frequency selection的例句大全

Secondly, it introduces the frequency selection, EMC ( Electromagnetic Compatibility), the basic generation theory and modulation of the third civil signal ( L5 signal), including LS ranging code, Forward Error Correction, QPSK modulation and Neuman.

其次，介绍了其信号的频段选择、电磁兼容性及其调制和产生的基本原理，包括L5测距码、卷积码、QPSK调制以及Neuman。

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The author also makes some suggestions for frequency selection of digital carrier and parameters selection of spectrum shaping filter.

对数字载波的频率及频谱成形滤波器的特性参数的选择提出了建议。

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adaptive operating frequency selection for skw-othr

天波超视距雷达工作频率点的自适应选择

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Frequency Selection of Medium Frequency Melting and Holding Furnace and Power Calculation

中频感应熔炼炉与保温炉的电源频率选择及功率计算

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The generator of adaptive FH pattern is designed. By using it and the result of the LQA, adaptive frequency selection is accomplished.

设计了自适应跳频图案发生器，利用信道质量评估结果，完成了自适应频率选择。

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Research on transmission characteristics and frequency selection of seismic short wave communication in Liaoning

辽宁区域地震短波通信传播特性和频率选择探讨

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Electromagnetic wave reflection coefficients are calculated out by separate selection variable of gap dimension, clearance, cell period and medium electricity parameter ε? μ, variation specialties are discussed, and the conclusions of frequency selection property indistinctively, wave reflection weak and frequency range extension etc are got.

通过开口尺寸、间隙、单元周期及介质电参数ε、μ的变化，计算了电磁波的反射，讨论了变化的特性，得出这种结构具有弱的频率选择性、波反射减弱和频带展宽等结论。

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dynamic and static information of natural electric field frequency selection method applied to confirm underground water stream channel

利用天然电场选频法的动、静态信息确定地下径流通道

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adaptive real-time frequency selection in hf channel based on minimum interference

基于最小干扰电平的短波自适应实时选频的研究

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through analysis of the theoretical data, such as the intrinsic angular frequency, natural cycles, noise and experimental frequency selection, etc., existing precision measuring instruments and equipment can fully meet our needs.

通过理论数据的分析，如固有角频率、固有周期、噪声和实验频率的选择等等，用现有测量手段和现有仪器精准度，可以完全达到通信的目的。

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According to the maximization utility theory, first, we analyze the diversity characteristic affecting the system optimization, including frequency selection diversity, location diversity, the time diversity and queue diversity of member nodes.

本文根据最大化效益理论，首先，对影响系统目标优化的分集特性理论进行了分析，其中包括：频率选择型分集、地点分集、时间分集以及成员节点队列分集。

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Technical Trend of Mobile Communication Frequency Selection in Japan

日本移动通信频率选择技术动向

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Research and Implementation of Real Time Frequency Selection of Differential Frequency Hopping Communication System Based on DSP

基于DSP的差分跳频通信系统实时选频技术的研究与实现

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frequency offset's effect on hf adaptive frequency selection system and its estimation

频偏对自适应选频系统的影响及估值方法

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Analysis of A/ D Card Frequency Selection Used on Hydraulic Pump testing

液压泵测试用的A/D卡选频分析

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This paper introduces the technical trend of mobile communication frequency selection as well as some measures of development of mobile communication frequency resource.

本文介绍日本在移动通信中频率选择的技术动向以及开发移动通信频率资源的几项措施。

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In the third stage, the form of stimuli, the frequency of knowledge points, the intimate emergence of the present utterances and the subject's cognition hold sway over knowledge selection.

在第三阶段，刺激形式、知识点频度、当前话语的近现性和主体认知水平对知识选择具有重要影响；

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Current feature selection algorithms are all based on term frequency, and ignore the class information in the training sample set. A new feature selection algorithm based on class information was put forward.

目前的索引词选择算法大多是基于词频的，没有利用训练样本中的类别信息，为此提出了一种新的基于类别的特征选择算法。

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This paper compares several feature selection methods in text categorization, proposes a new feature selection method based on term frequency and inverse document frequency.

本文在分析比较几种用于文本分类的特征选择方法的基础上，提出了一种基于术语频率和逆文档频率的特征选择方法TDF。

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Choice A study of Feature Selection for Text Categorization Base on Term Frequency

基于词条频率的特征选择算法研究

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