波段

It is expected that the results of this project will base theoretical and experimental research on THz waveguides and THz waveguided devices, and may lead to wide applications in defence and antiterrorism, atmospheric and astronomical science, sensing and imaging system, material and communication, biology and medicine.

本项目的研究成果为进一步开展太赫兹波段波导和波导器件的理论与实验研究打下了基础，将在国防与反恐、大气与天文学、传感与成像、材料与通信、生物与医学等方面具有应用前景。

But for the P band Ultra-Wideband Synthetic Aperture Radar image whose signal-to-clutter ratio is poor, the focusing result of PGA applied to it is not ideal.

对于信杂比较低的P波段超宽带合成孔径雷达图像来说，传统PGA算法的聚焦效果并不理想。

As substitute for fluorite lens, a double-layer DOE is used in a long focal-length apochromatic objective lens. The modulation transfer function of this hybrid optical system is suggested for evaluating diffraction efficiency of the multilayer DOE. The results show the diffraction efficiency has a wide and symmetrical distribution in the whole waveband.

利用双层衍射光学元件替代萤石透镜校正混合光学系统的二级光谱，设计并制作了一套长焦距物镜，并利用系统调制传递函数评价了多层衍射光学元件衍射效率，测试结果表明衍射效率在整个设计波段内以较高的数值平均分布。

We conduct a periodicity search with its ASCA data and XMM-Newton data in the period range of 0.1 sec to 100 sec.

我们使用ASCA和XMM人造卫星取得的数据来分析Geminga 在X射线波段的周期性行为，而我们选定探讨的周期范围为0.1秒到100秒之间。

Rain attenuation is a main factor that affects the communication capability and the quality of transmission in Ku-band satellite communication.

雨衰是影响 Ku波段卫星通信系统传输质量及系统性能的主要因素之一。

Rain attenuation is a main factor that affects the communication capability and the quality of transmission in Ka band satellite communication.

降雨衰减是影响Ka波段卫星通信系统传输质量及系统性能的主要因素之一。

Frequency range from audio, video, radio frequency to the microwave band.

频率范围由音频、视频、射频到微波波段。

The simulation study shows that linear polarization sensitivity of silvered orthogonal twin mirrors is better than that of aluminum or aurum mirrors at the range of 0.4μm～10μm, and the silvered orthogonal twin mirrors have less influence on polarization ratio than those of aluminum and aurum mirrors.

模拟计算结果显示：在0.4μm～10μm波段内，非理想正交镀银反射镜的线偏振灵敏度优于铝、金等正交反射镜，且对光束偏振度的改变最小，因此正交镀银反射镜在高精度偏振遥感探测中值得广泛应用；若把角度误差控制在0.5°内，则正交镀银反射镜的偏振特性对偏振遥感器的辐射度和偏振度影响很小，具有较好的消偏性能。

Secondly, the direct demodulation detection system of 8mm wave band 32-channel on the background of millimeter-wave focal plane imaging is built, according to millimeter-wave passive detection theory, at the same time, the principle experiment is carried out, and the basic theory of millimeter-wave detection are confirmed.

其次，根据被动毫米波探测理论搭建了以毫米波焦平面成像为应用背景的8mm波段32通道直接检波式探测系统，并进行了原理性实验，验证了被动毫米波探测的基本理论。

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。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。