查询词典 spectrum line

As we know the correct estimation of power spectrum is the precondition for the reappearance of power spectrum, so the typical method of estimation – Periodogram, is taken into consideration.

功率谱再现的前提是对功率谱做出正确的估计，因此本文首先对功率谱估计的经典法——周期图法进行了研究，并根据实验结果指出其在进行功率谱估计时的不足之处。

The bias of cyclic periodogram with ssinc window is analyzed in both spectrum frequency direction and cycle frequency direction, and that the TA cyclic spectrum estimation is unbiased is proved.

通过分析加ssinc窗的循环周期图在谱频率方向和循环频率方向的偏差，分析了TA循环谱估计是无偏估计。

MATLAB classical periodogram power spectrum estimate of the signal power spectrum estimation.

详细说明： MATLAB经典周期图法功率谱估计对信号进行功率谱估计。

The sensor's signals in flowmeter are processed digitally by means of the power spectrum analyzing method based on the periodogram spectrum method. The real frequency of signal is calculated, and the accurate volumetric flow is measured.

它采用周期图谱分析方法对涡街流量计中传感器的信号进行数字处理，准确计算出信号的频率，测出准确的体积流量。

The character of the target noise is studied systematically, especially the spectrum character of target noise are deeply analyzed. On the basis of it, the power spectrum of two sorts of target noise is estimated with the method of average periodogram using the actual measured data of target noise.

系统地研究了目标声场特性，对目标噪声的产生及其频谱特性进行了深入分析，在此基础上，利用目标噪声实测数据，采用加窗平均周期图法，对两类目标噪声进行了功率谱估计，并对其频谱特性进行了深入分析和研究。

Among so many synthesis methods for FGN, there are the spectrum-based approaches, spectral simulation and Paxson method, which features and the relation between are explored in this paper. Morever the spectrum-based estimation for hurst exponent, periodogram, is researched.

在众多的合成分形高斯噪声的方法中，研究了基于功率谱的FGN的生成算法，谱模拟方法和Paxson方法的特点以及联系，同时对基于功率谱的Hurst指数的估计方法，周期图法进行了讨论。

The bias of cyclic periodogram with ssinc window is analyzed in both spectrum frequency direction and cycle frequency direction, and that the TA cyclic spectrum estimation is unbiased is analyzed. The average method of cyclic periodogram is also derived in terms of STFT.

论文中通过分析加ssinc窗的循环周期图在谱频率方向和循环频率方向的偏差，表明TA循环谱估计是无偏估计，并根据STFT方法，推导了使方差得以减小的平均循环周期图方法。

In this paper, UV-vis spectrum, IR spectrum, viscosity measurement and ~1H NMR spectra of polymer were provided in order to show the characteristic of copolymer between pinene epoxides and maleic anhydride.

本文还使用紫外光谱、红外光谱、粘度测定、核磁共振等方法对共聚产物进行了分析，研究了环氧蒎烷与顺丁烯二酸酐共聚合产物的特性。

Although drummer like free expression, failing drum spectrum, but they can read the dark spectrum, and also understands music syntax, their main objective is to play into the drum of the stage play an important role.

虽然当时的鼓手们喜欢自由表现，不依鼓谱，但他们能看懂鼓谱，也了解音乐的句法，他们的主要目的是希望把鼓的演奏带入舞台扮演重要角色。

The size of tested field was measured using comparison between the tested field image caught through CCD and the plotting paper image when plotting paper was placed in the tested field position with no plasma jet; the emission intensity distribution of tested field was obtained using stepping motor taking fiber probe to scan tested field, and the spectrum analysis instrument was used to show the spectrum intensity information.

通过CCD获得的待测场图像与没有射流射出时在待测场处放置的坐标纸图像进行比对，测量了实际待测场的大小；利用步进电机带动光纤探针对待测场进行扫描，通过光谱仪获得了待测场的光强分布。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。