Amplitude based methods or phase based methods are usually used in multi-beam bathymetry system and chosen according to some rule, which may bring about unpredictable errors if wrong choose occurs.
多波束测深系统中经常使用幅度法或相位法来进行海底检测，并且按某种准则来选择，但如果选择错误，可能会带来不可预测的误差。
Based on sea clutter reflectivity mechanism, this paper analyses the amplitude distribution characteristic, correlation characteristic and spectrum characteristic of sea clutter in depth.
基于海杂波散射机理，深入分析了高分辨雷达的海杂波幅度分布特性、相关特性和谱特性。
Based on previous data, this paper sums up the reflection texture and the variety of amplitude of the river sandstone body in a dip seismic section.
在参考前人资料的基础上，总结了在横切河道的地震剖面上河道砂岩体的反射形态、结构及振幅变化。
Based on the water tube tiltmeter observatory data, the author analyses the ground tilt tide, finds that the abnormal change of amplitude factors of EW and NS componts is corresponding to earthquakes.
对云龙台的水管倾斜仪观测数据进行了倾斜固体潮的潮汐分析，发现EW和NS两个分量的振幅因子异常变化与地震有较好的对应关系。
Based on the homogeneous model, the numerical computation for the oscillation period and amplitude of pressure drop type instability was conducted.
根据两相流的均相模型，对压力降型脉动的周期和振幅进行了数值计算。
Based on the mechanism of input and damping, it is suggested that the vibration amplitude and threshold be taken as a criterion for evaluation vibration strength and anti-vibration ability.
在讨论输入和阻尼机理的基础上，提出了用振幅大小和起振门槛值作为衡量摆振大小和抗御摆振能力的衡量指标。
Based on the temporal covariance of logarithmic amplitude, analytical expression was obtained for aperture receiving power spectrum of atmospheric scintillation of satellite-to-ground downlink.
基于孔径接收的对数振幅时间相关函数，结合星地激光下行链路的实际情况，推导了适用于星地下行孔径接收的闪烁频谱表达式。
Based on this, the article improves classical ART2 network by taking amplitude as character component.
文章针对此不足，将样本的幅度作为样本特征分量的办法，对传统的ART2网络进行了改进。
Based on equivalent four-terminal networks of the longitudinal ultrasonic transformer, the resonant frequency equation and the amplitude magnification coefficient, with reactive load, are studied.
在负载为纯力抗的状况下，利用纵振型变幅杆等效四端网络，对频率方程和放大系数进行了研究。
Based on radar clutter distribution, the radar clutter model is analysed for amplitude probability density distribution and power spectrum density distribution.
从雷达杂波的分布特性出发，分析了杂波的解析模型，阐述了雷达杂波幅度的概率密度分布及其功率谱密度分布。
Based on mechanic equivalent circuit of the longitudinal ultrasonic horn, the resonance frequency and the amplitude magnification coefficient of three kinds of loaded horns are studied.
在纵振型变幅杆等效电路的基础上，研究了三类负载超声变幅杆的共振频率与放大系数。
The effect of amplitude and phase error on the performance of receiver is discussed in this paper, and a method of digital correction based on FIR filter is proposed.
本文仔细分析了幅相误差对接收机性能的影响，提出了基于FIR滤波的一种数字域校正的方法。
This paper presented a novel motion-blur-based method for measuring the amplitude of high-frequency vibration.
介绍了一种新的根据图像的运动模糊信息测量高频振动振幅的方法。
The fatigue life is seen to depend on the grain size and stress amplitude, based on the nonequilibrium statistical theory of fatigue fracture and the model of interface energy.
在其它参数保持不变的情况下，得出细晶粒多晶体金属的平均疲劳寿命随晶粒尺寸和应力振幅的增加而减小的结论。
In addition, a cold test model is designed based on a set of designed clustered cavities, the amplitude frequency response of each cavity is measured with network analyzer.
此外，对一套加工成形的簇腔模型进行了冷测模型设计，并使用网络分析仪测量了各个腔体的幅频响应。
To detect the forged parts in a single image with copy-move attack, an autocorrelation detection method based on phase and amplitude spectrum of FFT is proposed.
针对一类单幅图像的复制遮盖篡改，提出一种基于快速傅立叶变换相位和幅度的自相关检测算法对篡改部位进行检测。
A modified transmission coefficient formula is derived based on the linear small amplitude wave theory, and calculation results are in good agreement with the test results.
并按线性小振幅波理论，导出了改进的透射系数计算式，其计算结果与试验值符合良好。
The amplitude distribution, power spectrum and parameters are discussed briefly based on the return at a high grazing angle.
随后以大擦地角的回波信号为例，简要分析了杂波模型的幅度分布、功率谱和参数的特性。
Based upon wave theory and ignoring attenuation losses, the echo amplitude is.
按照波动理论，在忽略衰减损耗的情况下，回波振幅（ ）。
Based on it, amplitude slice analysis of CAF is introduced.
在此基础上，本文提出了循环自相关函数幅值切片分析方法。
Based on Tchebycheff distribution and Taylor distribution, this paper presents a new amplitude distribution-normal distribution, the density function of which is used to design an antenna array.
本文在切比雪夫分布和泰勒分布的基础上，提出了一种新的振幅分布即正态分布，并利用正态分布密度函数来设计阵列天线。
Conditions for the existence of solutions to periodic and isolated waves of limited amplitude are directly obtained based on qualitative geometric theory for ordinary differential equations.
利用微分方程解的几何定性理论，直接得到该方程存在有限振幅的周期波与孤立波解的存在条件。
This paper also proposed a new fault locating method based on either the active component increment or the amplitude increment of zero-sequence current.
提出了零序电流有功增量和零序电流幅值增量作为判据的故障点定位方法。
Later, using amplitude-based double-random-phase transform, the enciphered gray scale figure is formed .
对该图形进行振幅型双随机相位加密变换，得到原信息的加密灰度图；
Quadrature Amplitude Modulation (QAM) is used to transfer signals by digital TV system based on DVB_C standard.
基于DVB_C标准的数字电视系统采用正交幅度调制(QAM)传送信号。
Intensity space distribution near image point of optical system is derived based on the accurate amplitude (therefore the intensity) analytic expression for Fresnel diffraction.
根据准确的菲涅耳衍射振幅和光强解析表达式推导出光学系统像点附近的光强空间分布。
Based on vector-spectrum method, the concept of vector amplitude-frequency figure and vector waterfall figure is established.
基于全矢谱理论，定义全矢幅频特性图和三维全矢瀑布图的概念。
This paper proposes a new speech enhancement scheme based on modified Minimum Mean Square Error (MMSE) estimation of speech Short Time Spectrum Amplitude (STSA).
本文提出了一种改进型语音短时谱最小均方误差(MMSE)估计的增强方法。
Based on the amplitude and phase information, PI algorithm was used to control the amplitude and phase of the inverter current.
在此基础上，通过PI算法实现并网电流幅值和相位的跟踪控制。
Based on the amplitude and phase information, PI algorithm was used to control the amplitude and phase of the inverter current.
在此基础上，通过PI算法实现并网电流幅值和相位的跟踪控制。
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