analyzing noise sources 噪声源分析
As for images after radiometric calibration, 3-dimention noise analyzing method is introduced. For image after geometric calibration, three performance parameter are used to evaluate the images, and algorithm of the paper is validated.
给出了常用的辐射质量评估方法；对辐射校］t后的图像，引进了三维噪声分析方法，起到了对图像辐射质量和辐射校计方法的评估作用；对几何校正后的图像，采用并计算了三个性能参数，验证了论文采用的校正算法的有效性。
参考来源 - Landsat7 ETM+数据处理技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The invention relates to a double-loop frequency synthesizer and a phase noise analyzing method.
一种双环路频率综合器及其相位噪声分析方法。
Therefore, deeply investigating and analyzing the character of random noise in working area and its relation with working factor have practical implication to better guiding field data acquisition.
因此，深入地调查和分析工区内随机噪音的特征及其与施工因素的关系，对于更好地指导野外数据采集具有实际意义。
Cosmologists usually consider the dust-emitted microwaves to be "noise" that obscures their data, worth analyzing only to erase from their measurements of the cosmic microwave background.
宇宙学家常把尘埃排放微波当作是影响他们数据的“噪音”，只有从他们对宇宙微波背景的测量中抹去才具有分析价值。
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