1) deconvolution theorem
反卷积定理
1.
In this new method, firstly, a series of radiative field data in some height have been detected by means of aerial survey, secondly, the corresponding data in the ground can be computed by the deconvolution theorem,finally, the data in anywhere height may be computed with convolutio.
本文应用卷积定理和反卷积定理觖决了长期以来存在的任意面状放射源产生的辐射场求解问题。
2) convolution theorem
卷积定理
1.
Analysis of Analog Modulation Based On Convolution Theorem and Hilbert Transform;
基于卷积定理和希尔伯特变换的模拟调制分析
2.
According to the convolution theorem and the dec onvolution theorem published recently, this paper resolves a problem that is how to measure radiative field produced by some plane active deposit with the aerial gamma-ray survey.
本文应用卷积定理和反卷积定理觖决了长期以来存在的任意面状放射源产生的辐射场求解问题。
3.
Some examples were provided to emphasize that using convolution theorem, we can simplify the theoretical analysis of filtering and modulation(including demodulation, mixing, etc).
实例说明应用卷积定理，可以简化滤波与调制（包括解调、混频等）的理论分析。
3) complex convolution theorem
复卷积定理
4) time-domainconvolution theorem
时域卷积定理
5) frequency convolution theorem
频率卷积定理
6) sample convolution theorm
样本卷积定理
补充资料：滤波反投影或卷积反投影
滤波反投影或卷积反投影
影像学术语。当代影像学设备进行影像重建的数学方法。在直接用扫描后所获得的投影轨迹剖面图反投影重建出的CT图像中，无法避免角度卷入条纹伪影(angular aliasing streaks)造成的模糊和失真。这种现象与被扫描层面的空间频率中高频信息的损失有关。使用一种精密的数学方法去除这种模糊。称为“展现”(unfolding)或去卷积(deconvolution)，即在反投影前使用一种数学的“滤器”或卷积函数对原始数据进行修正，然后再进行反投影。两步数学处理过程合称为滤波(修正后)反投影或卷积(后)反投影。这种方法的优点是处理过程简单，速度快，所得图像逼真、清晰。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条