During the information detection and discrimination, the remote sensed data always represents three important characters: space character, spectral character and time character.
遥感数据源在信息提取和识别的过程中主要表现为三大特征：空间特征、光谱特征和时间特征。
The operating range for extended target is calculated by considering of the target finding ability of eyes, contrast of target luminance, discrimination level and detection probability.
并综合考虑人眼的目标发现能力、目标的亮度对比度、观察等级和探测概率的要求，计算出面源目标的作用距离。
Based on the UWB radar system, the emitting waveform design and signature waveform detection are discussed respectively in this paper to realize the detection and discrimination of targets.
本文在超宽带雷达体制下分别从发射波形设计和特征波形检测两个角度来实现目标的检测和识别。
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