Firstly, the case of a single cognitive user's local spectrum sensing is considered.
首先，考虑了单个认知用户的频谱感知。
A method of local spectrum analysis is presented to process a bearing vibration signal based on the vibration frequency structure of a deep groove ball bearing.
在深沟球轴承振动频谱结构分析基础上，引入了振动频谱的局部分析方法。
Through the simulation we've found that not only the local spectrum sensing's performance but also the global cooperative spectrum sensing's performance has got improved.
通过仿真可以发现，本地频谱检测和全局频谱检测的性能都得到了提高。
Based on the theory of the local spectrum of ambient-sea noise field, theoretical models of the low-noise-channel for typical shallow-water negative gradient (or thermocline) are developed.
本文根据海洋噪声场随机局部谱展开理论，分析了典型浅海负梯度(或负跃层)下低噪声信道的理论模型。
Besides, the CR users with high SNR will send assistant information to the ones with low SNR in order to help them complete the local spectrum sensing by double adaptive thresholds energy detection.
此外，信噪比(SNR)高的认知用户，向信噪比低的认知用户发送辅助信息，以帮助它们利用自适应双门限法更加准确地完成本地频谱检测。
Dates and Times provides a broad spectrum of date manipulation functionality, including calculating the difference between two dates and retrieving the local system current date and time.
DatesandTimes提供了大量的日期操作功能，包括计算两个日期之间的差，以及检索本地系统的当前日期和时间。
Regulators have required the merging businesses to sell wireless spectrum, network infrastructure and other assets in some local markets to win their approval.
监管机构都要求合并企业卖掉其在当地市场的无线频谱、网络基础设施及其他资产，以获准并购。
So local enrichment of inclusion results in exceptional spectrum signal of inclusion.
提出夹杂物异常光谱信号是由于夹杂物局部富集产生。
The paper has studied and discussed the amplification of incident waves about acceleration time-domain and acceleration response spectrum in local deposit on the bedrock of single layered soil .
本文研究并讨论了基岩上单一土层中沉积局部场地对入射地震波的加速度时程和加速度反应谱的放大作用。
Under local thermodynamic equilibrium conditions (LTE), the Super-transition-arrays (STA) model is used to analyse spectrum of the Au plasmas.
在局域热动平衡条件下，采用超跃迁阵模型分析热密金等离子体的光谱。
Under local thermodynamic equilibrium conditions (LTE), the simplified STA model is used to analyze the spectrum of the hot and dense Hf plasmas.
在局域热动平衡条件下，采用简化后的超跃迁阵模型分析热密铪等离子体的光谱。
The corrosion characteristics of aircraft structures were briefed. The definition of the local environmental spectrum on aircraft structure was given.
简要阐述了飞机结构的腐蚀特点，给出飞机结构局部环境谱的定义。
Local intermittency measure is introduced to study the properties of local wavelet energy spectrum and to analyze the wind wave data obtained in a wind wave channel.
引入了局域小波能谱的局域间歇性度量，分析了不同风速下的风浪资料，结果表明，局域小波能谱可依局域频率分为三部分。
A direct sequence spread spectrum (DSSS) receiver has strict requirement on local carrier's synchronization, and always needs complex circuits.
直接序列扩频接收机对本地载波的同步要求非常严格，以往所需电路复杂。
Based on the wavelet transform, the present paper introduces a kind of wind waves energy distribution, the so-called local wavelet energy spectrum, into studies of wind waves.
基于小波变换，引入了能刻画风浪局域结构的局域小波能谱。
Because the Local wave T-F spectrum can be showed in the gray image, so we use the moment invariants of time-frequency image as the fault features.
由于局域波时频谱可以表示为灰度图像。因此，利用图像信息的不变矩进行故障特征提取。
In the system of spread-spectrum communication, the essential point of demodulating information is to ensure the synchronism of local PN sequence and PN sequence of received signals.
扩频通信系统中，保证本地产生的PN序列与接收信号中的PN序列完全同步，是正确解调信息的关键点。
He headed a group of engineers, whose duty was to develop frequency synthesizers and local generators for frequency hopping spread spectrum and satellite systems.
他还带领一个工程师团队，负责研究用于跳频扩频以及卫星系统的频率合成器和局部发生器。
He headed a group of engineers, whose duty was to develop frequency synthesizers and local generators for frequency hopping spread spectrum and satellite systems.
他还带领一个工程师团队，负责研究用于跳频扩频以及卫星系统的频率合成器和局部发生器。
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