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Hubble was originally designed to observe in the visible and ultraviolet parts of the spectrum, but a 1997 mission added an infrared observing capability.
哈勃望远镜的最初设计是只能观察光谱中的可见光和紫外线部分,后来在1997年增加了红外观测能力。
This paper is to offer the idea which can make Mossbauer spectrum system high in capability but low in cost.
本文提出了自制高性能价格比的穆斯堡尔谱系统的整体构想。
As a result, the computer simulations show that the LPI capability of the new DSSS modulation become more effective within the same bandwidth and Spread Spectrum gain.
计算机仿真结果表明,在调制带宽或扩频增益不变的前提下,提高了DSSS调制信号的低概率截获性能。
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