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Article | 01-September-2014

STUDY AND CONSTRUCTION ON MEMORYLESS NONLINEAR MODEL OF DOHERTY AMPLIFIER

OFDM technology has become the core technology of DTMB system. The high Doherty power amplifier can effectively improve the peak-average power ratio of OFDM system, but with poor linear performance. This paper starts with improving linear performance of Doherty power amplifier, analyzes the nonlinear model of power amplifier, presents a construction method of nonlinear performance model of Doherty power amplifier, gets the corresponding nonlinear performance curve, and then presents a design of

Chen Jun, Su Kaixiong, Huang Xiyuan, Yan Lirong

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 3, 1421–1435

Article | 01-June-2020

New linear model for optimal cluster size in cluster sampling

In this paper, a nonlinear model is proposed for improving the relationship between the size of a cluster and the variance within the cluster. This model describes the most appropriate functional relation between the within-cluster variance and the cluster size. Through this model, we can obtain the optimum size of a cluster and an estimate of the variance between clusters. The proposed model leads to further improvement in the estimation of the optimum size of a cluster, and the formula for

Alok Kumar Shukla, Subhash Kumar Yadav

Statistics in Transition New Series, Volume 21 , ISSUE 2, 189–200

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