1) spectral parameter
谱参数
1.
Based on averaged power spectrum and least square algorithm, the deduced spectral parameter is further used to analyze the heart rate variability of congestive heart failure patients and normal people.
该文采用平均功率谱密度方法,分析了基于平均功率谱密度和最小二乘拟合法求正常人和心脏充血患者的心律波动信号的谱参数,发现根据谱参数可以定量地区分正常人与心脏充血患者:大部分正常人的心律波动信号的谱参数大于1,而大部分心脏充血患者的心律波动信号的谱参数小于1,该结论可为心脏病的诊断与预诊断提供一种辅助手段。
2.
Based on orthogonal wavelets and least squares algorithm, the deduced spectral parameter was used to analyze the heart rate variability of congestive heart failure patients and normal people.
在研究心律波动信号1/f噪声特性的基础上,以美国国家健康研究中心提供的心电图数据库为对象,提取了心律波动信号,进行正交小波变换,在所得细节小波系数序列的基础上,用最小二乘拟合法求取心脏正常人和心脏充血患者的心律波动信号的谱参数。
3.
The empirical relations between the spectral parameters, wind velocities and wind fetchs are presented from the laboratory experiments.
利用大型风浪水槽实测风浪资料，分析水槽环境条件下风浪谱的成长特征，给出谱参数与风速、风区之间的经验关
3) spectral-parameter
谱参数
1.
A class of Sturm-Liouville operators with spectral-parameter in two boundary conditionsⅠ
一类两个边界带谱参数的Sturm-Liouville算子Ⅰ
2.
To investigate a class of singular Sturm-Liouville problems with transmission conditions and spectral-parameter in one boundary condition,a self-adjoint linear operator A is defined in a suitable Hilbert space H such that the asymptotic analysis of such problem are transformed into those of operator A.
研究了一类具有转换条件且在一个边界条件中带谱参数的奇异Sturm-Liouville问题。
4) spectrogram parameter
声谱参数
1.
The other methods include: The conventional method of spectrogram parameters, the zero-pole model and the fractal method, the latter two were proposed by the present authors before.
这些方法包括 :传统的声谱参数法及以前提出的零极点模型法及分形分析法 。
5) signals spectrum parameters
波谱参数
6) spectral parameters
光谱参数
1.
The K, F, R, M and some other absorption bands were reasonably resolved from the absorption spectra of the colored crystals , and their spectral parameters were accura.
用解谱的方法,分别从着色氯化钾和溴化钾晶体吸收光谱中合理地分解出K、F、R、M和一些其它吸收带,并精确确定这些吸收带的光谱参数。
2.
Absorption peaks of F2 and F+3 color centers can be resolved efficiently from M absorption band in the crystals,and their spectral parameters were determined accurately by using spectral decomposition.
用解谱方法,将F2和F+3色心吸收峰从M吸收带中有效地分解出来,并精确地确定了其光谱参数。
补充资料：参数谱估计量
参数谱估计量
spectral estimator, parametric
参数谱估计量[印ectrai es七n.tor，稗r~tric;eneKTpa-肠n朋0”eHKan叩aMeTP“，ecKa，」 一个平稳随机过程(statfonary stochastic Process)的谱密度〔spectml density)f(劝对应于f(只)的某一确定参数模型(即在此假设下，函数f(劝属于一由有限个参数描述的谱密度的特定族)时的估计量.在求参数谱估计量时，观测数据仅用来计算模型的未知参数.于是估计谱密度的问题就化为估计这些参数的统计问题.实际中应用最广的参数谱估计量是最大嫡谱估计量(一一entropys详ctral estimator)，它相应于假定函数【f(劝〕一’是一固定阶数的三角多项式的平方.应用问题中常见的更一般的参数谱估计类是混合自回归滑动平均过程(献ed autoregressivemo-访ng一average Process)模型，即假定f(劝是两个固定阶数的三角多项式的平方之商(见【1]一【3」).
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