搜索结果: 1-6 共查到“计算机科学技术 -Sigma”相关记录6条 . 查询时间(0.062 秒)
On Incremental Sigma-Delta Modulation with Optimal Filtering
Sigma-Delta (Σ∆ ) incremental A/D converter optimal filter Σ∆ transfer function time-domain analysis
2015/8/12
The paper presents a quantization-theoretic framework for studying incremental Σ∆ data conversion systems. The framework makes it possible to efficiently compute the quantization intervals and h...
Power Efficient Continuous-Time Delta-Sigma Modulator Architectures for Wideband Analog to Digital Conversion
Analog-to-Digital Conversion CMOS Integrated Circuit Continuous-Time Delta-Sigma Modulator Low-Power Wideband
2014/11/7
This work presents novel continuous-time delta-sigma modulator architectures with low-power consumption and improved signal transfer functions which are suitable for wideband A/D conversion in wireles...
SIGMA: Spatial Integrated Matching Association Algorithm for Logo Detection
Spatial Integrated Matching Association Algorithm Logo Detection
2010/12/21
In this paper, we adopt the integration model of spatial feature correlations to order the indexing and matching features, and address the computational ineffectiveness and
inefficiency of local fea...
Pi-sigma神经网络混合学习算法及收敛性分析
混合遗传算法 Pi-sigma神经网络 算法收敛性
2009/7/24
将一种解决函数优化问题的混合遗传算法用于Pi-sigma神经网络的训练。这种混合算法充分利用遗传算法算法的全局搜索能力，又利用了单纯型法的局部搜索能力，因此该混合遗传算法可以使Pi-sigma神经网络更快的收敛到全局最优解，而且收敛速度比遗传算法更快。实验证明了这种算法的优越性。最后还证明了该算法可以以概率1收敛到全局最优解。
Sigma Set: A Small Second Order Statistical Region Descriptor
Sigma Set A Small Second Order Statistical Region Descriptor
2013/7/16
Given an image region of pixels, second order statistics can be used to construct a descriptor for object representation. One example is the covariance matrix descriptor, which shows high discriminat...
新型Sigma-Pi泛函网络模型
泛函神经元 泛函网络 Sigma-Pi泛函网络 基函数簇 异或问题
2008/12/30
将泛函神经元结构变形，建立Sigma-Pi泛函网络模型，给出Sigma-Pi泛函网络学习算法。采用数值分析的方法，将Sigma-Pi泛函网络应用于异或问题，结果表明，该网络对于某些问题具有很强的分类能力。该方法的优点在于利用一元函数作为基函数来实现高维函数的逼近，在函数逼近技术上，有着重要的应用价值。