vector n. 1.【数学】向量,矢量,动径。 2.【航空】飞机航线;航向指示。 3.【天文学】幅,矢径。 4.【生物学】带菌者[体],传病媒介。 vt. 【航空】(对飞行中的飞机)指示航向。 vi. 【航空】电(磁)波导航。
frequency n. 1.屡次,频仍,频繁。 2.(脉搏等的)次数,出现率;频度;【物理学】频率,周率。 audio frequency音频。 a high [low] frequency高[低]频。 the frequency of earthquakes in Japan 地震在日本的频繁发生。 mean [median] frequency中频。 resonance [resonant] frequency谐振频率,共振频率。 ultrahigh frequency超高频。 ultralow frequency超低频。 very high frequency甚高频。 very low frequency甚低频。
1 . adopting frequency vector conersion motors control the main motor , unwinding and rewinding , and tension of them . seven motors controlled 1主机收料放料及收放料牵引均采用矢量变频电机控制全自动七电机张力控制。
In this thesis , a slid frequency vector control system and a speed sensorless vector control system based on reactive power are investigated and analyzed 通过深入分析空间矢量的调制与过调制,本文提出了一种基于dsp的矢量控制实施方案。
Next , the data are pre - processed to set up the neural network ( nn ) modal . then , the frequency vectors are put into the nn as the input data , however , the damage position and the damage degree are treated as the desired output 接着,以频率向量作为神经网络的输入值,与之相应的损伤位置和损伤程度作为神经网络的期望输出值,对神经网络进行基于遗传优化的学习,直至收敛。