互易原理

一种基于互易原理的超声功率新测量方法

A new measurement method of ultrasonic power based on reciprocity principle

在时分双工（TDD）系统中，通信双方基于信道互易原理，提取具有一致性的上下行信道特征，通过实时独立地生成密钥，从而避免密钥的传输，达到通信安全的目的。

In TDD system , communication terminals extract the identical channel characteristics based on channel reciprocity theory between uplink and downlink , and generate secret key independently in real time , this scheme can avoid transmission of and achieve the aim of secure communication .

应用算子分解定理引入耗散势函数，再依据广义Onsager互易原理，我们将广义熵不等式化为某一泛函的可积微分不等式，从而得到它的完全解。

The dissipative potential function is introduced by the use of operator theorem of decomposition , and with the condition of generalized Onsager reciprocal principle , the generalized entropy inequality is transformed into an integrable differential inequality of a certain functional so as to obtain its complete solution .

用矢量球面波理论和互易原理分析伦伯透镜天线

Analysis of Luneburg Lens Antenna Using Spherical Vector Wave Method and Reciprocity Theorem

互易原理在力矩导纳测量中的作用

The role of reciprocity in measuring moment mobility

在互易原理的基础上，得到了计入相邻目标二次散射的散射场的积分表达式。

The integral expressions for scattered fields including the second-order scattering terms are given based on the reciprocity theorem .

本文运用互易原理导出了圆口径分布的天线近区辐射方向图与测量距离的关系。

- In this paper , the dependence of circular aperture antenna near-zone radiation patterns on measurement distance is derived using the reciprocity theorem .

但当发射器和接收器位于不同深度时，这样获得的结果可能不符合互易原理。

But in cases when transmitter and receiver are located at different depths , the results of such calculation may contradict with principle of reciprocity .

介绍了口径耦合微带贴片天线的几种分析方法，包括空腔模型法、传输线模型法、互易原理法以及几种常用的全波分析方法。

Several methods are presented for the analysis of aperture coupled micro-strip patch antenna , such as transmission-line method , cavity method , reciprocity method and some used full-wave analysis method . We generalized all kinds of dual-polarized microstrip antenna elements , and compared them each other .

应用矢量位函数、反应的概念和互易原理，推导出圆波导中双探针的互阻抗表达式，圆波导是半无限长的，终端接有一定反射系数的负载。

The expression of mutual impedance between two probes in a circular waveguide is derived by means of a vector potential function , reaction concept and reciprocity theorem . The waveguide is semi-infinite , and one end of the waveguide is terminated to a load with a reflection coefficient .

根据互易性原理和能量守恒定律，给出了结构弹性波传递矩阵的一般表达式。

According to reciprocity and conservation of energy , a general formulation of wave transfer matrix is presented .

依据无线传输互易性原理，节点间通信时交换的控制报文和数据报文也提供了彼此间的连接信息。

According to reciprocity theorem , when two nodes communicate , the controlling packets and the data packets they exchange provide the connectivity information .

即若原始方程满足互易性原理，缩减后的方程也满足该特性；

Its property is studied and it is shown that if the original equation satisfies the reciprocal principle , the same does the reduced one .

在波动方程的时反不变性和空间互易性原理的基础上得出了时反的聚焦特性。

The properties including time reversal invariant of wave equation and spatial reciprocity ensure that the wave can focus in spatial and temporal with time reversal .

基于互易性原理对二维海面与三维电大目标之间耦合场进行分析，得到相关结论。

The coupling scattering between the two-dimensional sea surface and the three-dimensional electrically large target is analyzed based on the reciprocity theorem , and some conclusions are obtained .

应用互易性原理使求解复合目标的二次散射场简化为求解包含平板上的极化电流和微粗糙面散射场的积分方程。

By employing the reciprocity theorem , the secondary scattered fields from the composite target can be simplified as the evaluation of integral equation involving polarization currents of the conducting plate and scattered fields from the slightly rough surface .

同时利用物理光学近似结合互易性原理计算了动态介质粗糙海面与其上方导体运动平板的复合散射，并对复合散射场时间序列进行了混沌研究。

Taking advantage of Physics Optical ( PO ) and reciprocity theorem , the composite scattering between the time-varying dielectric sea surface and a moving conducting plate is calculated , and the chaotic characteristic for the time series of composite scattering field is investigated .

本文介绍一种利用非互易变极化原理制成的新型变极化环行器。

A new kind of variating-polarization circulator on the principle of nonreciprocal variating polarization is introduced in this paper .