Finding out the major concentrated frequency band of tool-wear information can enhance SNR(Signal Noise Ratio) and improve tool-wear degree recognition result.
找出刀具磨损信息在可听阈内的主要集中频段能提高切削声信号的信噪比,改善识别结果。
In order to improve the accuracy of freqency measurement, the signal being measured can be divided into three frequency bands: the low freqeuecy band ,the middle freqency band, and the high freqency band The different measuring methods are taken in different frequecy bands to get better resul
为了提高信号频率测量的范围和信号频率测量的精度 ,把被测量信号分成低频、中频、高频等 3个频段 ,不同频段采用不同的测量方法 ,以取得更好的测量效果。
The anomalous signals at surface were distributed in wide frequency bands and scopes,and occurred a month or several days before earthquakes.
卫星地震电磁信号集中于ELE-VLF频段,时间上以震前几个小时为主,说明电磁信号具有明显的短临特性。
This article studies the effect on introducing Band A in TD-SCDMA system,and discusses network equipments and terminals.
本文对TD-SCDMA系统引入A频段带来的影响进行研究,从网络设备和终端等方面展开讨论和分析,并提出了相应的引入策略建议,最后给出了在TD-SCDMA系统现网引入A频段策略研究的结论。
This article studies the interferences between Band A of TD-SCDMA system and various of other systems,and discusses network equipments,terminals.
本文对TD-SCDMA系统A频段与其他通信系统间的干扰进行研究,从频谱资源分配和干扰分析方法等方面展开讨论,并进一步对系统间干扰进行定量计算,最后给出了系统间干扰分析的结论。
Design and Analysis of Frequency Synthesizer for Multiband Radio;
多频段电台频率合成器的设计与分析
Research of RFID Frequency Regulation in 860MHz-960MHz Band;
860MHz-960MHz频段RFID系统的频率规划研究
The CAD Design of UHF Microchip Junction Circulator;
射频UHF频段微带线结环行器CAD设计
Research on Key Technology of UHF RFID;
射频识别UHF频段关键技术的研究
Study on UHF RFID Based on DSP;
基于DSP的UHF频段射频识别技术研究
Research on UHF RFID Reader if Scheme;
UHF频段RFID读写器中频方案研究
Research on Multi-Frequency and Broadband Miniature Planar Antenna
小型平面天线的多频段及宽频带研究
Design for UHF RFID automatic test system
UHF频段RFID射频自动测试系统设计
The Optimized Design for Radiation Performance of UHF Band Dual-frequency Feed
UHF频段双频馈源辐射性能的优化设计
Application of 5.8 GHz Wireless Communication Technology for Metro Train-wayside Video System
5.8GHz无线频段车-地视频传输应用研究
Analysis and realization of wide-band frequency synthesizer in hopping communications
跳频通信宽频段频率合成器的分析与实现
Each channel remains at an assigned frequency within a single band.
每个信道在单一的频段内保持分配的频率。
THE INVERSION OF RAYLEIGH WAVE DISPERSION CURVE WHICH LOST FREQUENCY RANGE
对缺失频段的瑞雷波频散曲线反演的误差分析
Research on Broadband and Multi-band Miniature Planar Inverted F Antenna;
宽频带及多频段小型化平面倒F天线研究
Research and Design of CMOS Multi-band RF Power Amplifier;
射频CMOS多频段功率放大器的研究与设计
Research on the Miniaturized Broadband and Multi-band Planar Inverted-F Antenna;
小型化宽频带和多频段平面倒F天线研究
Study on 5GHz RF Receiver Front-End Based on Silicon Germanium Technology;
基于SiGe技术的5GHz频段射频接收机前端研究
Research and Design of Radio Frequency Section in UHF Passive Tag Chip;
UHF频段无源标签芯片射频部分的研究与开发
