2) Frequency identification
频率识别
1.
In the process of acquisition,a fast frequency identification method was used to realize the hybrid DS/FH systems fast acquisition.
同步包括捕获和跟踪两个阶段,在捕获阶段,利用快速频率识别方法对接收信号频率进行估计,实现混合系统的快速捕获;在跟踪阶段,根据获得的接收信号频率信息,等待在某一个特定的频率,通过直扩信号的捕获、跟踪、解调过程,获取接收信号的跳频同步信息,从而实现混合系统的快速同步。
4) fixed-frequency IFF
固定频率敌我识别器
5) nature frequency
固有频率
1.
The mode and nature frequency of pinned-pinned pipes conveying fluid with elastic foundations;
弹性地基两端铰支输流管的模态和固有频率
2.
Experimental research on nature frequency of prestressed concrete beams;
预应力梁固有频率的试验研究
3.
The nature frequency,vibration pattern,and dynamic performance torsion moment of a rolling mill's main drive system are computed with the master and dependent DOF model built by using the master and dependent DOF method to link a speed-down machine's high speed part to low speed part as well as a gear's driver wheel to driven wheel.
使用主从自由度法实现轧机主传动系统中减速机高速端和低速端、齿轮机座主动轮和从动轮之间的连接,建立主从自由度模型计算某轧机主传动系统的固有频率、振型及其在咬钢冲击载荷作用下的响应扭矩,并与分支式模型所得结果进行比较。
6) natural frequency
固有频率
1.
Research on natural frequency and vibration model of coke drum structure;
焦炭塔结构的固有频率和振型研究
2.
Improved Calculation Method of the Natural Frequency of Spherical Tanks in Anti-Earthquake Design;
抗震设计中球罐固有频率的改进计算方法
3.
Influence of drilling fluid on natural frequency of drill string lateral vibration;
钻井液对钻柱横向振动固有频率的影响
补充资料：固有频率
又称“本征频率”。振动系统作固有振动时的频率。
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