研究表明，最优低通差分滤波器是一种分析电能质量干扰信号的比较有效的工具。
It is indicated in the research results that OLPDF is an effective tool in the analysis of power quality disturbance signals.
提出用并行差分滤波器去除背景，用逻辑与剔除噪声，用递归方法累积目标轨迹的算法。
It proposes using parallel difference filters to suppress backgrounds, using logic and method to eliminate noise and using recursive method to cumulate the target tracks.
主要讨论数字滤波器在采用差分方程实现中的IIR和FIR设计中所涉及的理论支持。
In this thesis, we will discuss the theory of the realization of difference equations in designing IIR and FIR of digital filters.
为了在继承拉普拉斯算子高实时性的前提下提高图像分割质量，设计了一个可与拉普拉斯算子差分计算同步进行滤波工作的空间滤波器。
In order to improve the quality of Laplace operator image segmentation at a high real time capability this paper presented a synchronization dimensional structure filter for Laplace operator.
接收部分主要是扩频系统的数字下变频、积分清洗、匹配滤波器解扩、功率检测、符号跟踪、差分译码等技术。
The receiver unit mainly consisted of the digital down converter, matched filter, integration and dump module, power detector, symbol tracking processor, differential demodulator and so on.
极限情况下，当混叠十分严重时，相对于理想低通滤波器，用维纳滤波器进行亚象素插值能将预测残差均方和减少一半。
In an extreme case, when the aliasing effects are very severe, using wiener filter can reduce the prediction errors'energy by about 50% in comparison with using the ideal low pass filter.
极限情况下，当混叠十分严重时，相对于理想低通滤波器，用维纳滤波器进行亚象素插值能将预测残差均方和减少一半。
In an extreme case, when the aliasing effects are very severe, using wiener filter can reduce the prediction errors'energy by about 50% in comparison with using the ideal low pass filter.
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