Although FFT is the efficient approach in harmonic measurement fields, it results in spectral leakage, which affects the accuracy of measurement.
FFT是谐波测量中使用最广的方法之一，但利用其进行测量时存在着频谱泄漏，影响测量结果准确性。
Compared with the classification method purely based on spectral character, this method can improve the classification accuracy and refine object classes in some extent.
与单纯基于光谱特征的分类方法进行比较，该方法在一定程度上改善了分类精度，细化了地物类别。
The results showed that the spectral interferences between rare earth elements can be effectively eliminated by this technique, thus improving the accuracy of analysis.
结果表明，联用技术可以有效地消除稀土间的光谱干扰，从而提高分析的准确性。
The results indicate that the LPWA has much better reproducibility and accuracy than the major frequency of power spectral density in reflecting the properties of bubble phase.
结果表明，它具有比传统的功率谱主频好得多的统计重复性，能更准确地反映气泡相的特性。
In order to obtain higher measured accuracy of star's positions by the low-latitude meridian circle, it is needed to measure the astronomical refraction to the stars of different spectral types.
提出在低纬子午环上，对不同光谱型的天体测定出天文折射，以提高星位测定的精度。
The test result of spectral wavelength accuracy, spectral resolution, scene shift, imaging quality for this system is satisfactory.
对系统在光谱扫描精度、光谱分辨率、图像漂移、图像质量方面的性能进行测试都得到了良好的结果。
In traditional spectral unmixing method based on linear spectral mixing model (LSMM), unmixing accuracy is deteriorated both by the deficiency of the model and the participation of unrelated classes.
在传统基于线性光谱混合模型的光谱解译方法中，模型自身的不足以及在光谱解译过程中无关类别的参与都影响着解译效果。
The high thickness accuracy and process stability are exemplified by the measured spectral performance of multilayer stacks with about 200 single layers.
通过测量由约200个单层构成的多层结构的光谱特性，证实了良好的膜厚精确度和过程稳定性。
This model can separate spectral mixed pixels with very high accuracy.
该模型可以高度精确地分离出波谱混迭的象元。
Numerical results demonstrate that the phase variations caused by multipath time delays may influence accuracy of the mean of time synchronization error spectral estimation.
数值计算结果表明，多径分量的相位变化会影响时间同步误差谱估计均值的准确性。
Spectral leakage caused by synchronous error in no-synchronous sampling is an important reason, which reduces the accuracy of spectral analysis and harmonic measurement.
采样不同步产生的同步误差是造成频谱泄漏和影响谐波分析准确性、检测精度的重要原因。
But sometimes some different crop informations mix up for the similar spectral characters in the image so as to decrease the accuracy of crop identification.
由于某些同期农作物在特定时期特定光谱段具有相似的光谱特征，在图像解译和分类时容易混淆，降低了农作物识别的精度。
The molten steel sampler has the advantages that: the molten steel sampler makes a sampled sample be convenient for spectral analysis, reduces the grinding time and improves the accuracy.
有益效果是该钢水取样器使取成试样便于光谱分析，减少磨研时间，提高准确性。
To raise the accuracy and precision of EDXRF and reduce detection, it is one of key measure that rising source power of spectral X-ray.
为了提高X射线荧光分析仪的准确度、精确度与降低分析检出限，有效地提高目标元素特征X射线的激发效率是关键性措施之一。
Our two improved spectral clustering algorithms use the limited computing resources (e. g. : memory, CPU) to maximize the accuracy of spectral clustering.
本文提出的两个算法能够在有限的计算资源(例如：CPU和内存)的条件下最大化谱聚类的聚类精确度。
The numerical experiments demonstrate that the new pseudo-spectral method has a high accuracy.
数值实验表明，该方法具有很高的精度。
Moreover, since the all-phase preprocessing can suppress the individual harmonics' spectral interference on the fundamental wave, the accuracy is greatly enhanced.
由于全相位预处理抑制了各次谐波对基波的干扰，因而大大提高了测量精度。
Moreover, since the all-phase preprocessing can suppress the individual harmonics' spectral interference on the fundamental wave, the accuracy is greatly enhanced.
由于全相位预处理抑制了各次谐波对基波的干扰，因而大大提高了测量精度。
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