When you turn on a device controlled by the badge all the lights blink at a certain frequency that generates enough optical noise to defeat facial recognition systems.
当你打开了所有的灯闪烁徽章控制在一定的频率,产生足够的光噪声战胜面部识别系统的设备。
It is proved theoretically and experimentally that this method makes an order of magnitude improvement in reducing the laser noise for the optical stabilizer.
理论分析和实验都表明,采用该方法可使光强稳定系统压缩噪音的能力有数量级的提高。
NuCrypt's proprietary "AlphaEta" quantum-noise randomized, physical-layer encryption technology represents a new paradigm in ultra-secure, high data-rate optical communications.
NuCrypt公司专有的“AlphaEta”量子噪声随机物理层加密技术代表了超安全高数据速率光通信的新模式。
Optical flow or motion fields could theoretically be used, but they are extremely noise sensitive and their accuracy is limited due to the aperture and occlusion problem.
理论上可以使用光流或运动场估计进行分割,但其对噪声相当敏感,且分割精度也会因遮挡和孔径效应的影响而剧烈降低。
Besides multistage EDFA making the bandwidth reduced and noise increased, the material dispersion of optical fibers is also an important factor to affect WDM systems.
除了多级光纤放大器(EDFA)使带宽减小,噪声增大,光纤的材料色散也是对WDM系统影响的重要因素。
The noise of an optical receiver consisting of a surface emitting laser amplifier and a detector is enhanced by any lack of gain uniformity.
由表面发射激光放大器和检测器组成的光接收器的噪声因任何增益的非均匀性而增加。
Aiming at the noise jamming problems in acquisition of small current signals, an isolation and acquisition board for current signal is designed based on HCNR201 high-linearity analog optical coupler.
针对电流小信号采集中存在噪声干扰的问题,采用高线性度模拟光耦hcnr 201设计了电流信号隔离采集板。
The minimum noise design of the wideband optical receiving module plays an important role in the full optical communication system.
宽带光接收组件中前端电路的低噪声设计在整个光通信系统的研制中具有重要地位。
One of the key technology in coherent optical communication system is how to restrain polarization noise of the optical system.
光学系统偏振噪声的抑制是相干光通系统中的关键技术之一。
By this filter, the shift, scale and rotation invariant optical pattern recognition was realized with a high signal noise ratio of correlation output.
用这种滤波器实现了平移、旋转、尺度三重不变光学图像识别,且有较高的信噪比。
The filter used to suppress spontaneous emission noise of amplifier in optical communication system is also analyzed.
分析了采用滤波器来抑制光通信系统中的放大器自发辐射噪声。
The key of realizing the application in radar system shown in theories and tests is to carry out miniature optical terminal units which have low loss, low noise and large dynamic range.
理论分析和实验表明,制成低损耗、低噪声、大动态范围的小型化光端机是实现雷达系统应用的关键。
Phase noise in semiconductor laser due to external optical feedback is investigated theoretically.
本文在理论上研究了由于外部光反馈引起的半导体激光器的相位噪声。
Adopting noise initiation mode of stimulated Brillion scattering (SBS), the influence of focal length on optical limiting power and energy is numerically simulated.
采用受激布里渊散射(SBS)噪声起源理论模型,数值模拟了透镜焦距对SBS光限幅功率特性和能量特性的影响。
The transmission quality of DWDM system is affected by the damages from linear and nonlinear effects so the ratio of optical signal to noise is reduced and the bit error rate is increased.
DWDM系统的传输质量受到线性和非线性两类效应引起的损害影响,导致光信号噪声比下降,误码率增大。
The optimal intensity noise suppression of a Fabry-Perot (FP) laser is experimentally acquired by relatively strong external optical injection locking technology.
采用较强的外注入光锁定FP激光器,获得了理想的强度噪声抑制效果。
Based on the equivalent circuit model of a two-port optical receiver front-end, the relationship between the equivalent input noise current spectral density and the noise figure is analyzed.
根据光接收机前端等效电路模型,建立了噪声系数与等效输入噪声电流谱密度的关系。
The appearance of optical fiber communications greatly alleviate such problems as low transmission speed, poor Signal-to-Noise and easy disturbance which puzzle people.
光纤通信的出现大大缓解了长期以来一直困扰人们的传输速度低、信噪比差和易干扰等问题。
The light optical spot area and the optical intensity distribution can be adjusted through software. The non-uniformity of response and the SNR are influenced by the noise of the detector.
光斑大小和光强分布不均的影响可以通过软件校准,象限响应率不均和信噪比受探测器噪声以及处理电路噪声的影响。
On the basis of the quantum theory, the optical energy and various noise of CCD could be converted to equivalent electric charges, and then the facular detection model of CCD was proposed.
以量子理论为基础,把激光能量和各种CCD噪声都转换为等效电荷,在此基础上建立了CCD光斑检测模型。
In experiment, we research the optical spectrum and analyze the influence of driven current noise on optical spectrum linewidth of tunable DBR laser.
实验研究了可调dBR激光器的光谱特性,并分析了驱动电流噪音对可调d BR激光器线宽的影响。
The internal device such as noise and interference, such as optical pyroelectric sensor signal and transient.
内部由于器件等的噪声和干扰,如光热释感应器的信号瞬变等。
Since the downward conversion photon pairs have strong correlation in time, they can be used for noise - free optical communication.
由于下转换光子对具有很强的时间相关性,可用来进行无噪声的光通讯。
The optical fiber transformer based on an optic electric conversion with low noise gains voltage measurement accuracy of 0.2%, satisfying the requirements of transient signal measurement.
基于低噪声光电探测电路设计的光纤电压互感器可获得0 .2 %的电压测量精度,并满足暂态信号的测量要求。
The erasable optical disk with high recording density, high stability, high data transfer rate, high carrier-noise ratio and low error rate arc the main points in the research and development.
当前的研究与开发的重点是具有高记录密度,数据传输速率快、稳定性好、载噪比大和误码率低的可擦型光盘存储材料。
The double integration A/D converter and the electro-optical isolation device are used to reduce the mains noise and motor interference, which can significantly improve the accuracy of A/D conversion.
本设计选择双积分型A/D转换芯片,并采用光电隔离装置,有效地降低了电源噪声和电机干扰,大大提高了转换精度。
This paper introduces the technologies of remote pumped erbium-doped optical fiber amplifier, remote pumped optical fiber pre -amplifier, Raman noise filtering and forward error correction used in G.
文章介绍了采用远泵掺铒光纤功率放大技术、远泵掺铒光纤前置放大技术、拉曼噪声抑制技术和前向误码纠错等技术,工程上常用的G。
With the increasing use of optical coherence tomography, the study of the signal-to-noise ratio in low-coherence interferometry has been of increasing concern.
光纤低相干干涉技术已经被广泛用于高灵敏度的测量技术当中。
We show that the refular pumping statistics and atomic coherences can reduce the field noise of multiple one photon optical bistability, but can not result in field squeezing from an ordinary vacuum.
证明了亚泊松泵浦及原子的相干性可使多单光子双稳态的光场噪声降低,但不能产生光场的压缩效应。
We show that the refular pumping statistics and atomic coherences can reduce the field noise of multiple one photon optical bistability, but can not result in field squeezing from an ordinary vacuum.
证明了亚泊松泵浦及原子的相干性可使多单光子双稳态的光场噪声降低,但不能产生光场的压缩效应。
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