The spectrum feature of water in dalian Bay is also analyzed.
第六章介绍数据采集与处理，分析了大连湾水体光谱特征。
Conclusion Accurate differential diagnosis could be made with analysis for frequency spectrum feature with color Dopp...
结论通过对浅表肿大淋巴结的超声表现综合分析，可以做出较准确的鉴别诊断。
Spectrum feature analysis of the transducer apparatus is also conducted with this approach and thus achieves the best testing status.
利用超声频谱分析法对换能器进行频率特性分析，找出适合检测的最佳状态。
Finally, it presented an example of main shaft carbon sealing monitoring and diagnosis and the spectrum feature analysis based on the data measured.
最后给出了主轴碳精密封监测诊断实例和实测数据频谱特征分析。
In this paper, we have established a database system facilitating the inquiry of the geographic object "s spectrum feature on the basis of the present study results."
结合当前地物波谱的研究现状及成果，建立了一个便于查询山东科技大学地物波谱特性的数据库系统。
It is very necessary to extract spectrum feature and compress spectral data, that is, a large spectrum dataset can be represented by the linear combination of some eigenvectors.
所以，对光谱数据进行特征提取、实现数据压缩是非常必要的，即将一个大光谱数据集表示为几个特征矢量的线性组合。
Methods The manifestation, internal echo, the L/T ratio, CDFI and RI frequency spectrum feature of the superficial lymph nodes were studied with high frequency and color Doppler ultrasound 89 cases.
方法本组89例，应用高频率的彩色多谱勒超声检查肿大淋巴结的形态及内部回声、纵横比（L/T）、彩色多谱勒血流显像（CD FI）及阻力指数（RI）的频谱特征。
The common pathophysiological feature of the ACS spectrum is the rupture or erosion of atheromatous plaque.1.
ACS的共同病理生理学特征是冠脉粥样斑块的断裂或糜烂(文献1,2)。
In the scheme, a set of feature parameters are extracted from signal spectrum and constellation based on the differences between digital mixed signals and common digital modulation signals.
该方案利用数字混合信号与常用数字调制信号在信号频谱以及星座点的差异提取特征参数进行自动识别。
The fault is diagnosed by extracting the fault feature component from the frequency spectrum of the modulated signal.
通过对调制信号作谱分析，以其频谱中是否存在某种故障的特征频率分量来诊断有无该种故障。
The principle of computer-RS classification recognizing is using the difference of feature of structure and spectrum energy to recognize information of surface features.
计算机遥感分类识别原理，是利用地物的光谱能量特征差异性和结构特征差异性来识别地物信息。
To extract early fatigue feature of engine bearings, the paper presents an average spectrum method with double-wavelet and the diagnosis examples are used to show the validity of the method.
为了提取机车滚动轴承早期损伤类故障特征，本文提出了一种双重小波平均谱方法，并通过诊断实例验证了方法的有效性。
On the basis of building the ship radiated-noise model, the mathematical expectation expressions of ship radiated-noise demodulation spectrum harmonic clan feature were educed.
在建立舰船辐射噪声仿真模型的基础上，推导了单、双螺旋桨舰船辐射噪声调制谱谐波族幅值特征的数学期望表达式。
The spectrum signal was pretreated and several key characteristic parameters were extracted and then a set of new feature vector was obtained by reducing the dimensions.
首先对光谱信号进行预处理并抽取了多个关键性的特征参数，通过降维分析得到一组新的特征向量。
Computing formula of frequency-division of anomalous cosine transform spectrum is given by analyzing the basic feature of cosine transform spectrum for the anomaly of erect rectangular column.
通过分析直立矩形柱体异常的余弦变换谱基本特征，给出了异常余弦变换谱的分频计算公式。
Spectrum analysis is the most important branch in radar signal processing and significant of radar target classification and feature detection.
谱分析是雷达信号处理的重要组成部分，对目标分类、特征检测均有重要意义。
The result shows that, compared with the time-wavelet power spectrum, the scale-wavelet power spectrum has a higher recognition accuracy and smaller dimension of feature vector.
结果表明，尺度-小波能量谱和时间-小波能量谱相比有较好的分类效果和较低的特征维数。
Research result showed that the vibration-tapping torque signal could be estimated accurately and validly by this strategy and the clear feature spectrum line was obtained too.
结果表明，该方法能够准确、有效地估计出振动攻丝扭信号，获得清晰的特征谱线。
Through frequency spectrum analysis, the causes of sudden vibration of the unit are found out, and confirm that has the feature of oil film vibration, and then is eliminated.
对机组突发性振动的成因进行了频谱分析，确认油膜振荡的振动特征并加以消除。
In recent years, the ICA is used to extract the feature of the spectrum data in the field of the color science.
近几年，也将ICA用于颜色科学领域的光谱数据的特征提取。
The analysis indicates that the inverse spectrum has a noticeable feature to distinguish the influence of the side frequency and identify the transfer function of the testing system.
分析表明倒频谱在识别边频及测试系统传递函数的影响方面具有显著的特点。
The analysis indicates that the inverse spectrum has a noticeable feature to distinguish the influence of the side frequency as well as the transfer function in measuring test system.
分析表明倒频谱在识别边频及测试系统传递函数的影响方面具有显著的特点。
A new segmentation of image based on the feature of reduced texture spectrum is proposed.
提出了基于约简纹理谱特征值的分割方法。
By studying the principle of hearing system in identification of sound signal, a method of feature extraction for passive sonar target based on critical band spectrum energy is proposed.
利用被动声纳目标辐射噪声特征主要集中在低频部分的特点，结合听觉系统识别声音信号的原理，提出了一种被动声纳目标临界频带频谱能量的特征提取方法。
Analyses of the leak signals both in the time domain feature parameters and the spectrum analysis is made to seek some basic characteristics of the leak signals.
从时域特征参数和频谱分析两方面对泄漏信号进行了分析，研究了泄漏信号的基本特征。
The feature that structures have the selectivity to the earthquake motions frequency and structure response has the close corresponding relation with instantaneous energy spectrum is pointed out.
指出了结构对地震动的频率具有选择性，结构的响应与瞬时能量谱之间具有密切的对应关系。
The paper introduces a new feature compensation method which will induct the relativity of the prediction of spectrum based probability model in detail.
在概率模型中，给出了引入倒谱预测值的动态相关性来进行特征补偿的方法。
The energy spectrum variations as the damage dynamics feature have good sensitivity. Therefore it can detect very tiny cracks in cylindrical composite vessel.
将小波变化得到的动力响应的能量谱作为损伤检测的特征量，具有很好的灵敏度，能检测到复合材料容器中非常细小的裂纹。
Wavelet transform has a good analyzing feature and a good time frequency localization. Spectrum whitening is a effective tool of frequency compensation in high resolution processing.
小波变换具有分析性质好和时—频局域化好的特性，而谱白化方法是高分辨处理中一种有效的频率补偿手段。
In the hyperspectral remote sensing, the continuum removed methods is used only with the spectrum of a single pixel to analyze spectrum and extract the feature bands useful with the classification.
在高光谱遥感中，包络线消除法一般仅局限于对单个像元的光谱进行光谱分析，从中提取出有助于分类识别的特征波段。
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