1)high frequency interference高频干扰
1.Elimination of high frequency interference during the laser-arc hybrid welding;激光-电弧复合焊接过程中高频干扰的消除
2.Anaysis of high frequency interference in arc welding inverter and control measures;逆变焊机的高频干扰分析及抑制方法探讨
3.This paper enters into some technical problems about anti disturbance wire arrangement in computer controlled AC automatic TIG welding system in high frequency interference environment.研讨了高频干扰下计算机控制交流TIG焊布线系统抗干扰问题 ,包括干扰类型分析及防止措施、高频干扰产生原因和计算机接口电路隔离措施[1~ 3] 。
英文短句/例句
1.If the input signal is super imposed with high-frequency noise, use a low-passed filter.若输入信号伴随高频干扰,应在线里用高频过滤器。
2.The EMC Analyzing and Optimizing with High-frequency Interference in PCB Design;高频干扰对PCB电磁兼容性影响的分析与PCB优化
3.Study of suppressing RF interference by range processing in the coast-ship HF surface wave SIAR高频地波SIAR射频干扰距离域抑制方法
4.sideband splatter邻近频道干扰, 边带干扰
5.image interference图像干扰;镜像干扰;镜像干扰;影频干扰;虚源干涉
6.EMI and EMC of Solid State RF Module固态高频组件的电磁干扰与电磁兼容
7.Analysis of Restraining EMI in Communication High Frequence Switching Power Supply通信高频开关电源电磁干扰抑制分析
8.Jamming Effect of the High-repetition-frequency Laser to the Laser Seeker高重频激光对激光导引头的干扰效果
9.Research on Anti-interference Strategy of UHF RFID System超高频射频识别(UHF RFID)系统抗干扰策略的研究
10.Anti-jamming performance of high pulse repetition frequency tracking radar with random frequency hopping高重频随机跳频跟踪雷达及其抗干扰性能
11.image reject mixer象频干扰抑制混频器
12.Study of the Electro-Magnetic Interference in High-Frequency Switching-Mode Power Supply;高频开关电源电磁干扰分析与抑制研究
13.Restrain Methodology for Higy-order Harmonics in the Frequency Converter;变频器高次谐波干扰的危害和抑制方法
14.Study on Interferences Elimination and Fault Diagnostic Techniques for UHF Partial Discharge Detection局部放电特高频检测抗干扰与诊断技术的研究
15.Strong Anti-Interference Capability of Variable Frequency Speed Regulation Constant Pressure Water Supply System具有高抗干扰能力的变频调速恒压供水系统
16.Anti-jamming Performance Analysis of High Speed Frequency-hopping Communication System Based on Simulink基于Simulink的高速跳频通信系统抗干扰性能分析
17.New scheme and circuit implementation of countering multiplesource high-repetition frequency laser jamming抗多源激光高重频干扰新方案及电路实现
18.Improving the power-line-interference rejecting ability of FIR low-pass digital filterFIR数字低通滤波器工频干扰抑制能力的提高
相关短句/例句
high-frequency interference高频干扰
1.The paper investigates the factors affecting high-frequency interference,of which include the high-frequency interference,the length of welding cable and power line,the output resistance of signal source,the type,length and orientation of signal line,the shielding and grounding of high-frequency oscillator,power line and signal line.本文以试验为主,研究了影响高频干扰的多种因素,如高频强度,焊接电缆和焊机输入线长度,信号源输出电阻,信号线的种类,长度和空间位置,高频振荡器、焊机输入线和信号线的屏蔽接地等。
2.In view of the poor high-frequency interference rejection of the original second-order lead correction control strategy,an improved strategy is proposed,which reduces amplitude gain at high frequency without changing phase-frequency characteristic and smooth the phase-frequency characteristic in a broader rage.针对原二阶超前校正环节控制策略抵抗高频干扰能力差的问题,提出了一种改进型的二阶超前校正环节的新型控制策略,在不改变相频特性的前提下,降低高频时的幅值增益,使幅频特性在较宽的范围内比较平滑。
3)high frequency disturbing signal高频干扰
1.From the viewpoint of vibration mode,the fact is explained that high frequency disturbing signals at different points are weakened and changed when the load impulse changes.通过数值计算与实验速度曲线的对比分析研究 ,提出了计算不同点激励速度峰值时间差的关系式 ,并从振型的角度解释了管桩顶面不同测点处高频干扰随加载脉冲变宽时的衰减现象。
4)laser-barrage-jamming高重频干扰
1.In order to study the efficiency of the laser-barrage-jamming to laser-guided weapon,the laser-guided weapon trajectory simulation system of laser-barrage-jamming was developed.为研究激光高重频干扰对激光制导武器的干扰效果,研制了高重频干扰下的激光制导武器弹道仿真系统。
5)anti-high-frequency interference抗高频干扰
6)disturbance of high frequency machine高频机干扰
延伸阅读
甚高频和超高频多普勒雷达 工作在30~3000兆赫频段的气象多普勒雷达。一般具有很高的探测灵敏度。因探测高度范围可达1~100公里,所以又称为中层-平流层-对流层雷达 (MST radar)。它主要用于探测晴空大气的风、大气湍流和大气稳定度(见大气静力稳定度)等大气动力学参数的铅直分布。 原理 这类雷达通过以下几类电磁波和大气的相互作用,对晴空大气进行探测:①由大气湍流运动引起的折射率不均匀结构对电磁波的散射;②稳定大气分层结构对入射电磁波的部分反射;③有时出现于中层大气的自由电子对电磁波的散射;④中层大气中的流星余迹散射。散射体积内空气的运动,使雷达回波具有多普勒频偏。 结构 MST 雷达的结构和气象多普勒雷达大致相同。其特点在于:它们一般配备了大型天线(天线阵),有些甚高频段雷达的天线阵,尺度达 30~200米,采用半波振子阵或八木天线振子阵,以相控方式实现波束扫描。超高频段雷达采用直径几十米的可动抛物面天线,这类雷达的发射功率在几百千瓦至 2兆瓦之间,发射功率和天线面积的乘积值在106~1010瓦·米2之间。此外,为获得高灵敏度和高空间分辨率,在脉冲发射体制和回波数据处理方面,也采取一些技术措施。 用途 利用回波的多普勒频谱可以进行下述各项测量:①探测大气风场的铅直分布。同一仰角,空间分辨率约为 150~1000米,采用脉冲压缩技术后,分辨率已可达到15米。②探测大气湍流结构。可以给出平均折射率湍流结构常数(C厒)的铅直分布。再引入一些大气湍流模式后,可以推算出湍流耗散率的铅直分布。③探测对流层顶高度及逆温层的高度和厚度。目前,甚高频和超高频多普勒雷达还只能测定上述气象要素的铅直廓线及其时间变化,而不能给出三维空间分布资料。 参考书目 K.S.Gage,B.B.Balsley,Doppler Radar Probing of the Clear Atmosphere,Bulletin of American MeteorologicalSociety,Vol.59,No.9,pp.1074~1093,1978.