QQ客服 官方微博 反馈留言

浏览/检索结果: 共5条，第1-5条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Modification of the nuclear landscape in the inverse problem framework using the generalized Bethe-Weizsacker mass formula 期刊论文 INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS, 2018, 卷号: 27, 期号: 2, 页码: 53 作者:  Mavrodiev, S. Cht.;  Deliyergiyev, M. A. 收藏  |  浏览/下载：50/0  |  提交时间：2019/10/09 Bethe-Weizsacker mass formula  magic numbers  binding energy  Wigner term  inverse problem.   Modification of the nuclear landscape in the inverse problem framework using the generalized Bethe-Weizsacker mass formula 期刊论文 INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS, 2018, 卷号: 27, 期号: 2, 页码: 1850015 作者:  Mavrodiev, S. Cht.;  Deliyergiyev, M. A. 收藏  |  浏览/下载：27/0  |  提交时间：2018/05/31 Bethe-Weizsacker mass formula  magic numbers  binding energy  Wigner term  inverse problem.   A New Interference Detection Method Based on Joint Hybrid Time-Frequency Distribution for GNSS Receivers 期刊论文 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2016, 卷号: 65, 页码: 9057-9071 作者:  Sun, Kewen;  Zhang, Min;  Yang, Dongkai 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/30 Choi-Williams transform (CWT)  cross-term mitigation  Hadamard product  interference detection  smoothed pseudo Wigner-Ville distribution (SPWVD)   Machine fault diagnostics based on Wigner-Ville high-order spectra 期刊论文 2010, 2010 Li Zhinong; He Yongyong; Chu Fulei 收藏  |  浏览/下载：6/0 A high-accuracy parameter estimation algorithm for jointless Frequency-shift track circuit (EI CONFERENCE) 会议论文 ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China Jin Y.; Zheng X.; Ding T. 收藏  |  浏览/下载：12/0  |  提交时间：2013/03/25 FSK (Frequency Shift keying) signal  which has advantages of narrow-bandwidth  strong anti-interference ability  long transmission distance and so on  is used in jointless Frequency-shift track circuit to send different kinds of control signals. However  as FSK is non-linearly modulated  parameter estimation with high accuracy is hard to realize. Based on the spectrum analysis complement with time-frequency distribution  a highaccuracy FSK signal parameter estimation algorithm is put forward in this paper. According to the signal characteristics  under-sampling and ZFFT are used to improve the accuracy of spectrum analysis  and the base frequency resolution meets system requirement of 0.02Hz. Wigner-Ville distribution has an excellent time-frequency concentration while serious cross-term interference at the same time. Through the design of kernel function  the cross-terms are almost suppressed and the upper/down side frequency resolution meets the system requirement of 0.2Hz. The effectivities of all the methods mentioned above have been proved by MATLAB simulation  which pave a solid way for the development of high-accuracy FSK signal parameter estimation devices. 2008 IEEE.