The feature used in the algorithm is invariant with respect to flat fading, and can resist multipath fading of frequency-selecting channel in quite a few degree.
算法所用特征对平坦衰落信道具有衰落不变性，对频率选择性衰落信道也具有很强的抗多径能力。
The phase information of wavelet transform used in the algorithm is invariant with respect to flat fading, and can resist multipath fading of frequency-selecting channel in quite a few degree.
算法所用的小波变换相位信息特征对平坦衰落信道具有衰落不变性，对频率选择性衰落信道也具有很强的抗多径能力。
Selecting the appropriate circuit model and then analyzing their frequency accuracy, the requirement for the noise suppression and channel linearity.
选择合适的电路形式，再分析它们的频率精度和噪声抑制要求，以及对信道的线性要求。
The function of selecting frequency automatically can make the mobile network better.
自动选频功能的实现提高了移动网络的质量。
The selecting frequency network usually located in the amplifying circuit, or located in the positive feedback network.
其中的选频网络一般可以设置在放大电路中，也可以设置在正反馈网络中。
Supposing the LFM signals had been sorted and selecting the instantaneous frequency as identification character, the closest method is used to distinguish the signals.
在对LF M信号实现分选的基础上，选取待识信号的瞬时频率作为识别特征，利用最近邻方法对信号进行识别。
The zero transfer point can be set arbitrarily by appropriately selecting transmitting periodic time T and number N, and it is advantageous to eliminate some interference in some frequency points.
适当选择发射周期T和周期数N就可以随意设置梳状滤波器的零传输点，有利于消除某些频率的干扰；
Selecting the appropriate excitation frequency can well inhibit the conversion mode amplitude.
适当地选取激发频率，能很好地抑制转换模态幅值。
It is performed by introducing the local gradient into local energy and then selecting the low frequency coefficients according to the type and the vale of match measures.
该融合策略首先在区域能量的基础上引入区域梯度，然后根据匹配度的类型和测量值进行小波低频系数的选取。
The errors happening when the blast pulse signals pass the low pass filter system are obtained. It gives the basis for selecting the frequency respond range of the measurement system.
用试验的方法对爆炸脉冲信号区过低系统时带来的误差进行测定，为商量系统频响范围选取提供依据。
The characteristic of selecting frequency of lines is analyzed based on distributed parameter circuit theory. Then, the resonance mechanism of low frequency in wide area is proposed.
利用线路的分布参数电路理论，分析了线路的选频特性，提出了广域系统低频振荡的谐振传播机理。
After frequency selecting when white light walks through the F-P sensor which cavity modulated by temperature, wavelength demodulating is realized with a plane grating and CCD.
采用铜管和端面镀膜的光纤制作f - P传感器，白光光源经过腔长受温度调制的F - P传感器选频后，用平面光栅和线阵CCD实现光波波长的解调。
Unfavorable influences of frequency converter on AC motor and methods of solving are described, providing basis for selecting motor for further development of frequency converter motor system.
阐述了现代变频器对交流电机产生的各种不利影响及解决办法，为今后研究设计变频器电机系统时选择电机提供了依据。
The critical frequency is the function of damping and can be made as small as possible through selecting suitable damping. However the critical frequency has a lower limit.
临界频率是阻尼的函数，选择合适的阻尼可使临界频率尽量小，但存在下限。
Regional flood frequency analysis for un-gauged basins included selecting a pooling-group, estimating the index flood, deriving pooled growth curve and fitting flood frequency curve for tested basin.
无资料地区设计洪水的区域频率分析包括选择相似流域组、估计指标洪水以及推求区域综合增长曲线和设计流域的洪水频率曲线。
Selecting suitable detecting frequency band is the key issue in detecting partial charge through electrical pulse.
电脉冲法检测局部放电的关键问题是确定合适的检测频带。
Aluminum wire ultrasonic bonding; transducer drive current; signal time-frequency analysis; feature selecting; quality online monitoring.
粗铝丝超声引线键合；换能器驱动电流；信号时频分析；特征提取；质量在线监测。
The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band.
声发射源与接收讯号传感器间的距离以及环境噪声的电平是选择频带的主要依据。
Technical measures of using emergency shut valve and selecting regulating frequency pump are put forward in this paper, assuring function elaboration and running reliability of the Shared system.
提出了采用紧急关闭水阀和合理选用变频泵等技术措施。为共用系统的功能发挥和运行可靠提供了保障。
Based on the optical rotatory dispersion effect, an optical filter for selecting the second harmonic of a frequency-doubled laser is constructed from quartz in combination with polarizers.
针对倍频激光中存在基频光的实际情况，依据石英晶体的旋光特性，利用石英晶体和起偏棱镜的组合，设计了一种用于去除倍频激光中基频光的光学滤波器。
Based on the optical rotatory dispersion effect, an optical filter for selecting the second harmonic of a frequency-doubled laser is constructed from quartz in combination with polarizers.
针对倍频激光中存在基频光的实际情况，依据石英晶体的旋光特性，利用石英晶体和起偏棱镜的组合，设计了一种用于去除倍频激光中基频光的光学滤波器。
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