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- StÃ©phane Mallat, Zhifeng Zhang
- IEEE Trans. Signal Processing
- 1993

We introduce an algorithm, called matching pursuit, that decomposes any signal into a linear expansion of waveforms that are selected from a redundant dictionary of functions. These waveforms areâ€¦ (More)

- Zhifeng Zhang
- 1993

We introduce an algorithm, called matching pursuit, that decomposes any signal into a linear expansion of waveforms that are selected from a redundant dictionary of functions. These waveforms areâ€¦ (More)

- Zhifeng Zhang
- 1994

Computing the optimal expansion of a signal in a redundant dictionary of waveforms is an NP-hard problem. We introduce a greedy algorithm, called a matching pursuit, which computes a sub-optimalâ€¦ (More)

2 Locally Stationary Processes 2 2.1 Time-varying spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Locally stationary processes depending on a parameter . . . . . . . . . .â€¦ (More)

- Jun Wu, Zhifeng Zhang, Yu Ah Hong, Yonggang Wen
- IEEE Network
- 2015

In the era of mobile Internet, mobile operators are facing pressure on ever-increasing capital expenditures and operating expenses with much less growth of income. Cloud Radio Access Network (C-RAN)â€¦ (More)

- Zhifeng Zhang, Renyuan Tang, Baodong Bai, Dexin Xie
- IEEE Transactions on Magnetics
- 2010

This paper describes a combination of direct torque control (DTC) and space vector modulation (SVM) for an adjustable speed sensorless induction motor (IM) drive. The motor drive is supplied by aâ€¦ (More)

- Zhifeng Zhang
- 1994

Computing the optimal expansion of a signal in a redundant dictionary of waveforms is an NP-complete problem. We introduce a greedy algorithm called a matching pursuit which computes a sub-optimalâ€¦ (More)

- Yali Cui, Yani Wang, Wenli Hui, Zhifeng Zhang, Xiaofang Xin, Chao Chen
- Biomedical microdevices
- 2005

Fe3O4/Au (GoldMag) particles with core/shell structure were synthesized by reduction of Au3+ with hydroxylamine in the presence of Fe3O4. The synthesized particles have an average size smaller thanâ€¦ (More)

- Jun Wu, Jun Wu, Wenfeng Li, Zhifeng Zhang, Fusheng Zhu, Minghao Wu
- IEEE Transactions on Dependable and Secureâ€¦
- 2016

In vehicular ad-hoc network (VANET), the reliability of communication is associated with driving safety. However, research shows that the safety-message transmission in VANET may be congested underâ€¦ (More)

- Guomin Zhang, Shaotao Dai, +7 authors Liangzhen Lin
- IEEE Transactions on Applied Superconductivity
- 2011

It is expected that superconducting technologies will play an important role in the future smart grid, because the application of superconductor technologies in the power grid can decrease powerâ€¦ (More)