Jonathan Platt, Yang-Ki Hong, H. Won, Olakunle Olaniyan, Minyeong Choi, Joohan Lee
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Simulation of FMCW and M-Sequence Ground Penetrating Radar Systems
This paper compares the usage of frequency modulated-continuous wave (FMCW) and m-sequence modulation in a ground-penetrating radar scenario. The two radars share a common front-end operating in the 1 to 2 GHz band with a 0 dBm transmitter and a receiver with a noise floor of -60 dBm. The two methods are compared based on their resolution and maximum detectable range. These parameters are examined considering one, four, and ten responses averaged for approximating the impulse response and target range. The simulation results show that even though the FMCW ground penetrating radar (GPR) offers two times higher resolution and maximum detectable range for a single response, the m-sequence GPR becomes superior when considering the average of 10 responses.
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