文章摘要信息 关键词 ： 认知无线电 频谱感知 频谱预测 [gap=830]Keywords : cognitive radio;Spectrum perception;Spectrum prediction
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Thirdly, the paper researches the methods of the two parts of Quiet Frequency Selection: frequency spectrum prediction and sliding window frequency selection.
然后对寂静频率选取方法的两个部分:频谱预测和滑窗选频,进行了方法研究。
参考来源 - 软件高频雷达频率监测及选频方法的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
对负荷曲线进行了频谱分析，得出维纳滤波具有过滤冲击负荷、消除毛刺使预测曲线光滑易于人工调整的优点。
Spectrum analysis to load curves shows that the wiener filtering has the merits of filtering impact load, removing burrs and smoothing forecast curves.
为了预测微分算子边缘提取能达到的效果，从频域角度出发，分析了边缘检测中常用微分算子的频谱特性。
For the sake of predicting the detection effect of differential operators, the frequency features of common operators are analyzed from the view point of frequency domain.
通过多种特殊处理方法效果的分析，总结了一套较为有效的恶性井漏地震预测技术，如相干体分析、频谱分析等。
By the effect analysis of various special processing methods, a set of seismic prediction techniques of malignant leakage such as coherent analysis and frequency spectrum analysis are summarized.
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