固有噪声和量子噪声构成了医学X光影像系统的干扰噪声。
Disturbance noises in medical X-ray imaging systems consist of inherent and quantum noises, which obey random Gauss and Polsson distributions, respectively.
结果表明：量子噪声实、虚部互关联会增大激光强度的涨落。
The results indicate that the cross-correlations between the real and imaginary parts of quantum noise increases the laser intensity fluctuations.
对误比特率分析的结果表明，量子噪声是引起比特错误的主要因素。
By analyzing the bit error rate, the results show that the major factor causing quantum bit errors is quantum noise.
本文分析了激光源FM量子噪声对数字光纤相干通信接收机性能的影响。
This paper deals with the effect of FM quantum noise of laser sources on the receiver performance in coherent fiber-optic communication systems.
如果仅考虑振幅阻尼，结果表明热辐射与量子噪声对量子位的消相干产生影响。
The results show the thermal radiation and quantum noise can influence the qubits' decoherence when amplitude damping be included in the consideration.
用位移算符方法计算量子噪声的累加，同时建立了有衰减和噪声时的信道的量子模型。
With displacement operator method the total quantum noise is obtained, and a quantum channel model with attenuation and noise is proposed.
如果Hogan的想法是正确的，测高仪将能探测到时空结构中的量子噪声，给我们现有对宇宙的认知带来巨大的冲击。
If Hogan's idea is correct, the Holometer should detect this quantum noise in the fabric of space-time, throwing our whole perception of the Universe into a spin.
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。
NuCrypt's proprietary "AlphaEta" quantum-noise randomized, physical-layer encryption technology represents a new paradigm in ultra-secure, high data-rate optical communications.
运用WKBJ方法计算了电流平均值和电流平方的平均值，计算结果表明电流涨落是存在的，它是介观电路中主要的量子噪声。
By using the WKBJ method, the average of currents and square of the current are calculated, the results show the existence of the current fluctuation, which causes the noise in the circuits.
实验中，光电探测器的选取要满足以下基本条件：1、光电探测器的量子效率要足够高，从而在探测过程中减小对量子噪声的破坏；
The photo-detector must satisfy the follow basic conditions:1 The quantum efficiency of photo-detector should be high enough to reduce the influence of quantum noise;
这种改进方案对其它带有噪声的量子密码协议同样适用。
The improvement we present can be applied to other quantum cryptographic protocol with noise.
将散粒噪声用于检测纠缠态对量子计算具有重要的意义，自旋相干输运的检测是自旋电子学的重要研究课题。
The entanglement detection based on the shot noise is important to the quantum computation, and the spin coherence transport detection is a necessary subject of spintronics.
检测量子效率(DQE)可被用来精确描述图像噪声通过成像系统的传播特性。
The detective quantum efficiency (DQE) can be used to accurately describe the image noise transfer characteristics through many imaging systems.
电子倍增CCD是超低读出噪声和高量子效率的新型器件。
Electron multiplying CCD is the novel imager that has ultra-low readout noise and high quantum efficiency.
运用量子熵理论，引入量子无噪声编码方法，并研究了量子信道中的信息容量问题。
The quantum noiseless coding method is discussed with the quantum entropy theory, and the capacity of quantum channel.
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。
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.
量子信道中不可避免存在的噪声将扭曲被传输的信息，对通信造成危害。
Noise that unavoidably exists in the quantum channel will distort transmitted information and destroy the communication.
本课题目的是在理论上研究基于有噪声和损耗信道的量子网络通信。
The aim of this project is to investigate quantum direct communication network models based on a channel with noise and loss.
上述结果表明几何相位不仅对由系统参数变化所引起的经典噪声具有抗干扰性，同样对量子白噪声也具有抗干扰性。
The result shows that the geometric phase in this cavity QED system is fault-tolerant not only against the classical noise induced by the parameter fluctuation but also against the quantum noise.
在量子系统中，信道噪声主要源于消相干效应和量子门的不精确性。
In quantum system, noise primary results from decoherence and imperfect quantum gates.
本文研究光纤作为量子信道在密波分复用时模式间非线性干扰造成的信道噪声的性质，和光纤量子信道在该噪声下的经典容量。
In this paper we investigate the noise properties and classical capacity of an optical fiber which is considered as a quantum channel.
详细介绍了噪声对超导量子比特测量系统的影响。
The influence of noise to the measuring system of superconductor qubit is introduced in detail here.
对多量子阱被动锁模半导体激光器的噪声理论进行了系统的分析，并给出了半导体激光器腔内相位随载流子浓度变化的关系。
In this paper, the noise theory of monolithic multi-quantum-well passively mode-locked laser diodes (MLLDs) is discussed, and the phase variation curve with carrier population of MLLDs is found.
利用量子光学的方法可以将光场的某一个分量的噪声降低至散粒噪声极限以下，即实验获得压缩态光场。
One of the quadratured-component of squeezed states is lower than the quantum noise of coherent state and exceeds the SNL.
将量子避错码思想用于量子密钥分发，能有效克服信道中的噪声，且无需复杂的系统。
The quantum key distribution (QKD) using the QEAC will be robust in the quantum noisy channel without complex system.
为了要抑制噪声效应，它包括量子化噪声，积分仪和模拟-数字转换器要求宽动态范围，高增益和良好的分辨率。
Wide dynamic range, high gain and fine resolution are required of integrators and Analog to Digital Converters in order to limit the effects of noise, including quantization noise.
与最近的基于四光子避错码的克服量子信道噪声的量子密钥分发方案相比，该方案的量子比特效率提高了16.67%，密钥分发安全性是它的3.5倍。
Compared with the recent QKD scheme based on four-photon QEAC, the qubit efficiency of the authors' scheme increases by 16.67%, and the security is 3.5 times of it.
第2部分解释adc和DAC如何通过量子化误差、偏移误差和其它DC误差产生噪声。
Part 2 explains how ADCs and DACs introduce noise through quantization errors, offset errors, and other "DC" errors.
第2部分解释adc和DAC如何通过量子化误差、偏移误差和其它DC误差产生噪声。
Part 2 explains how ADCs and DACs introduce noise through quantization errors, offset errors, and other "DC" errors.
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