Distortion in Fourier transform rheology due to frequency error
Sign Up to like & getrecommendations! Published in 2020 at "Rheologica Acta"
DOI: 10.1007/s00397-020-01188-7
Abstract: Fourier transform rheology (FT-Rheology) is a sensitive method to characterize nonlinear rheological properties. To achieve higher precision of FT-Rheology, many random and systematic errors of rheometers have been intensively investigated. Frequency error, the difference between… read more here.
Keywords: frequency; rheology; frequency error; transform rheology ... See more keywords
A 12-mW 10-GHz FMCW PLL Based on an Integrating DAC With 28-kHz RMS-Frequency-Error for 23-MHz/μs Slope and 1.2-GHz Chirp-Bandwidth
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2020.3021311
Abstract: A 10-GHz sub-sampling phase-locked loop (PLL) (SSPLL) with wideband low-noise frequency modulation for frequency-modulated continuous-wave (FMCW) radar applications is presented. It uses a low-power charge-integrating digital-to-analog converter (QDAC) to tune the voltage-controlled oscillator (VCO) in… read more here.
Keywords: chirp bandwidth; khz rms; ghz; rms frequency ... See more keywords
A 24 GHz Self-Calibrated All-Digital FMCW Synthesizer With 0.01% RMS Frequency Error Under 3.2 GHz Chirp Bandwidth and 320 MHz/µs Chirp Slope
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2021.3123693
Abstract: A 24 GHz self-calibrated all-digital frequency-modulated continuous-wave (FMCW) synthesizer is presented in this article. A multi-bank digitally controlled oscillator (DCO) is employed to provide adequate frequency tuning range and high frequency resolution. A full background… read more here.
Keywords: rms frequency; ghz; frequency error; chirp ... See more keywords
Frequency Error Compensation of Unsynchronized Bistatic CW- MIMO Radar for Multiple Human-Body Localization
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Biomedical Circuits and Systems"
DOI: 10.1109/tbcas.2022.3205362
Abstract: This article presents and experimentally evaluates a frequency error elimination technique suitable for unsynchronized bistatic Multiple-Input Multiple-Output (MIMO) radar for human-body detection. First, a mathematical expression of human-body localization using bistatic MIMO radar is presented.… read more here.
Keywords: error; frequency; frequency error; mimo radar ... See more keywords
Practical Synchronization Waveform for Massive Machine-Type Communications
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2018.2875009
Abstract: This paper proposes a practical synchronization waveform that is resilient to frequency error for machine-type communications with applications in massive Internet of Things (IoT). Mathematical properties of the waveform are derived, which are keys to… read more here.
Keywords: waveform; synchronization waveform; frequency error; synchronization ... See more keywords
Intermediate-frequency error identification of precision optical surface based on the Hilbert spectrum and instantaneous frequency filtering method
Sign Up to like & getrecommendations! Published in 2018 at "Optical Engineering"
DOI: 10.1117/1.oe.57.6.064108
Abstract: Abstract. To evaluate the intermediate-frequency error of a precision optical surface, a method for more accurate separation and identification of the intermediate-frequency error is proposed. This method is based on the Hilbert spectrum and the… read more here.
Keywords: intermediate frequency; frequency; spectrum; based hilbert ... See more keywords