Results 1 to 10 of about 1,158,144 (165)
Frequency-Domain Detection for Frequency-Division Multiplexing QEPAS
Sensors, 2022 To achieve multi-gas measurements of quartz-enhanced photoacoustic spectroscopy (QEPAS) sensors under a frequency-division multiplexing mode with a narrow modulation frequency interval, we report a frequency-domain detection method. A CH4 absorption line
Xiang Chen +6 more
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Drone Component for Radio Frequency Detection [PDF]
Interdisciplinary Description of Complex Systems, 2022 Recovering people who have lost their way during a hike or disappeared during a disaster is a significant task for disaster management agencies. Nowadays, there are numerous technological devices at our disposal in such cases.
Péter Miksa Hell, Péter János Varga
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High-Accuracy Phase Frequency Detection Technology Based on BDS Time and Frequency Signals [PDF]
SensorsFor the time and frequency signals of Beidou satellites, a high-accuracy phase frequency detection technology based on phase group synchronization is proposed.
Baoqiang Du, Lanqin Tan
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BaSAR-A tool in R for frequency detection.
Biosystems, 2012 Many biological processes are periodic, for example cell cycle expression, circadian rhythms and calcium oscillations. However, measured time series from these processes are commonly short and noisy, and finding frequencies in such data can be challenging.
Granqvist E, Hartley M, Morris RJ.
europepmc +3 more sources
Complex frequency detection in a subsystem
Communications PhysicsNon-Hermitian physics, such as the non-Hermitian skin effect (NHSE), is well-established in classical platforms, but its emergence in intrinsically Hermitian or quantum systems remains a key challenge.
Juntao Huang, Jiangping Hu, Zhesen Yang
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SDR-Implemented Passive Bistatic SAR System Using Sentinel-1 Signal and Its Experiment Results
Remote Sensing, 2022 A fixed-receiver mobile-transmitter passive bistatic synthetic aperture radar (MF-PB-SAR) system, which uses the Sentinel-1 SAR satellite as its non-cooperative emitting source, has been developed by using embedded software-defined radio (SDR) hardware ...
Weike Feng +2 more
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Journal of Medical Signals and Sensors, 2021 Despite the considerable improvement of the common-mode rejection ratio of digital filtering techniques, the electrocardiogram (ECG) traces recorded by commercialized devices are still contaminated by residual power line interference (PLI). In this study,
Anis Ben Slimane, Azza Ouled Zaid
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Frequency-Domain Detection for Molecular Communications
ICC 2023 - IEEE International Conference on Communications, 2023 Molecular Communications (MC) is a bio-inspired communication paradigm which uses molecules as information carriers, thereby requiring unconventional transmitter/receiver architectures and modulation/detection techniques. Practical MC receivers (MC-Rxs) can be implemented based on field-effect transistor biosensor (bioFET) architectures, where surface ...
Meltem Civas +3 more
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Frontiers in Energy Research, 2022 Asymmetrical working conditions of the utility grid introduce the large-amplitude negative-sequence component to the output current of the voltage source converter (VSC), causing power semiconductor devices to suffer from thermal fatigue and thermal ...
Liansong Xiong +8 more
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An Improved CZT Algorithm for High-Precision Frequency Estimation
Applied Sciences, 2023 Estimating the frequencies of multiple superimposed exponentials in noise is an important problem due to its various applications in engineering. In order to obtain good inhibition of spectral leakage and improve the estimation accuracy, an improved ...
Yan Xu, Huiyue Yi, Wuxiong Zhang, Hui Xu
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