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- Title
Microwave Passive Direction-Finding Method Based on NV Color Center in Diamond.
- Authors
Wang, Qi; Liu, Yusong; Qin, Yue; Guo, Hao; Tang, Jun
- Abstract
In this study, we established a passive direction-finding scheme based on microwave power measurement: Microwave intensity was detected using microwave-frequency proportion integration differentiation control and coherent population oscillation effect converting the change in microwave resonance peak intensity into a shift of the microwave frequency spectrum, for which the minimum microwave intensity resolution was −20 dBm. The direction angle of the microwave source was calculated using the weighted global least squares method of microwave field distribution. This lay in the 12~26 dBm microwave emission intensity range, and the measurement position was in the range of (−15°~15°). The average angle error of the angle measurement was 0.24°, and the maximum angle error was 0.48°. In this study, we established a microwave passive direction-finding scheme based on quantum precision sensing, which measures the microwave frequency, intensity, and angle in a small space and has a simple system structure, small equipment size, and low system power consumption. In this study, we provide a basis for the future application of quantum sensors in microwave direction measurements.
- Subjects
MICROWAVES; MEASUREMENT errors; MICROWAVE measurements; FREQUENCY spectra; DIAMONDS; JEWELRY stores; GATES
- Publication
Micromachines, 2023, Vol 14, Issue 4, p774
- ISSN
2072-666X
- Publication type
Article
- DOI
10.3390/mi14040774