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Technical evaluation demonstrates measurement of chirp errors and phase noise in FMCW radar synthesizers, indicating viable characterization using commercial oscilloscopes.
Integrated frequency-modulated continuous-wave (FMCW) radars are used in target range and velocity sensing applications[1]. In these systems, the output frequency is linearly modulated over time, typically referred to as an FMCW chirp. The key component in the integrated FMCW radar sensor is the FMCW chirp synthesizer. Most often the chirp synthesizer is implemented by using a frequency-modulated phase-locked loop (PLL).
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Renukaswamy et al. (2024) studied this question.
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