1) partially coherent detection
部分相干检测
2) Partial coherence interferometry
部分相干测量
3) correlation detection
相干检测
1.
According to the principle of correlation detection,an automatic measurement system for extinction ratio of polarizer consisted of monochromator and DSP Lock-in amplifier and compurer is designed not only to eliminate the influence on measurement accuracy caused by drift of intensity of light source but also to obatain approximate extinction spectrum.
基于相干检测原理设计了一套由单色仪、数字锁相放大器和计算机联合使用的透射式偏光镜消光比智能化测试实验系统,采用双频双光路分光单探测器接收锁相放大器分离信号比对法进行源补偿测量,克服了光源光强漂移所带来的影响;实现了可见光区消光比的精确自动测量,而且可以测得近似的消光光谱。
4) coherent detection
相干检测
1.
Effect of modulation frequency Jitter on coherent detection and its elimination algorithm;
调制频率抖动对相干检测的影响及消除算法(英文)
2.
Differential detection and coherent detection based on space-time block codes;
基于空时分组码的差分检测与相干检测
3.
The OSCM system based on coherent detection in atmospheric optical communication is designed and the signal transmission performance of this system is simulated and analyzed in this paper.
设计了应用于大气光通信的OSCM(光微波副载波复用)相干检测系统,对系统的信号传输性能进行了仿真分析,在理论上验证了该方案误码率低,可同时传输多路信号,适用于大气信道。
5) partial coherence
部分相干
1.
This paper deals with the theory and application of the partial coherence of light.
讨论了光的部分相干理论及应用,并指出:严格地说,光都是部分相干的,完全相干和完全不相干是部分相干在一定条件下的极限情况。
6) partially coherent
部分相干
1.
The generation of partially coherent laser beam directly from a spatial-temporal phase modulated opticaal resonator is achieved experimentally.
从实验上得到了由谐振腔直接产生的部分相干光。
2.
In this paper,we study the generation partially coherent vortex beams by passing of Gaussian Schell-model beam through a spiral phase plate(SPP) with arbitrary integer singularity of order n.
研究了部分相干高斯-谢尔模型光束经过整数阶螺旋形位相板之后形成的部分相干涡旋光束,着重研究这种部分相干涡旋光束的传输特性。
3.
Based on the unified theory of coherence and polarization of random electromagnetic beams and the propagation law of partially coherent light,the change in the degree of polarization of beams which is generated from a partially coherent source after passing through a series of circular apertures was investigated.
基于随机电磁光束的相干偏振统一理论和部分相干光的传输定律,研究了部分相干光源所发出的光经过多个圆孔衍射后的偏振度变化情况。
补充资料：相干散射和非相干散射
再辐射的光量子频率和被吸收的光量子频率准确相等的散射过程称为相干散射。在相干散射的情况下，源函数准确地等于平均辐射强度。再辐射的光量子频率和被吸收的光量子频率不相等的散射过程称为非相干散射。在天体物理中，存在一系列因素使散射过程成为非相干散射。主要的因素是：原子的能级有一定的宽度、原子的热运动和湍动以及压力效应等。对于非相干散射，源函数是相当复杂的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条