Hypersperctral remote sensing has two distinct characters that the band number is more than multispectral remote sensing and the width of band is narrow.

波段数目多和波段宽度窄是高光谱分辨率遥感的两个显著特点，常规的用于分析的波段组合方法在信息的利用上是不充分的。

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The key technique of this new filter is how to achieve the extreme narrow band-pass width and a slight deviation of central frequency.

如何实现极窄的通带宽度和极小的中心频率偏差是研制中所解决的关键技术问题。

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The invention realizes three-band output, and the cavity structure can ensure high energy and narrow pulse width three-band laser output and also can reduce element damage.

本发明实现三波段输出，此腔型设计既能保证高能量、窄脉宽三波段激光输出，又能降低元件损伤。

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