放射源的辐射指纹能起到标识和鉴别放射性物体的作用。
Radiation fingerprints sometimes can be used to label and identify the radiation resources.
光传感器目标识别则是在取得目标的反射特性和辐射特性（光谱）后提取其特征进行识别。
Optical sensor target recognition extracts the characteristic of target to perform target recognition after having acquired its reflection and radiation (spectra) characteristics.
线谱是船舶辐射噪声中重要的特征信息，线谱提取是水中目标识别的关键技术。
Line spectra provide significant information in ship-radiated noise. Extracting spectral lines from ship-radiated noise is a key technique in identification of underwater targets.
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