All-Pass Based Filter Design Using BAW Resonators

Bogner, Andreas; Bauder, Rudiger; Timme, H.-J.; Reccius, Christian H.; Weigel, Robert; Hagelauer, Amelie

doi:10.1109/ultsym.2019.8925738

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…The remaining noises are mainly the baseline drift 9 whose frequency is about 0.5 Hz, the power frequency interference 10 whose frequency is 50 Hz, and higher harmonics (100 Hz, 150 Hz, 200 Hz). This paper adopts digital filter which consists of a multi narrow band bandpass filter 11 and an all‐pass bandpass filter 12 . The multi narrow band bandpass and all‐pass bandpass filter have the same delay and gain.…”

Section: Physiological State Monitoring System Designmentioning

confidence: 99%

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On monitoring and detecting abnormal physiological state of athletes from internet of bodies

Wang

2021

Internet Technology Letters

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During athletes' training, long‐term appropriate training can help athletes to improve the level of competition. However, excessive training does not only help to enhance the athlete's level, but also may induce athlete be injury. In extreme situation, some athletes suffer sudden death caused by cardiovascular diseases or accidents due to excessive sport in competition or training. It is emergent to monitor the physiological parameters of the athlete during training to ensure their safety. This paper focuses on extracting electrocardiogram (ECG) signals to avoid accidents during training and uses the Internet of Bodies (IoB) to establish a monitoring system that includes multiple nodes of human physiological information to monitor human ECG signal, body temperature and other important physiological information in real time. The wireless communication is used to overcome the shackles of the traditional wired monitoring on the human body. The monitoring system can effectively collect the physiological signals and estimate the physiological parameters.

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Section: Physiological State Monitoring System Designmentioning

confidence: 99%

“…This paper adopts digital filter which consists of a multi narrow band bandpass filter 11 and an all-pass bandpass filter. 12 The multi narrow band bandpass and all-pass bandpass filter have the same delay and gain. An illustration of the digital filter is illustrated in Figure 2.…”

Section: Physiological State Monitoring System Designmentioning

confidence: 99%

On monitoring and detecting abnormal physiological state of athletes from internet of bodies

Wang

2021

Internet Technology Letters

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“…[4,5] A component of the demodulated signal is the band-pass filter whose performance [6][7][8][9] directly determines the quality of the communication and the signal-to-noise ratio. Nowadays, high-frequency band-pass filters mainly include surface acoustic wave (SAW) [10,11] and bulk acoustic wave (BAW) [12][13][14] filters, and the filters that can be used for high-frequency mobile communications are mainly BAW filters. At present, BAW filters on the market are mainly monopolized by Qorvo and Broadcom, and the bandwidth of existing band-pass filters is generally greater than 20 MHz, especially high-frequency band-pass filters, so the communication quality will be much lower than that of lowfrequency transmission with narrower pass band width.…”

Section: Introductionmentioning

confidence: 99%

A novel demodulation method for transmission using nitrogen–vacancy-based solid-state quantum sensor

et al. 2022

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Diamond based quantum sensing is a fast-emerging field with both scientific and technological significance. The nitrogen-vacancy (NV) center, a crystal defect in diamond, has become a unique object for microwave sensing applications due to its excellent stability, long spin coherence time and optical properties at ambient condition. In this work, we use diamond NV center as atomic receiver to demodulate On-Off Keying (OOK) signal transmitted in broad frequency range (2-14GHz in a portable benchtop setup). We proposed a unique algorithm of voltage discrimination and demonstrated audio signal transceiving with fidelity above 99%. This diamond receiver is attached to the end of a tapered fiber, having all optic nature, which will find important applications in data transmission tasks under extreme conditions such as strong electromagnetic interference, high temperatures and high corrosion.

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All-Pass Based Filter Design Using BAW Resonators

Cited by 2 publications

References 6 publications

On monitoring and detecting abnormal physiological state of athletes from internet of bodies

On monitoring and detecting abnormal physiological state of athletes from internet of bodies

A novel demodulation method for transmission using nitrogen–vacancy-based solid-state quantum sensor

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