1、

Recursive noise elimination in f-x domain and spectrum equalization under dominant frequency restriction

优势频率约束下的递推f-x去噪和谱均衡方法

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3、

after the structural interpretation of post-stack seismic section, non-isotime extrapolated wave impedance inversion of target horizon is made, starting from borehole-side trace, to achieve seismic inversion operation of the same horizon under a restriction of equal low frequency background.

对叠后地震剖面进行构造解释后,再从井旁道出发对目标层段进行非等时的外推波阻抗反演,使用相同层位的地震数据能够在相同低频背景的约束条件下进行反演运算。

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4、

According to the higher PAPR in the OFDM system, by analyzing the frequency distribution of constellation points after clipping, the code restriction technique is adopted to combat the effect of clipping the OFDM signal in the digital part of the transmitter.

针对正交频分复用系统中峰均功率比过高的问题,分析了限幅后复频域星座点分布图,提出一种消除数字传输中限幅噪声的简单方法,即码元约束技术。

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5、

the experiments of the platform are performed, according to the data, a detailed analysis of the experimental result is raised from six aspects concerning hydraulic oil as in contaminant, temperature, individual difference, pulsation frequency of control signal, and the restriction of system bandwidth.

本文对系统进行了联机调试,并对实验数据从液压油的杂质、温度、个体差异、控制信号脉动频率、系统带宽限制等六个角度进行了分析。

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6、

RFLP ( restriction fragment length polymorphism) analysis showed that the transposon is 3 cM ( centiMorgan) away from the S locus and retains high transpositional activity with a germinal excision frequency of 20%.

限制性酶切片段长度多态性(RFLP)的分析证明该转座子距S位点约3cM(centiMorgan),并且保持了较高的转位活性,其配子切除频率高达20%。

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