Effect of incoherent beam on photorefractive two-wave mixing in Ce∶KNSBN crystal;
非相干光对Ce∶KNSBN晶体两波耦合的影响研究
From BaTiO_3:Ce self-pumped phase conjugator, it is theoretically analysised and experimentally demonstrated that non-negative effect of incoherent beam on the four waive mixing region in photorefractive phase conjugator.
本文以ＢａＴｉＯ３：Ｃｅ自泵浦相位共轭镜为例，理论上和实验上对非相干光作用在光折变相位共轭镜的四波混频区产生的非负效应进行探讨和验证。
This result is experimentally achieved by using incoherent beam illumination along the c axis direction of the crystal when a He Ne laser generates steady phase conjugate signal.
对ＣｅＢａＴｉＯ３晶体的自泵浦相位共轭镜在非相干光作用下自泵浦相位共轭反射率增强的特性进行了研究。
This paper introduces a multipurpose digital demodulation method based on SDR,which is one kind of non-coherent demodulation types.
介绍了一种基于软件无线电技术的通用数字解调方法,该方法属于非相干解调方式的一种,它是对FSK过零检测解调法的一种改进,使之能够对多种数字调制信号进行解调。
The basic principle of non-coherent PN ranging in spread spectrum TT&C systems is introduced.
介绍了扩频测控系统中非相干伪码测距的原理,针对航天测量船在海上校飞过程中出现的非相干伪码测距跳值问题进行了分析与研究,并从测量船测控设备软件和参数设置等方面提出了解决措施。
Measurement of quantum states with incoherent light;
量子态的非相干光时域测量
Detecting the Population relaxation of Organic dye LC700 with the time—delayed degenerate four—wave mixing with incoherent light;
用非相干光时延简并四波混频方法探测有机染料LC700的布居数驰豫
The research for the three-photon correlated imaging with incoherent light(classical thermal light) of lensless Fourier-transform is reported.
首次从理论上提出了利用非相干光场(经典热光场)在无透镜的情况下,得出高阶干涉光的三阶关联函数解析式,并证明了非相干光场通过傅里叶变换,完全能够实现多光子的关联成像。
Theory and practice also prove this dissimilarity is a universal law in field of thermal deformation.
机械零件在工作温度和环境温度偏离标准设计温度后,其形状会发生改变,但由于温度场分布的不均匀性、构件材料的原子间距、内部缺陷形态等因素的影响,使得构件的热膨胀不能自由发生,导致构件热变形前后在形状上具有非相似性,理论和实验都证明这种非相似性是普遍存在的。
Comparison between optical codes in incoherent OCDMA system;
非相干OCDMA系统地址码的比较
Its technical principle is simple, but it may bring some problems to UAV telemetry and telecontrol system,By the mathematical formula derivation, the mathematical formula of incoherent ranging principle is given, and the mathematical formula of the specific implementation of incoherent ranging is further derived.
通过数学公式推导,给出了非相干测距原理的数学公式,并进一步推导了非相干测距的具体实现的数学公式,给出了非相干测距的性能指标。
A microwave chemical reactor, with four independent magnetrons to achieve incoherent combination of microwave power, is modeled to simulate the heating process of water, by infinite element method, to study the difference in heating water by fixed phase or random phase microwave power generators.
以4个相互独立的小功率磁控管实现微波功率非相干合成的微波化学反应器为模型,用有限元方法进行了数值仿真,模拟了对水的微波加热过程。
A non-associated plastic constitutive model for concrete;
混凝土的一种非相关流塑性本构模型