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- Plant Trunked UHF Radio Systems. 裝置超高頻無(wú)線(xiàn)電系統。進(jìn)廠(chǎng)控制系統。
- RF coaxial connector BNC, TNC, N, UHF. 射頻同軸連接器BNC、TNC、N、UHF。
- Radio Acoustic Sounding with a UHF Volume Imaging Radar. 用UHF容積成象雷達進(jìn)行無(wú)線(xiàn)電光學(xué)探測。
- In the mountains, UHF radio waves may not be a viable alternative. 在多山的區域中，超高頻收音機可能不是能養活的替代選擇。
- VHF, UHF, videography, and infrared systems and headsets. 網(wǎng)站簡(jiǎn)介 : Wireless microphones for working people.
- Implementation and Validation of Range Imaging on a UHF Radar Wind Profiler. 雷達風(fēng)廓線(xiàn)儀立體成像的實(shí)現和確認。
- Purpose: UHF frequency converter, local oscillator，wide band am plifier. 用途:用于超高頻頻率轉換,負載振蕩器,寬頻放大。
- Especially developed for UHF applications are the Waste Bin Tag and Slim Tag. 特別是開(kāi)發(fā)超高頻的應用是廢紙箱標記和微標記。
- Pfizer is using the UHF RFID technology for its case and pallet tags. 輝瑞公司使用的是UHF RFID技術(shù)的案例和托盤(pán)標簽。
- The daily VaRs of stock returns are computed using GARCH (1,1) model, MA method and RiskMetrics respectively. 分別采用 GARCH( 1 ;1 )模型、Risk Metrics和移動(dòng)平均法預測上海股市日收益率的波動(dòng)性 ;計算每天的 va R.
- Purpose: low noise amplifier at VHF, UHF and CATV band applications. 用途:用于甚高頻、超高頻和有線(xiàn)電視頻段的低噪聲放大。
- Stock returns and their volatility are analyzed using the GARCH (1, 1) model with game dummy variables. GARCH(1,1)模型配合球賽虛擬變數被應用來(lái)分析股市報酬及其變動(dòng)性。
- An empirical analysis of the Shenzhen stock market is made by using the GARCH model and the SV model. 摘要文章采用GARCH模型和SV模型對深圳股市進(jìn)行了實(shí)證分析；
- This paper analyses the behaviors of the volatility in the stock Market of Shanghai using GARCH models, and find there is the weekday effect. 摘要利用GARCH模型族，實(shí)證分析了上海股票市場(chǎng)的波動(dòng)特征，發(fā)現存在較為明顯的周日效應。
- This paper studies the Zhengzhou Commodity Exchange(CZCE) wheat futures for nearly four years,the return rate,and GARCH effect. 本文研究了我國鄭州商品交易所(CZCE)小麥期貨近四年的收益序列,采用GARCH和EGARCH類(lèi)模型描述分析了小麥期貨收益的波動(dòng)集群性和杠桿效應。
- The empirical results show that Fractionally integrated GARCH with GED error model performs the best in estimating five percent VaR. 實(shí)證結果表明在估計95%25置信度下的VaR值時(shí)基于GED分布的FIGARCH(1,d,1)模型表現最佳。
- Present a design of the Emissive Microwave Power Control used for the UHF RFID Reader. 介紹一種用于適用于超高頻段以上的射頻讀寫(xiě)器功率控制方案。
- The generalized autoregressive conditional heteroscedasticity (GARCH) model has the ability to describe the volatility of time series. 廣義自回歸條件異方差(GARCH)模型具有描述時(shí)間序列波動(dòng)性的能力。
- Chapter 3 introduce ARCH model originated by Engle,GARCH model,GARCH- M model and asymmetric ARCH model involves TARCH and EARCH. 第三部分介紹了Engle的ARCH模型及以其為基礎發(fā)展而來(lái)的GARCH模型，GARCH-M模型以及非對稱(chēng)的TARCH和EARCH模型。
- GARCH and GARCH-M models imply that the volatility is weakening, and investors who used to be risk preference have become risk aversion. GARCH和GARCH-M模型結論表明股市波動(dòng)趨緩，投資者由風(fēng)險偏好轉為風(fēng)險厭惡。
