This paper studies beam-space MUSIC for direction-of-arrival estimation of underwater targets.
本文针对水声设备的实际应用,研究了波束域高分辨方位估计的MUSIC方法。
The adaptive nulling and interference localization based on beam-space of satellite planar array multi-beam antenna are investigated and some simulation results are also presented.
研究了基于卫星平面阵列多波束天线波束空间的自适应调零和干扰源定位技术并给出了仿真结果。
At last, experiments are carried out in a water tank. Experimental results show that the beam-space MUSIC algorithm has high resolution ability and can bear preferably with array modeling errors.
进行了消声水池实验,结果表明波束域高分辨MUSIC法分辨力高,对阵列误差具有较大的宽容性。
The noise in constant beam-width beam space is spatial correlative and color (non white), which affects the performance of wide-band-beam-space high resolution DOA (Direction of Arrival) estimator.
恒定束宽波束域噪声是空间相关的非白噪声,这给宽带波束域高分辨方位估计方法的性能带来影响。
As a method of spanning space, the arch can support greater weight than a horizontal beam.
作为一种跨越空间的方法,拱能够承受比水平梁更大的重量。
It transforms the thin wisp of hydrogen gas that permeates interstellar space into an intense radiation beam that would kill humans within seconds and destroy the spacecraft's electronic instruments.
根据这个理论贯穿于整个宇宙空间的稀薄氢气会转化成强烈的辐射光线形式,将在几秒内杀死人类并且毁坏太空飞船的电子仪器。
A leading American power company is hoping to turn science fiction into reality by supporting a project to set up solar panels in outer space and beam the electricity generated back to Earth.
美国一家领先的电力公司正在积极支持一项有望将科幻变为现实的计划,该计划将在外层空间设立太阳能电站,再将转化成的电能传回地球。
By contrast, Voyager 1, the most distant functioning space probe, is using an extremely weak transmitter to beam radio messages back to earth across 10 billion miles of space.
与此形成鲜明对比的是,最遥远的旅行者1号太空飞船在飞出100多亿公里之外,还能利用极其微弱的发射器将无线电信号传回地球。
Finkelstein's institute runs a program launched in the 1960s at the height of the Cold War space race to watch for and beam out radio signals to outer space.
芬克尔斯坦所在的研究所在20世纪60年代冷战时期的太空竞赛高峰期发起了一个向外太空收发无线电信号的计划,该计划目前还在进行中。
The space-time ripples cause the distance measured by a light beam to change as the gravitational wave passes by, and the amount of light falling on the photodetector to vary.
时空涟漪使得用光束测量的距离像引力波通过那样变化,同时使得落在光电探测器上的光量发生变化。
In his book Autobiographical Notes, Einstein recalls how he once daydreamed about chasing a beam of light as it traveled through space.
在他的著作《自述注记》中,爱因斯坦回忆道他当时幻想在宇宙中追逐一道光线。
According to a statement, the new neutron beam line will replicate the cosmic radiation affecting microchips from 100 years of flying time in the space of an hour.
根据一项声明,新的中子束流线将复制宇宙辐射的影响,从100飞行一小时时空年芯片。
A project has been launched in the UK to compile a digital message from ordinary people, and beam it into space.
英国日前启动一个项目将普通百姓的声音发送到宇宙中去。
Beam pattern null in the direction of the jamming is formed by a space filtering and assisted receive channels to suppress the jamming.
它是采用空间滤波技术,通过辅助通道在干扰方向上形成波束图的零点来实现对干扰信号的抑制。
Beam pattern null in the direction of jamming is formed by space filtering and assisted receive channels to suppress the jamming.
它采用空间滤波技术,通过辅助接收通道在干扰方向形成波束图的零点,实现对干扰信号的抑制。
We suggest that under the premise of structural strength, using porous beam to integrate pipeline layout in order to release space height effectively.
我们建议在保证结构强度的前提下采用多孔梁以整合管线布置,能够更有效的释放空间高度。
Because light travels in a straight line through the contours of space-time, a light beam will curve where space-time curves, this curving was first measured in 1919.
因为光沿时空走直线,所以光线在时空弯曲的地方会弯曲。这现象在1919年首次被观测到。
The equations of caustic curve and its initial curve for a crack illuminated by an oblique incident light beam in reflection arrangement were deduced using the space analytic geometry method.
本文用空间解析几何方法,推导了在一般非平行斜入射光条件下,裂纹体表面所形成的反射焦散线和初始曲线的方程。
This provides both direct functional lighting for dentists at work, as well as diffusing into the wider room to brighten up the space around each beam.
这就给牙医的工作提供了直接的功能性照明,同时光照扩散到更大的房间里,照亮了梁周围的空间。
Finally TAT software framework for the space structure, the framework of the output beam reinforcement beams.
最后用TAT软件进行框架的空间结构计算,输出框架梁柱配筋梁。
The wall is easily detected from space by radar because its steep, smooth sides provide a prominent surface for reflection of the radar beam.
城墙很容易被雷达探测到,因为城墙的竖直光滑的平面提供了一个反射雷达波束的突出表面。
The nonlinear equation of the guyed mast is presented based on calculation models of space cable and beam elements.
将桅杆结构离散为空间纤绳单元和梁单元计算模型,建立了桅杆结构非线性平衡方程。
Smart antenna using digital signal process technique, produces space directional beam, and utilizes space filter ability for improving the performance of CDMA systems.
智能天线利用数字信号处理技术,产生空间定向波束,利用其空间滤波特性可以提高CD MA系统的性能。
Structural elements contain bar, plane beam, space beam, triangular and rectangular plates with membrane stresses, rectangular plate element with bending deformations.
结构元素包括杆元、平面梁元、空间梁元、平面三角板元、平面矩形板元和弯曲矩形板元等。
In this algorithm, the spatial data from the elements of the vector sensors array are transformed to that in the beam space at first, then MVDR algorithm is used for the transformed data.
该算法首先将矢量水听器阵元的空间数据转换到波束空间,然后对转换后的数据再运用MVDR算法。
It must be pointed out that space coherence of beam is highly important for light beam quality evaluation.
此外还指出光束的空间相干性在光束空间质量评价中也应重视。
Researchers hope to use the satellite to beam communications from space to earth with quantum technology, which employs photons, or particles of light.
研究人员希望,通过量子技术,用这颗卫星将信息从太空传输到地球。量子技术会用到光子,也就是光的微粒。
In this paper a space analysis method for built-up system of arch trussed beam has been proposed.
针对拱桁梁组合体系桥梁,本文提出一种空间计算方法。
For soft beam-stiff half space system, wave speeds in beams are also critical velocities.
对软梁-硬半空间系统,梁的剪切波速和压缩波速也是临界速度;
For soft beam-stiff half space system, wave speeds in beams are also critical velocities.
对软梁-硬半空间系统,梁的剪切波速和压缩波速也是临界速度;
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