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Bollerslev and Engle have some works on high frequency data. 请问这个算是高频数据的问题么？
FFTs only convert amplitude versus time data into frequency data. FFT只是把振幅时间关系转换为频率关系。
If this film series is used in He Ne laser, the dual frequency laser with 5MHz beat will be produced. 此膜系用于氦氖激光器 ,可制出频差为 5 MHz量级的双频激光器。
Dual frequency and amplitudes vibration system may obtain optimal compaction for different quality and course materials. 振动系统：双频率和双振幅设置，保证了整机在压实不同性质、不同厚度的铺层时，均可达到最佳的压实效果；
In order to improve target detection performance and anti-stealth ability for modern AEW radar, this paper presents a solution of dual frequency aperture sharing. 为了进一步提高现代机载预警 (AEW)雷达的目标检测及反隐身能力 ,本文提出双频带孔径共用的实现策略。
The method of measuring deep soil moisture by VHF/UHF dual frequency multiple polarization Synthetic Aperture Radar (SAR) consisting of vector network analyzer is proposed. 该文提出了利用由矢量网络分析仪构造的VHF/UHF双频、多极化合成孔径雷达(SAR)测量深层土壤湿度的方法；
A dynamic adjusting method is presented when some additional information in the high frequency data is available. 文中提出了高频序列有补充信息时对低频预测结果的动态调整方法 .
In order to study the optical feedback characteristics at the dual frequency laser, a birefringent external cavity was studied throughboth theoretical analysis and experiments. 摘要为了研究双频激光器的光回馈特性，采用双折射外腔光回馈的方法，进行了理论分析和实验验证，取得了双频激光器中条纹倍频现象的数据。
Unlike low frequency data,high frequency data has the calendar effects and long memory volatility. 与低频数据不同,高频数据通常具有“日历效应”和波动长记忆性。
The algorithm was presented as a mathematical description independent of any applications and was used to design a dual frequency grating projection profilometry system. 用独立于任何实际应用的一般形式给出了该算法的数学表述 ,并以此为基础设计了一套双频光栅投影轮廓测量系统。
After testing on weekday affect using the high frequency data, it is found that in Monday the return volatility of china stock market is the highest. 用五分钟高频数据对我国股市的周末效应进行检验后，发现我国股市在周一的收益波动率最大。
The application of my CPPLL is deserializer in video system, sampling high frequency data by low frequency clock to generate parallel low frequency data output. 通过对时钟的频率和相位的同步，多相位输出，来对高速串行数据进行解串，输出低速并行信号。
The experimental encryption data is the lowfrequency air zone video signal, the carrier signal is the H.263compression main engine video frequency data. 实验的加密数据是低频空域视频信号，载体信号是H.;263压缩主机视频数据。
This paper introduces a new method for both producing and controlling the frequency difference of a dual frequency laser by using an electromagnetical force which is applied onto the window plate. 提出和研究一种新的方法，即利用电磁铁的电磁力去产生和控制双频激光器的频差。
According to the Y chromosome 12 kind of monomers double allele frequency data,the paper utilizes the principal components analysis and Rough-set Theory to classify in 13 kind of nationalities crowds the northeast area. 运用主成分分析、聚类分析和粗糙集理论;依据Y染色体的12种单体型的双等位基因频率数据;对东北地区13种民族人群进行分类.
With high frequency data and the market liquidity depth indicator VNET, the dynamic features and the determinative factors of market liquidity are studied, and the market microstructure theories are verified. 摘要使用超高频数据，并利用流动性深度指标，研究流动性的动态特征、影响因素以及检验市场微观结构理论，结果支持基于信息不对称下的市场微观结构理论。
Research on Dual Frequency Metal Detector 双频金属探测器的研究
This thesis uses NordNav R30 software receiver and SiGe front end to collect the GPS signals under different environments and store the real intermediate frequency data for after processes. 由于软体接收器具有可程式化的优点，可以将不同的讯号撷取或追踪演算法加入此平台，并可进一步利用此平台来评估此演算法的效能。
The road opened out into a dual carriageway. 这条路已扩展成了复式车行道。
These two audio form compression technology have different advantages in Microsoft company of media technology .WMA only use for compress audio frequency data .Acoustic fidelity is similar to MP3. 微软公司的这两项音频压缩技术各有优点，WMA是在微软窗口媒体技术中只用于压缩音频资料的技术，音质类似MP3。