Experimental results show IL correction method can eliminate beam hardening effect and suppress the projection noise enlargement effectively in correction process.
实验结果表明,IL校正法能去除射束硬化的影响,并能有效地抑制校正过程中投影噪声的放大。
Additionally, the unit's rigid frame and beam chassis helps to reduce vibration and a low-leakage R-core transformer minimizes the interference of digital noise.
此外,该单位的刚架梁底盘有助于减少震动和低泄漏的R -核心变压器的干扰最小的数码噪音。
In the prediction of sleeper radiation noise, the finite element beam model of sleeper is more suitable.
最终得出在预测轨枕辐射噪声时,轨枕梁有限元模型更加适合。
There exists on optimal value of magnetic focusing field and beam voltage, which can minimize the ion noise amplitude.
束电流与束电压确定,存在最佳的磁场使离子噪声幅度最小。
Comparing the results between common beam forming and MVDR method, it shows MVDR method has higher resolution and can identify the complex noise distribution of the moving heavy d.
对重型商用车声源识别结果说明,利用最小方差无畸变响应估计能较常规波束成形更好地识别出噪声源。
Focus - Beam-forming creates a zone and suppresses noise outside it to enable whoever is speaking to be heard with amazing clarity.
焦点-波束形成创建一个区域,抑制噪音,让外面的不管是谁讲要以惊人的清晰听到。
The light amplification mechanism of fanning noise in doped lithium niobate crystals was analyzed and the light amplification competition between the signal beam and the fanning noise was discussed.
分析了掺杂铌酸锂晶体的扇形噪声光的形成机制,讨论了信号光与扇形噪声光之间的光放大竞争问题。
The transmitter beam is Gaussian for real satellite-ground laser communication system. The pointing jitter and atmospheric scintillation are the main noise sources for satellite-ground laser link.
实际星地光通信系统的发射光束为高斯型的情况下,跟瞄误差和大气闪烁是星地激光链路中的主要信道噪声源。
That enables use to be made of what was previously just irritating noise—the part of a radar beam that is reflected not from raindrops, but from fixed objects such as buildings.
这有助于分析以前恼人的噪音——这些噪音是雷达成像的一部分,不过不是来源于对雨点的反射,而来源于如建筑物之类的固体。
We show how to optimize a spatially smoothing adaptive array such that the white noise power in the array output, or the sidelobe levels of the adaptive array beam pattern are reduced.
我们指出如何优化空间平滑自适应阵列使得白噪声功率或者阵列的副瓣尽量降低。
As its structure character of beam pumping unit, vibration and noise happen on the joint of connection rod head and beam during operation.
游梁平衡抽油机由于其自身结构特点,在运行过程中,连杆上接头与横梁连接部分经常会出现振动和响声。
The two laser beam system has been used to measure the relative density of linen dust, with the feature of wide measurement range, good sensitivity and restraining the intensity fluctuation noise.
本文采用双光路激光系统,对亚麻尘的相对浓度进行了连续测量,具有测量范围宽、灵敏度好、抑制激光强度起伏噪声等特点。
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。
The atmosphere turbulence was seen as weak fluctuation turbulence, and Gaussian noise was used to simulate influence of atmosphere turbulence on transmission of laser beam.
假设大气湍流为弱起伏湍流,用高斯噪声模拟了大气湍流的影响。
This paper presents a method of calculation of the noise figure of power travelling wave tubes which employ a conical Pierce gun to produce the electron beam.
本文给出了采用球形收敛枪的功率行波管噪声系数的计算方法。
The influence of multi-beam interferences, and the relation between the signal to noise ratio and the random drifts of the scanning wavelength are deduced.
理论分析了法布里-珀罗腔多光束干涉所产生的干扰以及扫描过程中波长的随机漂移对输出信噪比的影响。
It is the key technology to detect and correct the phase noise of the fiber amplifier in coherent combining beam, the main source of phase noise in the fiber amplifier is the thermal effects.
光纤放大器相位噪声的探测和校正是光纤激光器阵列相干合成的关键技术,热效应是引起光纤放大器相位噪声的主要来源。
The problem how to select optimum of signal-to-noise ratio and laser beam divergence for laser range-finder is studied.
研讨激光测距仪的信噪比和激光发散角如何选取最佳值的问题。
When the downlink beam forming is applied in the wireless cellular network, the signals received by all mobile users must reach the provided signal to interference plus noise ratio.
在无线蜂窝系统中,当采用下行波束赋形技术时,所有用户所接收到的信号必须满足给定的信噪干扰比。
The operators themselves remain unaffected since the noise is contained in its focused beam.
而当噪音被包含进它的聚集的柱里时,操作者则不受影响。
A second problem is thermal noise, especially that caused by the laser beam itself: the laser spots hit the center of the mirrors, heating them unevenly and thereby deforming them.
干涉仪的第二个问题是热杂讯,其中以来自雷射光本身的热最是严重;雷射光点打在镜子中心使之温度上升,加热不均匀的结果,会导致镜面变形。
A second problem is thermal noise, especially that caused by the laser beam itself: the laser spots hit the center of the mirrors, heating them unevenly and thereby deforming them.
干涉仪的第二个问题是热杂讯,其中以来自雷射光本身的热最是严重;雷射光点打在镜子中心使之温度上升,加热不均匀的结果,会导致镜面变形。
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