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value. 3 Frequency-domain system identification procedure The steps required for the frequency-domain system identification procedure includes: 1) the collection of time-domain data from the excitation...J. Cent. South Univ. (2016) 23: 1944-1953 DOI: 10.1007/s11771-016-3251-5 Line of sight waypoint guidance for a container ship based on frequency domain identification of Nomoto model of vessel M. T......
Evolution of domain structure and frequency effect on ferroelectric properties in BIT ferroelectrics ZHENG Xue-jun(郑学军)1, 2, LU Jia(卢佳)1, ZHOU Yi-chun(周益春)1,2, WU Bo(吴波)1, CHEN Yi-qiang..., domain growth and domain combination. In the boundary regions of ferroelectric domain, the new domain nucleations occur and the old domains disappear. The coercive field increases with the field frequency......
J. Cent. South Univ. (2018) 25: 2150-2163 DOI: https://doi.org/10.1007/s11771-018-3904-7 Power-line interference suppression of MT data based on frequency domain sparse decomposition TANG Jing-tian... proposes an alternative scheme for power-line interference removal based on frequency-domain sparse decomposition. Firstly, the fast Fourier transform of the acquired MT signal is performed. Subsequently......
in the frequency domain using the Cauchy method [J]. IEEE Transactions on Antennas and Propagation, 2007, 55(10): 2844-2851. [14] M?D?LINA M D, DIRK T. Evolutionary Markov chain Monte Carlo [M]. New York...J. Cent. South Univ. Technol. (2011) 18: 809-815 DOI: 10.1007/s11771-011-0766-7 Super-resolution reconstruction of synthetic-aperture radar image using adaptive-threshold singular value......
Low dimensional chaos in elevator peak traffic LI Jun-fang(李俊芳)1, 2, ZONG Qun(宗群)1, ZHANG Jing-long(张景龙)1, WANG Fang(王芳)1 (1. School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China; 2. School of Electrical Engineering, Tianjin University of Technology, Tianjin 300384, China) Abstract: Nonlinear time series techniques were applied to analyze up-peak and down......
electric field value of the specimen, Ec, will be produced in the ceramic between the two electrodes. In order to study the influence of the 90? domain switching that really occurs in the specimen... peak [J]. J Phys Condens Matter, 1991, 3: 8695-8705. [13] ZHANG Sa, CHENG Xuan, ZHANG Ying. In situ Raman spectroscopy observation for domain switching of ferroelectric ceramics [J]. Acta Metallurgica......
it from a time-frequency representation. GUO et al [11] estimated a motor’s IRF using the IF, which is extracted from the time-frequency representation of the motor’s vibration signal using the peak... estimation based on the IFCF firstly extracts the IFCFs from a time-frequency representation of the envelope signal by the peak searching, and then calculates the IRF by dividing the IFCF trend by the fault......
signal constellation after the cancellation with the TD-LMS scheme in time domain. From Figs.3-6, it can be seen that TD-LMS scheme may eliminate the disturbance completely when frequency offset value...: In an orthogonal frequency division multiplexing (OFDM) system, a time and frequency domain least mean square algorithm (TF-LMS) was proposed to cancel the frequency offset (FO). TF-LMS algorithm is composed......
J. Cent. South Univ. (2017) 24: 2421-2430 DOI: https://doi.org/10.1007/s11771-017-3653-z Near ground wind characteristics during typhoon Meari:Turbulence intensities, gust factors, and peak factors... calculated and equal to be 1:0.88:0.50, 1:0.84:0.57, and 1:0.9:0.49, respectively. In addition, the gust factors in three directions exhibit a reduction with increasing mean wind speed. The peak factors......
and Vlow for a period of time, it shows that the VCO is running at the expectable frequency range, the capacitor bank will be at the correct value and decide logic will give out lock_det_ana<1:0>... for calibration. The results show that the PLL AFC circuits automatically start to tune the VCO capacitor bank to a correct value. The AFC finished t whole frequency calibration in about 25 μs through 6 steps......