本文研究设计了一个低相噪毫米波点频源。
In this dissertation, a low phase noise millimeter wave point frequency source is studied.
第五章主要说明了如何利用软件来进行点频和扫频状态下的参数测量，并对测量结果进行了讨论。
Chapter 5 introduces how to use software to make measurements in state of dot frequency and swept frequency, in addition measurement results are discussed.
因为甚高频无线广播中，两个模拟频点之间的频道必须留着不用，为的是不干扰邻近频道。
In over-the-air VHF broadcasting, the channel between two analogue stations had to be left unused so that it would not interfere with adjacent ones.
故此，“全球病毒预警组织（GVFI）”参与了病毒监测系统的建设，在病毒频发的“热点地区”，如中非和东南亚等地，设立监测点，对病毒转染病例进行早期发现和早期预警。
The Global Viral Forecasting Initiative is therefore involved in setting up a monitoring system in viral “hot spots”, such as central Africa and South-East Asia, to catch such transfections early.
我公司具有较强开发能力，自行开发的30个频点带发射的教学复读机，目前在国内领先。
Our company has strong development capabilities, self-developed 30-point frequency band launch teaching reading, the current leader in China.
小波变换具有良好的时频局部性，具有变焦距的特点，对故障信号中的奇异点能够准确识别，是论文中应用的主要分析方法。
Having good time-frequency localization character, and correctly identifying singularity point in fault signal, Wavelet is the main analysis method in this paper.
目的用公共的低速采样频率对全频段内许多不同频点的带通信号进行采样。
AimTo use the common sample frequency in low speed to the sample of band-pass signals of multiple different frequency point in full frequency rage.
不要在这个划频点下过分延长划距，这实际上反而是你更加低效。
Don't overly lengthen your stroke below that point by trying to over-glide, it actually makes you less efficient, not more.
利用电力系统三相交流电压过零点和高速数字频率合成器解决了跳频系统中同步和快速频率合成的两个关键问题。
The zero-crossings of the AC voltage and digital frequency synthesizer are used in solving the two main problems in frequency hopping system-synchronization and fast frequency synthesizing.
进一步在某无线电系统中的应用发现，用户可方便地设置所需频点；
The more applications in the wireless system find that the users can set necessary frequency conveniently.
通过单频点级间匹配电路的设计实例，给出了匹配电路的设计步骤、电路拓扑结构和元件类型的选择方法。
The design steps, network topology and the selection of its component types of a single frequency point matching network are described in detail by an example.
文章提出一种新型结构，通过加入变容二极管，实现了在固定频点上波束可控，更适于实际应用。
Through adding varactors, a new structure is introduced and it realizes controllable wave-beam of fixed frequency which is better for practical use.
城市道路平面交叉口是城市路网中重要的节点，也是事故频发和造成交通延误的瓶颈点。
The intersection of urban road network is an important urban node, is also a frequent accidents and traffic delays caused by the bottleneck point.
如何通过有效的规划设计，使得整个网络各个扇区载频的频点都能够满足要求，保证通话质量，提高系统承载容量是频率规划的核心内容。
The key problem in frequency planning is to ensure that frequency planning satisfies the need of the whole network, call quality, and improves the whole capacity through effective planning design.
它具有频率选择性好，通带插损低，对陷波频点抑制较高的优点。
It is characterized by good frequency selectivity, low insertion loss and high attenuation of specified frequency.
基于小波变换原理，利用小波分析中的奇异性检测方法来对瑞利波频散曲线的特征点和波动区段定位。
Based on the characteristics of wavelet transform, the wavelet Singularity Detection is used to locate the feature point and anomaly extension of the Rayleigh wave dispersion curve.
利用铁谱分析技术和振动分析技术中的时频分析方法研究了模拟点蚀故障齿轮磨损与振动的关系。
The relation of wear and vibration of gear of simulating pitting fault was studied by using ferrographic analysis and the time and frequency spectrums of vibration analysis technology.
同时进行了裸盘正弦扫频振动失效试验，准确测量了硬盘的振动失效频率点和振动幅值。
Simultaneously, the sine sweep vibration tests are carried out to measure the vibration frequencies and amplitude which lead to operation failure of HDD.
在声发射信号的处理中使用了时频分析工具—小波包，将信号在不同尺度上分解，以便确定信号在奇异点处的时频特征信息。
In processing the AE signal, the analysis tool of time and frequency-wavelet package is adopted, in order to confirm the characteristics of time and frequency in strange points of the signal.
提出一种跳频电台通过抑制跳频频率点、破坏干扰站网台分选的方法，从而达到对抗跳频跟踪式干扰的目的。
A method of controlled frequency points is put forward, which can destroy FH signal sorting. So the running-after-sport jamming will not be effective.
介绍了两个可以用于多信号测电子科技大学博士论文频的技术：频率信道化和过零点谱分析。
Two technologies, spectral channelization and spectral analysis with zero crossing that could be both applied to multi-signals, are also introduced.
根据跳频信号瞬时带宽，将潜在跳频频率点邻域时频图投影到时域，分选潜在频率跳变点集合。
The potential temporal hopping point set is fetched from the temporal projection variance of the adjacent domain time-frequency image according to the instantaneous signal bandwidth.
提出了频点自跟踪自适应频率估计器。
Frequency auto-tracking adaptive frequency estimator (FATAFE) is brought forward.
同时从理论上对其参数的选择进行了分析，证明了采用该算法的差分跳频系统能够均匀使用每个频点。
The methods of the parameter selection for the G function were given in theory, and the quality of the uniformity usage of the frequency points in the DFH system range was analyzed.
提出了一种基于混沌相空间重构理论的优化近邻点局部线性化跳频预测方法。
Based on the theory of chaos phase space reconstruction, a local linear forecasting approach on selecting the optimal neighbor points is presented in this paper.
青山隐隐孤舟微，山色空蒙雨亦奇，那些西湖边的步履，那些频低的眉，荷心万点，君记否？
Castle Peak is a mountain after Meng Yu micro, but strange, the West Lake side of the action, the frequency of low brow, Dutch Heart million points, you remember?
它可强制滤波器组的频率特性在零频形成零点并使旁瓣面积最小。
It can constrain frequency response of filter Banks to form null at zero frequency point and to obtain minimum side lobe area.
将渐近波形估计（AWE）技术应用于分层微带结构宽带响应的快速计算，避免了逐频点计算；
To avoid computing point by point, the AWE is applied to the MoM solution of microstrip structures in multiplayer media for efficient evaluation of the frequency response over a broadband.
只要信噪比不甚低，频点自跟踪频率估计是无偏的且估计方差接近理论下限。
FATAFE realizes unbiased estimation and its estimated variance approaches to theoretical lower bound if only signal-to-noise ratio is not very low.
只要信噪比不甚低，频点自跟踪频率估计是无偏的且估计方差接近理论下限。
FATAFE realizes unbiased estimation and its estimated variance approaches to theoretical lower bound if only signal-to-noise ratio is not very low.
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