The wavelet coefficient of the feature band was regarded as the feature parameter of the Acousto Ultrasonic signal and it can distinguish defects from the adhesively bonded joints.
以此特征频带的小波变换系数作为声-超声信号特征参数,可分辨出胶接区域的缺陷信号。
The lifetime is a critical parameter for time hopping ultra wide band(TH-UWB) wireless sensor networks.
生存期是跳时超宽带无线传感网的一个关键参数。
Land surface temperature (LST) is a key parameter in earth environment, the thermal infrared band that can detect LST plays an important role in spectroscopy.
地表温度是地球环境中的一个关键参数,可探测地表温度的热红外波段在光谱谱段中占有重要位置。
In addition the application of STFT for base band analytic signal based frequency hopping signal recognition, tracking and parameter extraction is investigated.
另外研究了STFT在基于基带解析信号的跳频信号识别、跟踪、以及参数提取中的应用。
This article mainly introduces the basic parameter requirement of the wide-band pulse transformers and the basic characters of transformer that used in communication and network technology.
介绍了宽带脉冲变压器设计基本参数要求,及应用于各种通信、网络技术的基本特性。
At high frequency band, the frequency response error of a peak detector is the high frequency resonance error mainly produced by the distributive parameter.
峰值检波器的频响误差在高频段主要是由分布参数产生的高频谐振误差。
The device parameter as well as resonance frequency, mechanical quality factor and work band width were determined by the equivalent circuit input impedance admittance circle diagram.
分析压电式超声波换能器的等效电路,并由等效电路输入阻抗的导纳圆图确定了换能器的元器件参数以及谐振频率、机械品质因数和工作带宽等特征参量。
Band-to-band registration accuracy is an important parameter of multispectral image data.
多光谱图像波段配准精度是多光谱影像数据的一项重要指标。
Parameter coding is the main method of low-rate speech coding and multi-band mixed excitation linear prediction (MELP) coding is one of important parameter coding.
低速语音编码主要采用参数编码方式,多带混合激励线性预测编码(MELP)是参数编码的主流形式之一。
The technologies of signal separation and parameter estimation are the most important technologies of the wide band digital receiver.
从多信号中分离出各信号是宽带数字接收的关键技术之一。
The phase matching transform is performed on the sample series. of narrow-band radar echo, and the centroid position parameter is estimated by searching for the maximum value of the matching function.
然后对窄带雷达回波采样序列进行相位匹配变换,搜索匹配函数的最大值,从而得到质心位置参数的估计值。
Firstly, the requirements of the parameter for the dual-band, common-caliber, wide beam-width and circular polarization antennas are presented.
首先,文中阐述了车载双频段、共口径、宽波束圆极化微带天线的设计要求。
Firstly, the requirements of the parameter for the dual-band, common-caliber, wide beam-width and circular polarization antennas are presented.
首先,文中阐述了车载双频段、共口径、宽波束圆极化微带天线的设计要求。
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