Articles with "center frequency" as a keyword



A Low-Complexity Multistage Polyphase Filter Bank For Wireless Microphone Detection in CR

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Published in 2017 at "Circuits, Systems, and Signal Processing"

DOI: 10.1007/s00034-016-0358-8

Abstract: In this paper, we propose a low-complexity multistage polyphase filter bank for the detection and estimation of center frequency of wireless microphone (WM) in television channels for cognitive radios. The detection precision is directly related… read more here.

Keywords: estimation; detection; complexity; center frequency ... See more keywords
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Analysis of Center Frequency Effect on Damping Parameters Estimation Using Continuous Wavelet Transform

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Published in 2021 at "Ksce Journal of Civil Engineering"

DOI: 10.1007/s12205-021-1255-7

Abstract: This paper aims to improve the use of continuous wavelet transform (CWT) to identify the damping parameters from the free decay responses of structures. Numerical response functions (impulse response functions) were simulated with lower frequencies… read more here.

Keywords: wavelet; continuous wavelet; damping parameters; center frequency ... See more keywords

Multifunctional and tunable bandpass filters with RF codesigned isolator and impedance matching capabilities

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Published in 2024 at "International Journal of Microwave and Wireless Technologies"

DOI: 10.1017/s1759078724000783

Abstract: This paper presents the radio frequency (RF) design and experimental validation of a multifunctional bandpass filtering (BPF) concept with center frequency tunability and RF codesigned isolator and impedance matching functionality. The multifunctional bandpass filter/isolator (BPFI)… read more here.

Keywords: bandpass; isolator impedance; center frequency; codesigned isolator ... See more keywords
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Research on Feature Extraction of Ship-Radiated Noise Based on Compressed Sensing and Center Frequency

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Published in 2021 at "IEEE Access"

DOI: 10.1109/access.2021.3113042

Abstract: In the field of underwater acoustic signal processing, the ship radiated noise contains a large amount of ship information, which is of great significance to the ship identification. The traditional method relies too much on… read more here.

Keywords: ship; ship radiated; feature extraction; center frequency ... See more keywords

A New Two-Port MIMO Filtenna With Tunable Bandwidth and Center Frequency

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Published in 2024 at "IEEE Access"

DOI: 10.1109/access.2024.3509513

Abstract: A new two-port MIMO filtenna with center frequency and bandwidth tunability is introduced by integrating a tunable filter into the feeding section of a monopole antenna. The tunable filter is constructed by a dual-mode square… read more here.

Keywords: center frequency; two port; mimo filtenna; frequency ... See more keywords

A Second Harmonic Current Suppression Strategy Based on a Digital Band-Stop Filter With Center Frequency Tracking Grid Frequency

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Published in 2025 at "IEEE Access"

DOI: 10.1109/access.2025.3529886

Abstract: In a single-phase grid-tie system, the presence of a second harmonic current (SHC) on the DC side reduces the conversion efficiency and lifetime of the DC source. For a system whose front-end is a boost… read more here.

Keywords: harmonic current; center frequency; grid frequency; second harmonic ... See more keywords

Tunable Center Frequency Negative Group Delay Filter Using Coupling Matrix Approach

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Published in 2017 at "IEEE Microwave and Wireless Components Letters"

DOI: 10.1109/lmwc.2016.2629985

Abstract: In this letter, a negative group delay filter (NGDF) with tunable center frequencies is presented. The proposed filter is designed using finite unloaded-Qu resonators based on the coupling matrix approach. The proposed NGDF does not… read more here.

Keywords: center frequency; filter; group delay; negative group ... See more keywords

Design of a tunable center frequency and small size cavity bandpass filter by separating capacitor-loaded resonators

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Published in 2024 at "Indonesian Journal of Electrical Engineering and Computer Science"

DOI: 10.11591/ijeecs.v35.i3.pp1456-1467

Abstract: This paper presents a tunable center frequency and small size cavity bandpass filter design method. In this method, a capacitor-loaded open terminal coaxial resonator is employed to reduce the size of cavity filters. The resonator… read more here.

Keywords: filter; cavity; size cavity; center frequency ... See more keywords

Bearing fault diagnosis method based on complete center frequency distribution feature

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Published in 2023 at "Structural Health Monitoring"

DOI: 10.1177/14759217231166843

Abstract: Considering the difficulty of selecting sensitive fault features in bearing health diagnosis, a fault diagnosis method based on complete center frequency distribution feature (CCFDF) is proposed. By making full use of the sensitivity of the… read more here.

Keywords: diagnosis; distribution; center frequency; fault ... See more keywords
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Design and Fabrication of a MEMS Bandpass Filter with Different Center Frequency of 8.5–12 GHz

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Published in 2023 at "Micromachines"

DOI: 10.3390/mi14020280

Abstract: The design simulation and fabrication results of a bandpass filter based on micro-electro-mechanical system (MEMS) switches are presented in this paper. The MEMS filter element consists of a MEMS capacitance switch and two resonant rings… read more here.

Keywords: design; ghz; center frequency; filter ... See more keywords