离散频谱校正 discrete spectrum correction
It’s the reason of spectrum leakage and fence effect. Paper analyzes the effects of spectral leakage, the reasons for the fence and analysis the role of spectrum correction.
论文分析了频谱泄漏和栅栏效应形成的原因,并分析了频谱校正的作用,提出了结合重心法的谐波分析法应用于介质损耗测量。
参考来源 - 变压器套管介质损耗在线监测的研究In order to reduce the systematic error introduced by non-integer-period sampling, the spectrum correction methods were studied. The phase difference correction method was proposed, which was based on the transfer center of window function.
针对非整周期采样误差影响频率计算的精度的问题,研究了频谱校正方法。
参考来源 - 基于时频域分析的涡街流量计信号处理方法与系统的研究The virtual analyzer of frequency spectrum has combined the technology of virtual instrument, spectrum correcting and software programming. With data acquisition system, the experiment data are put into the master computer, analyzed and measured by the virtual instrument.
本文设计的虚拟频谱分析仪结合了虚拟仪器技术、频谱校正技术和软件编程技术，借助于数据采集系统将被测信号采集到主控计算机内，利用虚拟仪器进行测量和分析，并将结果输出到屏幕或报表中，从而完成整个测试过程。
参考来源 - 虚拟频谱分析仪的设计与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
采用去均值和频谱校正的方法，改善了系统的测量精度。
Through removing mean and frequency spectrum correction, the measurement precision of system is improved.
利用频谱校正技术使频谱测试结果在准确性上得到了提高。
The spectrum testing results have higher accuracy by the technology of spectrum emendation.
该文提出了一种适用于连续波雷达测速的、稳健的离散频谱校正方法，即三角形法。
A robust correcting method for discrete spectrum in CW radar velocity measuring is proposed in this paper, t is named the method of triangle.
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