1) asymmetric 3×3 coupler demodulation
非对称3×3耦合解调
2) asymmetric 3×3 coupler
非对称3×3耦合器
1.
The signal processing software was designed by Labview, and it could achieve software demodulation of asymmetric 3×3 coupler output signal and spectrum analysis.
实现了对非对称3×3耦合器输出信号的软件解调和频谱分析。
3) 3×3 couple demodulation
3×3耦合器解调
5) 3×3 coupler
3×3耦合器
1.
Digitized demodulation scheme of fiber optical hydrophones based on 3×3 coupler;
基于3×3耦合器光纤水听器的数字化解调方案
2.
Signal demodulation algorithm of fiber optic gyroscope based on 3×3 coupler;
基于3×3耦合器的光纤陀螺信号解调算法
3.
Outer vibration signals can be obtained from the output of the interferometer when a 3×3 coupler combined with software demodulation is used as the splitter.
用3×3耦合器作为分光器,并结合软件解调技术从干涉仪的输出信号中解调出了外部振动信号。
6) 3×3 directional coupler
3×3耦合器
1.
Based on the 2π/3 phase difference when interference beam pass through the coupler, the signal is magnified, shaped and filtered by the demodulator comprising 3×3 directional coupler and demodulation.
解调器由3×3耦合器和解调电路构成,根据干涉光在通过耦合器后,产生的2π/3固定相位差,对信号进行放大整形、滤波,由解调电路可直接获取被传感信号进行解调;判向计数模块基于CPLD技术,满足了系统高分辨率需求;单片机控制电路以AT89S52单片机为核心部件,实现了数据采集、通讯及计数模块清零等功能。
2.
In this paper ,we introduce a design of a strain measurement system based on the 3×3 directional coupler which is mainly used in the laboratory.
本文根据实验系统的需要,详细介绍了一种将基于3×3耦合器的干涉型光纤传感器应用于应变测量系统的设计过程,全文包括系统设计原理的分析,系统的软硬件设计等内容。
补充资料：对称与非对称
反映客观事物在结构、功能、时空上的特殊联系的范畴。对称指事物以一定的中介进行某种变化时出现的不变性，非对称指事物以一定的中介进行某种变化时出现的可变性。在自然界中普遍存在，形式多样。对称有空间对称(包括形象对称和结构对称)、时间对称、概念对称等。
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