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	FROM THE WIGNER FUNCTION TO THE s-ORDERED PHASE-SPACE DISTRIBUTION VIA A GAUSSIAN NOISE CHANNEL 期刊论文 OAI收割 THEORETICAL AND MATHEMATICAL PHYSICS, 2022, 卷号: 210, 期号: 3, 页码: 425-441 作者: Zhang, Yue; Luo, Shunlong \| 收藏 \| 浏览/下载：69/0 \| 提交时间：2022/04/29 Wigner function s-ordered phase-space distribution Gaussian noise channel noise parameter nonclassicality
	Quantum corrections for boltzmann equation 期刊论文 iSwitch采集 Science in china series g-physics mechanics & astronomy, 2008, 卷号: 51, 期号: 9, 页码: 1229-1239 作者: Wang ZhengChuan 收藏 \| 浏览/下载：28/0 \| 提交时间：2019/05/10 Quantum boltzmann equation Wigner distribution function Quantum correction
	A high-accuracy parameter estimation algorithm for jointless Frequency-shift track circuit (EI CONFERENCE) 会议论文 OAI收割 ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China 作者: Zheng X. 收藏 \| 浏览/下载：22/0 \| 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.
	Enlarging the depth of focus by filtering in the phase-space domain 期刊论文 OAI收割 appl. optics, 2005, 卷号: 44, 期号: 32, 页码: 6833, 6840 Yang QG; 刘立人; Lang HT 收藏 \| 浏览/下载：1750/229 \| 提交时间：2009/09/18 WIGNER DISTRIBUTION FUNCTION HIGH FOCAL DEPTH AMBIGUITY FUNCTION OPTICAL-SYSTEMS IMAGING-SYSTEMS EXTENDED DEPTH STREHL RATIO APERTURES FIELD ABERRATION