 1141308 (2020) https://doi.org/10.1117/12.2559031

KEYWORDS: Data modeling, Systems modeling, Unmanned aerial vehicles, Analytics, Data fusion, Standards development, Radar, Safety, Computer security, Motion models

Read Abstract +

Proceedings Article | 18 May 2020 Presentation + Paper

Enhanced GANs for satellite behavior discovery

Dan Shen, Carolyn Sheaff, Mengqing Guo, Erik Blasch, Khanh Pham, Genshe Chen

Proceedings Volume 11422, 114220F (2020) https://doi.org/10.1117/12.2560546

KEYWORDS: Gallium nitride, Data modeling, Satellites, Network architectures, Sensors, Space operations, Performance modeling, Binary data, Situational awareness sensors, Solar radiation models

Read Abstract +

Proceedings Article | 27 April 2020 Presentation + Paper

Hybrid blockchain-enabled secure microservices fabric for decentralized multi-domain avionics systems

Ronghua Xu, Yu Chen, Erik Blasch, Alexander Aved, Genshe Chen, Dan Shen

Proceedings Volume 11422, 114220J (2020) https://doi.org/10.1117/12.2559036

KEYWORDS: Data modeling, Avionic systems, Computer security, Network security, Sensors, Systems modeling, Control systems, Information fusion, Space operations, Computer architecture

Read Abstract +

Proceedings Article | 29 July 2019 Presentation + Paper

Deep learning based automatic signal modulation classification

Jingyang Lu, Yi Li, Genshe Chen, Dan Shen, Xin Tian, Khanh Pham

Proceedings Volume 11017, 110170M (2019) https://doi.org/10.1117/12.2520544

KEYWORDS: Modulation, Signal processing, Neural networks, Signal generators, Machine learning, Cognitive modeling, Modulators, Neurons, Data modeling, Convolution

Read Abstract +

Proceedings Article | 29 July 2019 Presentation + Paper

Adaptive markov inference game optimization (AMIGO) for rapid Discovery of satellite behaviors

Dan Shen, Carolyn Sheaff, Jingyang Lu, Genshe Chen, Erik Blasch, Khanh Pham

Proceedings Volume 11017, 1101708 (2019) https://doi.org/10.1117/12.2520755

KEYWORDS: Satellites, Sensors, Data modeling, Machine learning, Earth observing sensors, Neurons, Data fusion, Stochastic processes, Neural networks, Situational awareness sensors

Read Abstract +

Proceedings Article | 29 July 2019 Presentation + Paper

SDR based secure communication system with novel noise modulated transmission

Xin Tian, Wenhao Xiong, Zhonghai Wang, Dan Shen, Nichole Sullivan, Genshe Chen, Khanh Pham

Proceedings Volume 11017, 110170H (2019) https://doi.org/10.1117/12.2520671

KEYWORDS: Interference (communication), Modulation, Receivers, Antennas, Signal processing, Electronic filtering, Filtering (signal processing), Signal detection, Telecommunications, Transmitters

Read Abstract +

Proceedings Article | 29 July 2019 Paper

Autonomy in use for space situation awareness

Erik Blasch, Dan Shen, Bin Jia, Zhonghai Wang, Genshe Chen, Yu Chen, Khanh Pham

Proceedings Volume 11017, 1101707 (2019) https://doi.org/10.1117/12.2519212

KEYWORDS: Satellites, Data modeling, Information fusion, Sensors, Satellite communications, Meteorological satellites, Systems modeling, Satellite navigation systems, Control systems, Environmental sensing

Read Abstract +

Proceedings Article | 29 July 2019 Presentation + Paper

An effective satellite transponder linearization method using a physics-based predistorter

Lun Li, John Nguyen, Jingyang Lu, Dan Shen, Xin Tian, Genshe Chen, Khanh Pham

Proceedings Volume 11017, 110170G (2019) https://doi.org/10.1117/12.2520482

KEYWORDS: Transponders, Satellites, Modulation, Data modeling, Performance modeling, Amplifiers, Machine learning, Telecommunications, Interference (communication), Model-based design

Read Abstract +

SPIE Journal Paper | 21 January 2019 Open Access

Diffusion-based cooperative space object tracking

Bin Jia, Khanh Pham, Erik Blasch, Genshe Chen, Dan Shen

OE, Vol. 58, Issue 04, 041607, (January 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.4.041607

KEYWORDS: Sensors, Diffusion, Electronic filtering, Detection and tracking algorithms, Filtering (signal processing), Optical engineering, Nonlinear filtering, Electro optical sensors, Space sensors, Electroluminescence

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 10 May 2018 Presentation + Paper

A robotic orbital emulator with lidar-based SLAM and AMCL for multiple entity pose estimation

Dan Shen, Xingyu Xiang, Bin Jia, Zhonghai Wang, Genshe Chen, Erik Blasch, Khanh Pham

Proceedings Volume 10641, 106410E (2018) https://doi.org/10.1117/12.2304878

KEYWORDS: Satellites, Robotics, Sensors, Control systems, LIDAR, Particles, Space robots, Kinematics, Monte Carlo methods

Read Abstract +

Proceedings Article | 2 May 2018 Presentation + Paper

Investigation of the dynamic enhanced cubature Kalman filter

Bin Jia, Khanh Pham, Erik Blasch, Genshe Chen, Dan Shen

Proceedings Volume 10641, 1064109 (2018) https://doi.org/10.1117/12.2305203

KEYWORDS: Filtering (signal processing), Nonlinear filtering, Monte Carlo methods, Electronic filtering, Complex systems, Linear filtering, Dynamical systems, Particle filters, Sensors, Stochastic processes

Read Abstract +

Proceedings Article | 2 May 2018 Presentation + Paper

Intelligent path loss prediction engine design using machine learning in the urban outdoor environment

Ruichen Wang, Jingyang Lu, Yiran Xu, Dan Shen, Genshe Chen, Khanh Pham, Erik Blasch

Proceedings Volume 10641, 106410J (2018) https://doi.org/10.1117/12.2305204

KEYWORDS: Machine learning, Transmitters, Data modeling, Radio propagation, Receivers, Feature selection, Signal processing, Antennas, Non-line-of-sight propagation

Read Abstract +

Proceedings Article | 2 May 2018 Presentation + Paper

DDDAS for space applications

Erik Blasch, Khanh Pham, Dan Shen, Genshe Chen

Proceedings Volume 10641, 1064108 (2018) https://doi.org/10.1117/12.2303936

KEYWORDS: Data modeling, Satellites, Sensors, Systems modeling, Visualization, Remote sensing, Meteorological satellites, Data processing, Atmospheric modeling, Satellite communications

Read Abstract +

Proceedings Article | 18 May 2017 Presentation + Paper

An orbital emulator for pursuit-evasion game theoretic sensor management

Dan Shen, Tao Wang, Gang Wang, Bin Jia, Zhonghai Wang, Genshe Chen, Erik Blasch, Khanh Pham

Proceedings Volume 10196, 101960D (2017) https://doi.org/10.1117/12.2266606

KEYWORDS: 3D modeling, Motion models, Operating systems, Algorithms, Visualization, Robots, Satellites, Sensors, Situational awareness sensors, Robotics, Optical sensors, Radar sensor technology, Radar, LIDAR, Space robots

Read Abstract +

Proceedings Article | 5 May 2017 Paper

Joint sparsity based heterogeneous data-level fusion for target detection and estimation

Ruixin Niu, Peter Zulch, Marcello Distasio, Erik Blasch, Dan Shen, Genshe Chen

Proceedings Volume 10196, 101960E (2017) https://doi.org/10.1117/12.2266072

KEYWORDS: Video, Image fusion, Cameras, Signal detection, Video surveillance, Signal processing, Image sensors, Sensors, Data fusion, Target detection

Read Abstract +

Proceedings Article | 5 May 2017 Presentation + Paper

Cooperative angle-only orbit initialization via fusion of admissible areas

Bin Jia, Khanh Pham, Erik Blasch, Genshe Chen, Dan Shen, Zhonghai Wang

Proceedings Volume 10196, 101960C (2017) https://doi.org/10.1117/12.2265971

KEYWORDS: Sensors, Space sensors, Personal digital assistants, Error analysis, Radar, Electro optics, Electro optical sensors, Filtering (signal processing), Nonlinear filtering, Situational awareness sensors, Surveillance, Gaussian filters, Detection and tracking algorithms

Read Abstract +

Proceedings Article | 5 May 2017 Presentation + Paper

Machine learning based Intelligent cognitive network using fog computing

Jingyang Lu, Lun Li, Genshe Chen, Dan Shen, Khanh Pham, Erik Blasch

Proceedings Volume 10196, 101960G (2017) https://doi.org/10.1117/12.2266563

KEYWORDS: Fiber optic gyroscopes, Clouds, Signal detection, Signal processing, Telecommunications, Sensing systems, Cognitive modeling, Feature extraction, Computing systems, Machine learning

Read Abstract +

Proceedings Article | 17 May 2016 Paper

On resilience studies of system detection and recovery techniques against stealthy insider attacks

Sixiao Wei, Hanlin Zhang, Genshe Chen, Dan Shen, Wei Yu, Khanh Pham, Erik Blasch, Jose Cruz

Proceedings Volume 9838, 98380G (2016) https://doi.org/10.1117/12.2225409

KEYWORDS: Computer security, Information security, Network security, Defense and security, Web services, Data fusion, Defense systems, Sensors, Data modeling, Systems modeling

Read Abstract +

Proceedings Article | 17 May 2016 Paper

An airborne low SWaP-C UAS sense and avoid system

Zhonghai Wang, Xingping Lin, Xingyu Xiang, Erik Blasch, Khanh Pham, Genshe Chen, Dan Shen, Bin Jia, Gang Wang

Proceedings Volume 9838, 98380C (2016) https://doi.org/10.1117/12.2227221

KEYWORDS: Signal to noise ratio, Transmitters, Radar, Receivers, Antennas, Signal detection, Target detection, Radar, Sensors, Error analysis, Radar signal processing

Read Abstract +

Proceedings Article | 17 May 2016 Paper

Cyber security with radio frequency interferences mitigation study for satellite systems

Gang Wang, Sixiao Wei, Genshe Chen, Xin Tian, Dan Shen, Khanh Pham, Tien Nguyen, Erik Blasch

Proceedings Volume 9838, 98380K (2016) https://doi.org/10.1117/12.2224632

KEYWORDS: Satellites, Information security, Satellite navigation systems, Telecommunications, Satellite communications, Network security, Electromagnetic coupling, Computer security, Forward error correction, Receivers

Read Abstract +

Proceedings Article | 13 May 2016 Paper

SINR estimation for SATCOM in the environment with jamming signals

Lun Li, Gang Wang, Xin Tian, Dan Shen, Khanh Pham, Erik Blasch, Genshe Chen

Proceedings Volume 9838, 98380P (2016) https://doi.org/10.1117/12.2225153

KEYWORDS: Satellites, Phase shift keying, Systems modeling, Error analysis, Computer simulations, Satellite communications, Telecommunications, Interference (communication), Signal to noise ratio, Lithium

Read Abstract +

Proceedings Article | 13 May 2016 Paper

A satellite orbital testbed for SATCOM using mobile robots

Dan Shen, Wenjie Lu, Zhonghai Wang, Bin Jia, Gang Wang, Tao Wang, Genshe Chen, Erik Blasch, Khanh Pham

Proceedings Volume 9838, 98380M (2016) https://doi.org/10.1117/12.2225412

KEYWORDS: Robots, Satellites, Mobile robots, LIDAR, Satellite communications, Satellite communications, Robotics, Kinematics, Visualization, Motion models, Transceivers

Read Abstract +

Proceedings Article | 13 May 2016 Paper

Mitigation of weather on channel propagation for satellite communications

Zhihui Shu, Xin Tian, Gang Wang, Dan Shen, Khanh Pham, Erik Blasch, Genshe Chen

Proceedings Volume 9838, 98380J (2016) https://doi.org/10.1117/12.2224639

KEYWORDS: Satellite communications, Meteorology, Signal attenuation, Ka band, X band, Receivers, Satellites, Signal to noise ratio, Antennas, Systems modeling

Read Abstract +