time base frequency的例句大全

It describes the time-base analysis, wave form analysis, trace analysis and frequency spectrum analysis which are always used to evaluate the vibration signals measured on machines.

RSA密码算法的功耗轨迹分析及其防御措施论述了几种常用的振动信号分析法，如时域分析、轴心轨迹、波形分析、轨迹分析、频谱分析等。

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The technical characteristics of the device is: the frequency conversion invert circuit consists of the connection of a time base integrated circuit and a triode;

其技术特征是：变频逆变电路由时基集成电路和三极管连接而成；

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Chapter 3 discusses the time base and frequency base, as well as the measure methods of time and frequency.

第三章和第四章对双基地雷达系统中关键技术之一的时间、频率同步的相关技术问题进行了分析和研究。

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A subspace-based blind channel estimator has been developed for space time coding orthogonal frequency division multiplexing ( STC-OFDM) system with two transmit antennas and two receive antennas.

针对使用2个发射天线和2个接收天线并且采用循环前缀的空时编码正交频分复用系统（STC-OFDM），提出了一种信道盲估计算法，并给出信道可被辨识的条件。

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Low level image processing is the base of navigation. The paper discusses time domain filtering and frequency domain filtering according to the noise disturbance in the surroundings images.

低层视觉图像处理是视觉导航的基础，针对环境图像存在噪声干扰的特点，文章分别从时域和频域上分析了图像滤波的方法。

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Time Frequency Analysis-Based Stepped frequency ISAR Imaging

基于时频分析的频率步进ISAR成像

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Aiming at compensating the absorption and attenuation of seismic signal, the paper anew establishes the relationship about absorption coefficient and Q-value, and brings forward a time window method that is base on reverse Q-value to compensate strata absorption and attenuation in frequency domain.

针对地震信号的吸收衰减补偿问题，在重新建立吸收系数和Q值关系的基础上，提出了一种基于反Q补偿的分时窗频域吸收衰减补偿方法。

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At the same time, dynamical analysis for a given bridge has been done through the software MIDAS, and the relation of between basic frequency and sag ratio of stress-ribbon footbridges and frequency wave on the base of given sag have been educed.

同时，通过计算软件MIDAS对拟定桥梁进行动力分析，得出人行悬带桥的基频与垂跨比的关系以及特定垂度下的频率波形。

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The module, which is on the base of a hardware platform based on FPGA and DSP, can preprocess the measure results of frequency, sample the IF signal, and send data to host computer in real time.

模块以FPGA+DSP的硬件平台为基础，对测频结果进行预处理，对中频信号进行采样，将数据实时上传主机进行分选识别。

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A new tool that can test the clock base frequency error of energy measuring devices and provide GPS standard time to calibrate real-time clock was introduced in this paper.

介绍了一种用来测量电能计量装置的时钟基频误差，并提供GPS标准时间以校准其实时时钟的新型工具。

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In this paper, a firm joint between steel base and diamond grain was realized by using a high frequency induction welding technique. Ni Cr was used as the brazing alloy and the brazing current and time were carefully controlled.

利用高频感应加热的方法，以Ni-Cr合金为钎料，通过控制电流和加热时间，实现了金刚石与钢基体的牢固连接。

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The base and emitter transit time increase and the cutoff frequency decreases at low temperature due to the trapping effect of shallow energy level impurities.

而由于浅能级杂质的陷阱效应，低温下基区和发射区渡越时间变长，截止频率下降。

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