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Research on Constant Frequency Electrical Angle Start Method of LCI
Advanced Materials Research, 2014Load-commutated inverters (LCIs) are the key starting device of wound-field synchronous motor. By detecting the rotor position and inputting a variable frequent current to the stator windings, the LCI can drive the motor from standstill to a given speed.
Lian Tao Ji +6 more
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Frequency-domain lifetime imaging methods at unilever research
Journal of Fluorescence, 1997Fluorescence lifetime imaging methodology has been successfully implemented at Unilever Research in a frequency-domain manner. The experimental rig constructed comprises a wide-bandwidth electrooptic modulator operating on a CW argon-ion laser. The modulated excitation with a typical upper modulation frequency limit of 200 MHz falls on macroscopic ...
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Research on a New Fault Location Method Based on Frequency Analysis
2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific, 2005From the point of view of pattern recognition, a new fault location method based on frequency analysis is proposed in this paper. It samples the transient voltages at the sending end and the transient currents flow through the transmission line during the fault at first and analyzes the phase relation between voltage and current at different frequency ...
null Rong Lian +3 more
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The Research of Vehicle Classification Method Based on the Frequency Domain Features
2016On the basis of the time-variable signal generated by a geomagnetic sensor, a vehicle classification method based on the fusion of time domain and frequency domain features is presented. First, mutation value removal, weighted smoothing and cubic spline interpolation method are selected as a pretreatment.
Yi Tang +4 more
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Research on Testing Method and Influence of GlONASS Inter-frequency Biases
2014GLONASS adopts FDMA signal mechanism, some inter-frequency biases generated at the receiver end make difficult to the implementation and application of multi-mode navigation, which is an important subject having to be considered and resolved. First, in this paper, GNSS simulator was implemented based on the study on the testing approach for GLONASS ...
Xue Zhang, Huijun Zhang, Xiaohui Li
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Research of Stable Method to Estimate Receiver Function in Frequency‐Domain
Chinese Journal of Geophysics, 2009Abstract“Water level” is used in the estimation of receiver function in frequency‐domain to replace the value that is smaller than the level in vertical component, so as to improve the stability of deconvolution. However this will reduce the resolution of receiver function, especially the lower‐frequency information which has significant meaning to ...
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Design of ATS for Frequency Synthesizer and Research on Test Methods
2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI), 2021Libin Chen +5 more
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Brief summary of research in high frequency methods at OSU-ESL
IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450), 2004The Ohio State Univ. ElectroScience Lab. (ESL) has been, and still continues to be recognized as one of the dominant establishments for the development of asymptotic high frequency solutions, and their associated computer codes, to solve a wide variety of electrically large, radiation and scattering problems of significant engineering interest.
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Analysis and research on adaptive Time-Frequency analysis method
Proceedings of the 5th International Conference on Computer Science and Software Engineering, 2022openaire +1 more source
2023 International Conference on Sensing, Measurement & Data Analytics in the era of Artificial Intelligence (ICSMD), 2023
Jiaxuan Zhou +3 more
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Jiaxuan Zhou +3 more
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