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Inicio  /  Drones  /  Vol: 7 Par: 1 (2023)  /  Artículo
ARTÍCULO
TITULO

Integrated Communication and Measurement System with BOC-Assisted OFDM

Xue Li    
Xiaolin Zeng and Linshan Xue    

Resumen

For unmanned aerial vehicles (UAVs), high-precision measurement and high-speed communication are necessary to realize flight and operational missions. In this paper, we propose an integrated communication and measurement system in a Doppler frequency offset environment. The system combines orthogonal frequency division multiplexing (OFDM) modulation with binary offset carrier (BOC) modulation to formulate an OFDM+BOC composite signal through power control. High-precision measurement is achieved through BOC modulation, and high data transmission is achieved through OFDM modulation. Furthermore, the high-precision Doppler frequency offset tracked by the BOC signal is adopted to assist in the demodulation of the OFDM signal. This substantially decreases the impact of the Doppler frequency offset on the OFDM signal. Moreover, the ranging error is within 10-2 10 - 2 , and the maximum Doppler frequency error is within 2 Hz.

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