回波      echo(2567) return(287) echoes(524) echo wave(40) echo signal(355) echo waves(13) acoustic echo(68) echo pip(0) echo of(120) received echo(5) radar echo wave(2) pulse echo(42) echo sequences(17) fast field echo(17) echo on(11) flaw echo(11) echoecho(0)   echo      Research on Echo Tracking Algorithm and Some Dey Techniques of Imaging Altimeter      成像高度计回波跟踪算法及若干关键技术研究 短句来源      Study on Synthetic Aperture Radar Echo Simulation      合成孔径雷达回波信号模拟研究 短句来源      Some Methods for Correction of Echo Data Measured by Model 711 Radar      711雷达测定回波数据订正的方法 短句来源      Target Identification by Using Radar Echo Polarization Information      利用雷达回波中的极化信息识别目标 短句来源      R Vector Description of Photon Echo      光子回波的R矢量描述 短句来源 更多          return      The antenna operates at 2.45 GHz with a return loss of-25 dB and a bandwidth of 120MHz,which suits the requirements of the IEEE802.15.4 protocol.      设计制作的天线经测试,在2.45GHz的中心工作频率下,回波损耗为-25dB,带宽为120MHz,满足了IEEE802.15.4协议的要求。 短句来源      The return loss of this filter is 31.53dB at the center frequency of 1.8GHz,and the minimum insertion loss in passband is 0.01dB,and the 3dB relative bandwidth is 19.44%.      该滤波器在中心频率1.8GHz处,回波损耗达到31.53 dB,通带内最小插损达到0.01 dB,3 dB相对带宽为19.44%. 短句来源      The return loss of the new filter is 31.65dB at the center frequency of 1.8GHz,the minimum insertion is 0.01dB in passband and the 3dB fractional bandwidth is 19.44%.      该滤波器在中心频率1.8GHz处,回波损耗达到31.65dB,通带内最小插损为0.01dB,3dB带宽为19.44%。 短句来源      Performance measurements of the fabricated VOA shows that the insert loss≤0.8 dB, the attenuation range≥50 dB, the return loss≤-45 dB, the wavelength dependent loss≤0.2 dB, the polarization dependence loss≤0.25 dB and the responding time<1 ms.      测试表明器件的动态衰减范围≥50dB,插入损耗≤0.8dB,回波损耗≤-45dB,波长相关损耗≤0.2dB,偏振相关损耗≤0.25dB,响应时间<1ms. 短句来源      As a result,the filter has a 3dB passband from DC to 2GHz. The return loss is better than 10dB and insertion loss is better than 0.5dB for DC to 1.7GHz. The out-of-band rejection levels are larger than 20dB from 2.9 to 4GHz.      设计结果表明,滤波器3dB通带从DC(Direct Current)到2GHz,回波损耗优于10dB,且插入损耗从DC到1.7GHz时优于0.5dB,带外抑制从2.9～4GHz优于20dB。 短句来源 更多          echoes      Joint Estimation of Doppler and Multipath Time Delay of Overlapping Echoes for LFM Pulse Radar      LFM脉冲雷达回波Doppler与多径时延的联合估计 短句来源      An analysis on radar echoes of 88.5 heavy rain over the north of Fujian      88·5闽北特大暴雨的雷达回波分析 短句来源      Trough experiments the modulation effect of propeller echoes, its influence, the relationship between its influence and other factors are analyzed.      通过试验分析了螺旋桨子回波的调制作用，并研究了螺旋桨子回波的影响大小，分析了影响大小与各种因素的关系。 短句来源      In the thesis, the video echo of the airborne PD radar was simulated. The simulated echoes include the signals of the target, the ground clutter and the noise.      本文研究的雷达视频回波信号模拟与仿真是针对机载下视脉冲多普勒雷达，包括目标信号、地杂波信号和噪声信号的模拟与仿真。 短句来源      Applications of Transputer in Real-Time High-Speed Acquisition System of Radar Echoes      Transputer在高速雷达视频回波采集系统中的应用 短句来源 更多          echo wave      Analysis to fault of 354 warning radar without echo wave      354型警戒雷达无回波故障剖析 短句来源      By software and signal analysis,visualization of medical NMR signals becomes possible. The T1,T2 resonance frequency value reflecting human tissue characteristics,and the FID,echo wave as well as other curves reflecting the intensity of signals,can contribute a lot to the teaching of the applied analysis of clinical NMR and MRI principles.      采用信号分析和软件的方法,实现医用核磁共振成像过程中的信号可视化,获得反映人体组织特性的T1、T2、共振频率值,以及反映信号强度的FID、回波等曲线,有助于进行临床核磁共振应用分析和核磁共振成像原理的教学。 短句来源      The Effects of Step Frequency and Conical-scan Antenna on the Target Echo Wave Signal      频率步进圆锥扫描体制天线对目标回波信号的影响 短句来源      The Echo Wave and Its Transmit Character in Traffic Flow      交通流中的回波及其传播特征(英文) 短句来源      INFLUENCE FACTORS OF ULTRASONIC PIEZOELECTRIC TRANSDUCER ECHO WAVE FREQUENCY AND THE WAY OF CONTROLLING      影响超声波换能器回波频率的因素及控制方法 短句来源 更多            查询“回波”译词为其他词的双语例句 echo signal echo waves acoustic echo echo pip echo of received echo radar echo wave pulse echo ......   查询“回波”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   echo Its absolute value (|A(u)|) measures the correlation between the signal u emitted by the radar transmitter and its echo after reaching a moving target. 例句来源       After the characteristics of the ionospheric echo Doppler spectra were analyzed, the signal preprocessing was developed in this paper, which aimed at improving the Doppler spectra. 例句来源       Nonexponential Diffusion Extinction of Spin Echo from Water Protons in Wheat Root 例句来源       The method of NMR spin echo with the magnetic field pulse gradient was used for studying self-diffusion of water molecules in the radial root direction. 例句来源       The NMR spin--echo technique was used to study the hydration of protein samples and to determine the spin--spin relaxation times (T2) from the protons of water adsorbed on the proteins. 例句来源       更多             return The production mechanism of non-return-to-zero (NRZ), return-to-zero (RZ) and carrier suppressed return-to-zero (CSRZ) was analyzed theoretically in this paper. 例句来源       The return loss, pattern and gain of the prototype antenna have been measured. 例句来源       (2) During decomposition, the annual return amount of N, K and Mg in fine roots of black locust was highest, followed by the mixed fine roots of the two species, and then the fine roots of poplar. 例句来源       (3) The increased return amount of N in mixed fine roots could improve the N nutrient condition of poplar trees. 例句来源       The return amount of P in poplar fine roots was greater than that of black locust, which could improve the P nutrient of black locust trees. 例句来源       更多             echoes Strong and long lasting echoes are actually received whenever the transmitting frequencies coincide with characteristic plasma frequencies. 例句来源       Provided that these echoes, also called resonances, may be identified, the WHISPER relaxation sounder becomes a reliable and powerful tool for plasma diagnosis. 例句来源       The impulse response of the resonance filter can be represented as a superposition of Gaussian echoes. 例句来源       The wavelet-packet dictionary with Daubechies wavelet functions, which well match the observed ultrasonic flaw echoes, is selected. 例句来源       In ultrasonic nondestructive testing, the precise detection of flaw echoes buried in backscattering noise caused by highly scattering materials is a problem of great importance. 例句来源       更多             echo wave After being converted into an electrical signal by the piezocrystal, the echo wave is sent to the receiving circuit. 例句来源       Ideally, the points for wave retrieval oscillator and echo wave are at the phase detector in the circuit. 例句来源       So when moving the transducer up and down, the liquid level can be found out by real-time analyzing of the echo wave. 例句来源       The echo wave brings on the vibration of the piezocrystal. 例句来源       The lowlevel winds are also shown to create a reflectivity pattern similar to a line-echo-wave-pattern. 例句来源       更多             其他 点击这里查询相关文摘     相关查询: 回波衰耗 回波模型 回波抑制 回波损耗 回波消除 缺陷回波 电缆回波 气象回波 雷达回波 回波抵消 回波干扰 回波处理  对查询结果不满意

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