TY - GEN
T1 - Joint Positioning-Communications System Design and Experimental Demonstration
AU - Herschfelt, Andrew
AU - Yu, Hanguang
AU - Wu, Shunyao
AU - Srinivas, Sharanya
AU - Li, Yang
AU - Sciammetta, Nunzio
AU - Smith, Leslie
AU - Rueger, Klaus
AU - Lee, Hyunseok
AU - Chakrabarti, Chaitali
AU - Bliss, Daniel W.
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/9
Y1 - 2019/9
N2 - Modern radio systems must adapt to limited spectral access by reducing spectrum demand and increasing operational efficiency. We design and implement a hybrid communications, navigation, and surveillance (CNS) radio system, which simultaneously performs relative positioning and network communications in a distributed network of base-stations and unmanned aerial systems (UASs). Positioning and communications tasks are performed simultaneously with a single, co-use waveform, which efficiently utilizes a limited bandwidth allocation and limits spectrum demand of new entrants. The communications task enables applications such as distributed knowledge base, air traffic management (ATM), and distributed timing synchronization, while the positioning task enables applications such as collision avoidance and automated landing. The positioning task employs a novel time-of-flight (ToF) estimation algorithm that produces high precision (σ < 5 cm) position estimates with limited bandwidth (10 MHz). The communications task provides an encrypted data link between network nodes which enables phase-accurate timing synchronization and secures the positioning system against cyberattacks such as spoofing. Multi-antenna platforms additionally enable orientation estimation and multiple-input, multiple output (MIMO) communications. We implement this system on a consumer-off-the-shelf (COTS) experimental testbed to demonstrate the functionality of the system and verify theoretical performance limits. The experimental results demonstrate that this technology is a viable alternative positioning, navigation, and timing (APNT) system which can support increasingly dense networks and numerous applications.
AB - Modern radio systems must adapt to limited spectral access by reducing spectrum demand and increasing operational efficiency. We design and implement a hybrid communications, navigation, and surveillance (CNS) radio system, which simultaneously performs relative positioning and network communications in a distributed network of base-stations and unmanned aerial systems (UASs). Positioning and communications tasks are performed simultaneously with a single, co-use waveform, which efficiently utilizes a limited bandwidth allocation and limits spectrum demand of new entrants. The communications task enables applications such as distributed knowledge base, air traffic management (ATM), and distributed timing synchronization, while the positioning task enables applications such as collision avoidance and automated landing. The positioning task employs a novel time-of-flight (ToF) estimation algorithm that produces high precision (σ < 5 cm) position estimates with limited bandwidth (10 MHz). The communications task provides an encrypted data link between network nodes which enables phase-accurate timing synchronization and secures the positioning system against cyberattacks such as spoofing. Multi-antenna platforms additionally enable orientation estimation and multiple-input, multiple output (MIMO) communications. We implement this system on a consumer-off-the-shelf (COTS) experimental testbed to demonstrate the functionality of the system and verify theoretical performance limits. The experimental results demonstrate that this technology is a viable alternative positioning, navigation, and timing (APNT) system which can support increasingly dense networks and numerous applications.
KW - Alternative Positioning Navigation and Timing
KW - Autonomous Vehicles
KW - Communications Navigation and Surveillance
KW - Distributed Phase-Coherence
KW - Hybrid Radio Architectures
KW - RF Convergence
KW - Spectrum Sharing
KW - V2V Communications
KW - Waveform Co-Use
UR - http://www.scopus.com/inward/record.url?scp=85083304280&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85083304280&partnerID=8YFLogxK
U2 - 10.1109/DASC43569.2019.9081625
DO - 10.1109/DASC43569.2019.9081625
M3 - Conference contribution
AN - SCOPUS:85083304280
T3 - AIAA/IEEE Digital Avionics Systems Conference - Proceedings
BT - DASC 2019 - 38th Digital Avionics Systems Conference, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 38th IEEE/AIAA Digital Avionics Systems Conference, DASC 2019
Y2 - 8 September 2019 through 12 September 2019
ER -