• The spectral characteristic of the materials can indicate its component, structure and morphology.

    材料光谱特性能够直接反映材料组成结构形态特征

    dict.cnki.net

  • This paper introduces optical characteristics and spectral characteristic of optical fiber Bragg grating, introduces the experiments of grating fabrication with phase masks.

    本文介绍光纤布拉格光栅光学特性光谱特性介绍相位掩膜法制作光纤光栅相关实验

    dict.cnki.net

  • The spatial reflected characteristic and spectral characteristic from optical material surfaces were effectively described by the BRDF (Bi-directional Reflectance Distribution Function).

    双向反射分布函数(BRDF)有效地描述了材料表面空间反射特性光谱特性

    dict.cnki.net

  • Spectral characteristic is one of the basic characteristics of ground objects, and is the basis of qualitative and quantitative remote sensing.

    波谱特性地物目标基本特性之一定性定量遥感基础

    www.journalgis.cn

  • Spectral characteristic is one of the basic characteristics of surface objects, and is the basis of qualitative and quantitative remote sensing.

    波谱特性地物目标基本特性之一定性定量遥感基础

    dict.cnki.net

  • According to the spectral characteristic of the noise source, the tube-type muffler, metal-enclosure muffler, structural-type muffler can be equipped before and after the noise reduction devices.

    根据声源频谱特性在其前后配置合理管道式消声器、金属外壳式消声器结构式消声器作为消声降噪措施。

    www.chinazisen.com

  • This paper analyzes the spectral characteristic of the synthesized waveform by use of the Fourier Series, and discusses the spurious spectrum of the phase truncation errors.

    本文级数方法分析了合成波形频谱特性对由于相位截断引起作了讨论

    dict.cnki.net

  • Based on analysis of spectral characteristic of helicopter acoustic signal, a method of extracting harmonic frequencies from the helicopter acoustic signal via ESPRIT is proposed.

    直升机信号特征进行分析之后,提出一种基于谐波恢复ESPRIT方法提取直升机信号谐波频率作为特征用以识别直升机目标。

    dict.cnki.net

  • The spectral photometric characteristic of the object is the main factor affecting its color appearance.

    物体光谱光度特性产生不同颜色外貌主要因素

    dict.cnki.net

  • The spectral radiant characteristic curves and datasheet of several battlefield targets are given the anti interferential characteristics of a missile is analyzed.

    给出几种战场目标光谱辐射特性曲线测试数据表,对型导弹抗干扰特性进行分析

    dict.cnki.net

  • Spectral reflectance characteristic of vegetation was introduced. The advantage and disadvantage of several vegetation indexes in common use were summarized.

    介绍了植被光谱特征概述了几种常见植被指数及其优缺点

    www.magsci.org

  • The influence of random signals on the power spectral density characteristic of switching function is studied and a practical design of randomized PWM is proposed.

    分析随机信号开关函数功率密度特性影响,据此提出随机调制技术实用化设计方法

    www.epae.cn

  • Objective: To describe the theory, scientific significance, distinguishing features and authentication feasibility of TCHMs by spectral fingerprints of characteristic general constituents.

    目的论述中药材特征性成分指纹鉴定理论科学意义特色及其可行性

    d.wanfangdata.com.cn

  • PCA is sufficient for reducing data volume, however it fails to preserve the spectral and local characteristic of the original data.

    主成分变换可以好的压缩信息但由于全局性,使得光谱特征局部特征没有被更好保留下来

    www.boshuo.net

  • You can easily learn to correlate characteristic spectral features with molecular structure.

    可以轻易地分子结构独特谱学特征联系起来。

    www.myoops.org

  • Based on the analysis of geometric attributes and characteristic of spectral Angle mapping, a novel similarity measure is presented in this paper.

    分析传统光谱制图方法几何属性相似性度量特点基础提出一种新的光谱相似性度量方法

    dict.cnki.net

  • A new, indirect method to estimate the error characteristic of the spectral distribution of color video camera is proposed in this paper.

    本文提出一种利用间接推定摄像机光谱特性误差特性方法。

    dict.cnki.net

  • The experiment results show that the new technique outperforms the conventional spectral subtraction methods in spectrogram characteristic, output signal-to-noise ratio (SNR) and aural performance.

    实验结果表明算法传统相减算法有更优的特性、更高的输出更好的听觉性能

    dict.cnki.net

  • The Raman micro-spectroscopy used in this study detects sub-cellular components using the spectral fingerprints of molecules based on their characteristic vibrations.

    显微光谱根据基于分子振动特征光谱指纹来检测亚细胞成分

    www.jiai-sh.com

  • In this thesis, Spectral method is used to analyse the scattering characteristic of Frequency Selective Surfaces (FSS).

    本文用谱域方法研究了频率选择表面(FSS)散射特性

    dict.cnki.net

  • The logic function classification with spectral coefficients is discussed and the definition of characteristic threshold logic function is given.

    讨论了逻辑函数系数分类给出了特征阈值逻辑函数定义

    www.dictall.com

  • The experimental results show that it is correct and feasible, and can extract characteristic information of the rotating speed spectral map effectively.

    试验结果表明,变窗移傅里叶变换算法正确可行有效提取旋转机械振动信号转速特征信息

    dict.cnki.net

  • The pattern recognition technology of the mineral oil has been researched. It aims to extract the data which can reflect the intrinsic characteristic of the mineral oil from the spectral data.

    研究矿物油种类模式识别技术光谱数据提取、选择能够反映特征光谱数据

    anybing.com

  • Then human auditory masking is studied where its characteristic is combined with the multi-band spectral subtraction method.

    其次,本文研究听觉掩蔽特性听觉掩蔽效应应用频带的语音增强方法中。

    www.fabiao.net

  • This paper proposes the introduction of mixed spectral differences of pixel as a new measurement which also has whole characteristic.

    文中提出引入像素光谱角度作为混合差异性测量同时具有全局特性

    www.boshuo.net

  • The characteristic of SC noise manifests the dynamic responses of typical SC spectral structures to the seed pulse amplitude noise that are closely related to the evolution.

    超连续噪声特性光谱演化状态密切相关光谱特征结构抽运脉冲强度噪声响应动态表征

    dict.youdao.com

  • There is explicit characteristic of correspondence reflecting the droplet transfer among the electric, spectral and image information based on time information fusion.

    多聚焦图像光谱彩色图像分别采用计算图像信息均方根误差、计算图像平均梯度的方法融合性能进行评价。

    www.dictall.com

  • In allusion to the characteristic that Geocentric motion is piled up by several periodic motions, the spectral analysis by wavelet and ar were discussed in turn in this paper.

    针对地球质心运动主要多种周期运动叠加特点依次讨论了分析方法中的AR模型分析波谱分析方法。

    dict.cnki.net

  • In this paper, based on the random characteristic analysis of Tianjin Hospital Earthquake waves of Tangshan aftershock Three dimension acceleration power spectral density ratio have been presented.

    根据唐山余震天津医院实测地震波随机特性分析提出了地面运动加速度功率密度的建议比值

    dict.cnki.net

  • The frequency spectral analyses show that the second ignition method could weaken and restrain the high frequency vibration, improve the characteristic of vibration in high loading density charge.

    压力波频谱分析表明装填密度药中,采用第二点传火方案削弱抑制压力波的高频振荡成分,改善振动特性

    d.wanfangdata.com.cn

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