Session
2024 Session 1
Location
Salt Lake Community College Westpointe Campus, Salt Lake City, UT
Start Date
5-6-2024 9:00 AM
Description
RF signals reflected off of a moving target experience a Doppler shift determined by the speed of the target. This can be used for target tracking, which could be useful in a variety of settings, such as using a communication signal to track a satellite, or to determine the location of a person within the space station. Although these reflections are weak compared to the signal seen from a direct path, the Doppler components can still be extracted. By processing Doppler signals from multiple receivers, the position and velocity of a target moving in the vicinity of the system can be found. This paper provides a signal model for a received OFDM signal with Doppler shifted components, and describes how the Doppler information can be found from the channel state information.
Target Position and Velocity Estimation Using Doppler Information from WiFi Signals
Salt Lake Community College Westpointe Campus, Salt Lake City, UT
RF signals reflected off of a moving target experience a Doppler shift determined by the speed of the target. This can be used for target tracking, which could be useful in a variety of settings, such as using a communication signal to track a satellite, or to determine the location of a person within the space station. Although these reflections are weak compared to the signal seen from a direct path, the Doppler components can still be extracted. By processing Doppler signals from multiple receivers, the position and velocity of a target moving in the vicinity of the system can be found. This paper provides a signal model for a received OFDM signal with Doppler shifted components, and describes how the Doppler information can be found from the channel state information.