학술논문

A Time-Frequency Modulation and Coding Scheme for Communications in the Presence of LFM Chirp Radar
Document Type
Conference
Source
2023 57th Asilomar Conference on Signals, Systems, and Computers Signals, Systems, and Computers, 2023 57th Asilomar Conference on. :202-209 Oct, 2023
Subject
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Signal Processing and Analysis
Wireless communication
Time-frequency analysis
Codes
Chirp
Simulation
Modulation
Interference
Radar/Communications coexistence
LFM chirp radar
time-frequency signaling
cross-ambiguity function
Reed-Solomon code
interference mitigation
Language
ISSN
2576-2303
Abstract
We propose a time-frequency modulation and coding scheme for wireless communication in the presence of Linear Frequency Modulation (LFM) chirp radar interference. The time-frequency modulation framework used takes advantage of the structure of LFM chirp waveforms in time-frequency. The resulting modulation scheme results in a relatively small number of interference induced errors which can be corrected with a Reed-Solomon code. We present analytical and simulation results that show the efficacy of the approach. The resulting performance shows that LFM chirp interference can be effectively mitigated with a relatively small reduction in code rate.