查询词典 spectrum

A new method for multi-wave band spectrum recognition of landmark images is suggested using improved BP network.

提出了一种基于改进后的BP人工神经网络的地物影像的多波段光谱识别新方法。

Light visible to human eyes however occupies only a very narrow band in the whole electromagnetic spectrum.

然而，人眼可见的光在整个光谱中只占一个非常狭窄的频段。

This study aims on the spectral features and sensitive spectrum wave band in the apple florescence.

旨在探索苹果花期的光谱特征和敏感波段。

But Astropulse searches for broad-band transmissions that are spread across a 2.5 MHz band of the spectrum.

但是 Astropulse 搜寻的是分布在一个长 2.5 MHz 的频率区间的宽频带信号。

It still backs 4 spectrum band.

它还撑持4条频谱带。

All band interference affects the entire spectrum range.

所有频带干扰影响整个频谱范围。

Furthermore,the of wave numbers of every band spectrum was derived.

但是，电子光谱既包括电子能级间的跃迁，也包括振动能级和转动能级的跃迁，难以对它进行标识。

Chaotic signal with continuous wide band frequency spectrum is not periodic and is similar with noise signal.

混饨同步问题的提出掀起了混饨在保密通信方面应用研究的热潮。

Computer simulations show that it is superior to the conventional approaches in most cases and thus is a good approach for narrow - band interference suppression in spread spectrum systems.

通过计算机仿真可以看出，在多数情况下它比传统方法的性能优越，这表明它是一种对于扩频系统中窄带干扰的抑制的好方法。

So MIMO systems theoretically can achieve very high data transmission rate on band limited frequency spectrum.

采用该技术不仅能在有限的频带上实现高速率的信息传输，而且还能够改善无线通信系统的性能。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。