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2篇 您的检索式：作者名="Shao Dechun"

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		题名	作者	年代	出处	被引量
	1	On mechanism of the effect of rare earth on wear-ability of nickel base self-fluxing alloy 显示文摘	Li Muqin Ma Chen Shao Dechun	1991	Journal of Rare Earths1991，9，3：	1
	2	A NOVEL PAPR REDUCTION WITH TRELLIS SHAPING FOR NC-OFDM IN COGNITIVE RADIO显示文摘In this paper, trellis shaping is applied to reducing the Peak-to-Average Power Ratio(PAPR) of NC-OFDM signals due to the fact that the total number of active subcarriers and their locations might change continuously in a dynamic spectrum access network.A new branch metric of trellis shaping is proposed which reduces the PAPR of OFDM signals through minimizing the variance of the power by VA decoder.The overall performance considerably depends on the type of signal mapping, and therefore a new type of 64QAM mapping method is designed.Simulation results show that this scheme significantly reduces the PAPR.Finally, a significant phenomenon is demonstrated that the PAPR of NC-OFDM signals in which the deactivated carriers is distributed in the Bernoulli distribution has better performance than that of OFDM signals.	Shao Fei Yu Yong Zhang Shijie Sun Dechun	2009	Journal of Electronics(China)2009，26，3：	1

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