On the low-frequency parameters of speaker is analyzed, draws the affecting relation of strengthening rib and equivalent compliance , effective vibration area of diaphragm.
分析了膜片加强筋的筋脉、剖面形状、面形状、角度等对扬声器低频参数的影响，得出了加强筋与膜片等效顺性以及有效振动面积之间的关系。
A frequency domain characterization method using low frequency ultrasound is put forward to estimate parameters of ultra thin elastic layers, such as: the sound velocity, thickness and density.
本文提出一种定量无损估计超薄弹性层声速、厚度和密度参数的低频超声波频域定征方法。
The phenomenon that the effect of the high frequency modulation is better than that of the low frequency modulation is explained, and general rules of choosing modulator parameters are also presented.
解释了高频调制效果比低频调制好的实验现象，并且给出了确定调制器参数的一般原则。
The frequency parameters are set in highly denseness in high energy frequency band, but in sparse denseness in low energy frequency band.
在能量高的频段密集选取频率参数，相反在能量低的频段稀疏选取频率参数。
The methods of parameters identification are analyzed and low-order equivalent system is identified by frequency domain maximum likelihood method and least square method.
分析了等效系统参数辨识方法，采用最小二乘法与频域极大似然法求解先进飞机的低阶等效系统。
But the line located in the low frequency of ship noise spectrum has high intensity and stability. This fact provides new idea in estimating target motion parameters.
而处于舰船噪声低频区的线谱具有很高的强度和稳定度，这一事实为估计目标运动要素提供了新的思路。
A loading scheme is proposed for the mobile Very-Low-Frequency antenna, and loading parameters are optimized.
提出一种加载机动甚低频天线的方式，对加载参数进行了优化。
The effects of the sea sediment parameters and center frequency of the source on the low frequency acoustic wave propagation in shallow water are investigated.
考察了海底沉积物参数、声源激发主频等对低频声传播的影响。
Nowdays the problems commonly existing in the measurement of low frequency noise of transistors are, great errors, long time and imperfection of noise parameters.
目前有关晶体管低频噪声测量仪器普遍存在的问题是测量误差大、时间长、所给噪声参数不完善。
Firstly, with the consideration of the frequency and aspect Angle dependent parameters of the low frequency UWB-SAR, the radar equation for calibration is proposed.
首先充分考虑了系统参量的频率和方位角特性，提出了适合低频uwb -SAR校准的雷达方程。
The Wigner Ville time frequency analysis in conjunction with properly selected OFDM parameters is applied to evaluate the signal dynamic range performance over the low voltage power line network.
为了研究OFDM信号在低压电力线上的传输情况，运用基于维格纳分布的时频分析方法对电力线上的信号进行分析。
And how to control phase screen parameters and improve low frequency characteristic are also described in detail.
对相位屏的方差、低频特性进行了有效控制和改善。
For some operating conditions, a synchronous generator with a rectifier and back-EMF load maybe exhibit low-frequency oscillations when the system parameters do not match.
同步发电机整流带反电动势负载时，当系统参数不匹配，在一定工况下，可能出现低频振荡。
For the design of low frequency circuit, the mutual link relations can be regard as lumped parameters, and the influence of line's mutual link and board layer's property can be neglected.
对于低频电路设计，互连关系视为集总参数，线迹互连和板层特性的影响可以不考虑。
In this paper, the measurement methods for three kinds of parameters of low frequency noise generator are described.
介绍了针对低频噪声源三种参数的测试方法。
Then, multifractal analysis is performed for low frequency sub-band. The multifractal spectrum is used as the characteristic parameters to filter pixels which mark different scenery.
然后对低频子带进行多重分形特性分析，再将多重分形谱作为特征参量进行像素筛选，筛选出标志不同景物的像素点。
An automatic measuring system for measuring parameters in ultra-low-frequency metrology is developed by fully utilizing the existing standard instruments. The system is controlled by a microcomputer.
充分利用现有的标准仪器，在微机统一控制下，组成一个超低频参数计量的自动测试系统。
Components of watermarking with different strength are embedded into the parts of low frequency DCT parameters in different audio segment according to the...
根据音频段的分类效果，不同强度的水印分量被嵌入到不同音频段中的部分DCT低频系数中。
Components of watermarking with different strength are embedded into the parts of low frequency DCT parameters in different audio segment according to the classification results. T...
根据音频段的分类效果，不同强度的水印分量被嵌入到不同音频段中的部分DCT低频系数中。
Components of watermarking with different strength are embedded into the parts of low frequency DCT parameters in different audio segment according to the classification results. T...
根据音频段的分类效果，不同强度的水印分量被嵌入到不同音频段中的部分DCT低频系数中。
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