高频补偿,high frequency compensation
1)high frequency compensation高频补偿
1.To cope with the problem of low resolution in seismic prospecting caused by high frequency absorption of strata, three kinds of filters and theirhigh frequency compensation principle and effects have been discussed in this paper.针对地层的高频吸收衰减导致地震勘探分辨率不高 ,分析了 3种滤波器的高频补偿原理及效果 。
英文短句/例句
1.A novel MOCCII with high frequency compensation具有高频补偿的CMOS MOCCII
2.A novel method of CMOS MOCCII"s HF compensation一种新的CMOS MOCCII的高频补偿方法
3.Architecture and VLSI Implementation of Inter Compensator for AVS HDTV ApplicationAVS高清视频帧间补偿结构与电路实现
4.Dynamic Frequency Compesation Technique for High Speed Switched capacitor Amplifiers;高速开关电容放大器的动态频率补偿技术
5.A New Motion Compensation Method for High-Speed Maneuvering Targets in Stepped-Frequency Radar频率步进雷达高速机动目标运动补偿新方法
6.A Design of Compensation Circuit for High-frequency Induction Heating Power Converter高频感应加热电源斩波器补偿电路的设计
7.Improvement on Raging Performance of Multiple Frequency CW Radar Based on Acceleration Compensation基于加速度补偿提高多频连续波雷达测距性能
8.Quadric velocity compensation method for high resolution stepping frequency pulse radar高分辨率步进频脉冲雷达二次速度补偿方法
9.Study on Advancing the Performance of Velocity Compensation for Stepped Frequency Radar提高步进频雷达速度补偿性能的方法研究
10.Improved channel compensation method for maneuvering target detection in OTH radar改进的通道补偿法检测高频雷达机动目标
11.shunt-compensated video amplifier并联补偿视频放大器
12.Frequency Compensation in All Channel CATV Systems.全频道共用天线电视系统的频率补偿
13.Frequency Response to Super-weight Low-pitcked Circuit in Frequency Supplement;频率补偿式超重低音电路的频率响应
14.Being improved by the flutter compensation and filtering techniques, the S/N radio of the system is about 50 db.采用抖动补偿和频率滤波的办法,使系统的信噪比提高到50分贝。
15.A Bandgap Voltage Reference with Temperature Curvature Compensation and High Crossover Frequency;具有温度系数补偿与高环路交越频率的带隙基准电路
16.Application of Time-Frequency Method in Motion Compensation and Imaging for High-Resolution ISAR;时频方法在高分辨率ISAR运动补偿和成像中的应用
17.altitude compensating carburetor高海拔补偿式化油器
18.Paper′s Indirect Strain Control Based on Slip Compensation of Inverter变频器滑差补偿对纸页间接张力控制
相关短句/例句
high-frequency compensation高频补偿
1.Technique of attenuation of near-surface seismic wave andhigh-frequency compensation in western large desert area;西部大沙漠区近地表地震波衰减及高频补偿技术研究
3)linear high-frequency compensation线性高频补偿
1.Alinear high-frequency compensation circuit for seismic data acquisition system;地震数据采集系统的线性高频补偿电路
4)High frequency component compensation高频成分补偿
5)peaking control高频补偿控制
6)peaking network高频补偿网络
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.
