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| 1 | Asymptotic Behavior of Gibbs Functions for M-Band Wavelet Expansions | Daren Huang Zeyin Zhang, Center for Mathematical Sciences, Zhejiang University, Hangzhou 310027, P. R. China | 1999 | Acta Mathematica Sinica,English Series1999，15，2： | 3 |
| 2 | Unpredictability of Digital Twin for Connected Vehicles显示文摘Digital twin is an essential enabling technology for 6G connected vehicles.Through highfidelity mobility simulation,digital twin is expected to make accurate prediction about the vehicle trajectory,and then support intelligent applications such as safety monitoring and self-driving for connected vehicles.However,it is observed that even if a digital twin model is perfectly derived,it might still fail to predict the trajectory due to tiny measurement noise or delay in the initial vehicle locations.This paper aims at investigating the sources of unpredictability of digital twin.Take the car-following behaviors in connected vehicles for case study.The theoretical analysis and experimental results indicate that the predictability of digital twin naturally depends on its system complexity.Once a system enters a complex pattern,its longterm states are unpredictable.Furthermore,our study discloses that the complexity is determined,on the one hand,by the intrinsic factors of the target physical system such as the driver’s response sensitivity and delay,and on the other hand,by the crucial parameters of the digital twin system such as the sampling interval and twining latency. | Xiaoxu Wang Zeyin Huang Songmiao Zheng Rong Yu Miao Pan | 2023 | China Communications2023，20，2： | 0 |
| 3 | ON PARAMETRIC FACTORIZATION OF BI-ORTHOGONAL LAURENT POLYNOMIAL WAVELET FILTERS显示文摘In this paper,we study the factorization of bi-orthogonal Laurent polynomial wavelet matrices with degree one into simple blocks.A conjecture about advanced factorization is given. | Bi Ning Huang Daren and Zhang Zeyin (Zhejiang University, China) | 2002 | Approximation Theory and Its Applications2002，18，2： | 0 |
| 4 | ON PARAMETRIC FACTORIZATION OF BI-ORTHOGONAL LAURENT POLYNOMIAL WAVELET FILTERS显示文摘In this paper, we study the factorization of bi-orthogonal Laurent polynomial wavelet matrices with degree one into simple blocks. A conjecture about advanced factorization is given. | Hu Junquan Huang Daren Zhang Zeyin (Zhejiang University, China) | 2002 | Approximation Theory and Its Applications2002，18，4： | 0 |
| 5 | WAVELET TECHNIQUE RECOVERING IMAGE BLURRED BY MIXED GAUSSIAN AND SALT-PEPPER NOISE显示文摘In this paper, we propose a new method to removing the mixed Gaussian and salt-pepper noise based on wavelet. To estimate outlier, A scheme called max-min method is adopted after DWT. Experimental results show that this method is more effective than common image restoration methods, such as Median filter, center weighted median filter. | Hu Junquan, Huang Daren, Wang Zhenwu and Zhang Zeyin (Zhejiang University,China) Department of Mathematics Zhejiang University Hangzhou 310027 P.R.China | 2003 | Analysis in Theory and Applications2003，19，2： | 0 |
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