A novel, widely tunable narrow bandwidth pulsed dye laser 一种新型的可调谐窄带脉冲染料激光器
Since a relatively narrow bandwidth is involved, it is also likely that ac excitation also offers greater immunity to RF interference than dc excitation. 因为包含相对地狭窄的带宽,并且是可能的交流励磁为射频干涉并且提供比较伟大的安全性直流励磁。
However, the fine structure of high resolution spectrum in a narrow bandwidth is required in some applications. 在一些应用中,需要了解的仅仅是某一窄带内的频谱精细结构,要求频谱的分辨率较高。
Response of a two-Level Atom to a Narrow Bandwidth Squeezed Vacuum Excitation 二能级原子对窄带压缩真空激发的响应
Single transverse mode narrow bandwidth pulsed tunable dye laser with hollow circular dielectric waveguide 腔内带圆形空心波导的可调谐窄带脉冲染料激光器
If the wave packet has a narrow bandwidth, it will extend over a large region of space and time. 如果包带的带宽很窄,那么它将占据一个很大的空间和时间区域。
Underwater acoustic channel is a time-space-frequency variant channel, having a character for narrow bandwidth, high ambient noise level and strong interference of multipath. 而由此构成的水声信道是一个空间与频率响应随机快速变化的传输信道,存在窄带、高噪及强多途干扰。
Simulated are silicon-based guided-mode resonant grating filters with narrow bandwidth for C-band optical communication. 结合严格耦合波理论和遗传算法对C波段硅基导模共振滤波器进行了模拟分析。
With the narrow bandwidth of microstrip antenna, a microstrip antenna with the substrates of double negative media is designed by the software HFSS which is based on finite element method. 针对微带天线带宽较窄的问题,采用基于有限元法的HFSS软件,设计1种以双负材料为衬底的微带天线。
The more narrow bandwidth selected, then the higher the frequency resolution, but this time to be testing to cover the entire frequency Fan stressed the need to filter the number of very substantial. 所选带宽越窄,则频率分辨力越高,但这时为覆盖所要检测的整个频率范调,所需要的滤波器数量就很大。
A narrow bandwidth double clad fiber ( DCF) laser is reported. 报道了LD泵浦的窄线宽双包层光纤(DCF)激光器。
Caching of frequently accessed data is an important technique that reduces the connection on the narrow bandwidth wireless channel. 移动客户端数据缓存技术是在目前狭窄的通信带宽中减少数据连接次数的一个重要技术。
Using this arithmetic, the author has reached the real-time transmission of B-ultrasonic video through narrow bandwidth channel. 利用该算法,作者实现了B超视频在低带宽信道中的实时传输。
However, poor performance hardware of mobile terminals, narrow bandwidth of wireless networks and slow transmission of spatial data make enormous challenge for the application of mobile spatial information services. 然而,移动终端设备硬件性能差、无线网络带宽窄、空间数据传输速度慢等对移动空间信息服务的应用提出了巨大的挑战。
The experimental results show that the single transverse mode narrow bandwidth laser output can be obtained while maintaining a high lasing efficiency. 实验结果表明:该激光系统能获得基横模、窄频带和高效率的激光输出。
In the process of data dissemination, the technology of data compression offers a primary solution for conflict between the narrow bandwidth and a mass of data, and as base of feasibility of data dissemination, the technology of data encryption assures data transmission security. 在网络数据分发过程中,数据的压缩技术是解决网络带宽小与数据量大之间矛盾的主要手段,数据加密技术则保证了数据传输的安全性,是网络数据分发可行性的基础。
The Realization of Narrow Bandwidth FSK Modulation in Radio Paging System 无线寻呼系统中窄带FSK调制的实现
The image transmission based on network is important to accident succor under the condition of narrow bandwidth. 在窄带宽环境下,基于网络的静态图像传输在事故救援中具有很重要的作用。
This provides a possibility for laser outputs of both high power and narrow bandwidth to be obtained with one laser oscillator. 提供了用一台激光振荡器同时获得高功率、窄带宽输出的可能性。
Using MPEG-4, the data can be used at the optimum quality of the images by very narrow bandwidth. 这种压缩解压缩技术,对传输速率要求较灵活,除了能实现高清晰度的视频压缩,也可以利用很窄的带宽,通过帧重建技术、数据压缩,用最少的数据获得最佳的图像质量。
However, classical microstrip antenna has major drawbacks such as narrow bandwidth and low efficiency. 然而,普通的微带天线有一些诸如窄带宽和低效率的主要缺点。
On the other hand, wireless communication for higher data rate and broader bandwidth is more and more demanding, but the low data rate and narrow bandwidth of microwave communication can not meet the needs for future high speed and broadband communication. 另一方面,无线通信对于数据传输速率以及带宽的要求越来越高,微波通信低的数据传输率以及窄的带宽已经无法满足未来高速宽带无线通信发展的需要。
However, the traditional electrical interconnection limited by narrow bandwidth, the rate that is difficult to meet the higher requirements and electromagnetic compatibility issues had become a bottleneck technology in transmission, so that it can not meet this growing demand. 然而传统的电互连在传输上存在着带宽有限、速率难以达到更高的要求和电磁兼容等问题,存在不可突破的瓶颈,使其无法满足这一日益增长的带宽需求。
Restricted by low-frequency available and narrow bandwidth in acoustic channels, acoustic voice communication puts forward a high demand on voice data compression. 由于受到水声信道中可利用的工作频率低、带宽窄的限制,水声语音通信对语音数据的压缩提出了较高的要求。
Integration is the developing direction of optoelectronic devices, and the development of DWDM technology also calls for narrow bandwidth filter. With the development of these two technologies, semiconductor micro-cavity narrow bandwidth filter is in great need. 大规模集成是光电子器件的发展方向,密集波分复用技术的发展也对滤波器的带宽提出了严格的要求,随着这两个技术的发展,半导体微腔窄带滤波器也迅速发展起来。
Narrow bandwidth photon pairs are needed in order to use the atomic ensemble as the quantum repeater. 而要使用原子系综做为量子中继就要求连接中继的光子对必须是窄带光子对,能跟原子系综有效耦合。
Further more, the algorithm needs narrow bandwidth and simple to control and therefore has strong advantages. 而且本算法又有占用带宽窄,控制方法简单等优点,故有很大的优越性。
Frequency hopping system is instantaneous narrow bandwidth communication system, so it is easy to be compatible with narrow bandwidth communication system. A PLC system based on FH technology is presented here. 跳频系统是瞬时窄带系统,易于与目前的窄带通信系统兼容。给出了一种基于跳频技术的电力线载波通信方法。
The conventional phased array radar has many advantages, but due to the limitation of the aperture fill time, it can only work in a relatively narrow bandwidth, which limits its applications in the field of wide-band and ultra-wide-band. 传统相控阵雷达虽然具有众多的优点,但是由于受到孔径渡越时间的限制,只能工作在比较窄的带宽下,从而限制了它在宽带和超宽带领域的应用。