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- A form of frequency modulation in which the carrier frequency is shifted between a mark frequency and a space frequency in response to the impressed intelligence signal ( frequency-shift keying ). 頻率調制的一種方式,其中載波頻率在標志頻率和場(chǎng)頻率之間移動(dòng),以響應外加的情報(數據)信號。
- The MTF of the same lens in the different space frequency is measured, the results agree well with the practical results. 對同一雙膠合透鏡在不同空間頻率下的MTF值進(jìn)行了測量，所得結果與實(shí)際值基本吻合。
- Objective To explore the curative effects of picture visual evoked potential(PVEP) space frequency stimulation therapy on amblyopia. 目的觀(guān)察圖像視覺(jué)誘發(fā)電位(PVEP)自率空間頻率眼、腦聯(lián)合訓練療法治療兒童弱視的療效。
- According to optical transfer function, degree of modulation and apperceive degree of space frequency vision vs object image, TIFF grayscale scenograph is made. 根據光學(xué)傳遞函數、調制度和空間頻率視覺(jué)及對物象的感知程度，制作TIFF格式透視灰度圖。
- In this paper, two fractionally-spaced space frequency equalization schemes for the downlink of broadband single-carrier multi-user MIMO-CDMA system are proposed. 該文提出了兩種適用于寬帶單載波多用戶(hù)MIMO-CDMA系統下行鏈路的分數間隔空頻均衡接收方案，并進(jìn)行了理論推導。
- G. can be attained, and that in order to enhance S.S.G. for a given saturation efficiency, the changing rate of grating space frequency should be chosen properly. 在保證一定的飽和抽取效率情況下，為了提高小信號增益，應適當地選取光柵的空間頻率變化率。
- Compared with the conventional frequency domain equalization schemes, the proposed fractionally-spaced space frequency equalization ones have better performance with low complexity. 仿真結果表明，這兩種分數間隔空頻均衡接收方案都比傳統的頻域均衡接收方案在性能上有很大的提高，并且復雜度也比較低。
- space frequency transmit diversity(SFTD) 空頻發(fā)射分集
- He vainly tried to mark the defacing stain out. 他試圖除去有損外觀(guān)的污跡，但沒(méi)有成功。
- Her school work isn't quite up to the mark. 她的功課不大符合要求。
- Tell that joker to stop using my parking space. 叫那個(gè)家伙不要占用我的停車(chē)場(chǎng)。
- That was just a lot of hot air what Mark said. 馬克所說(shuō)的不過(guò)是一大堆空話(huà)。
- War has left its mark on the country. 戰爭給該國留下了不可磨滅的痕跡。
- The public scandal left a black mark on his career. 這一盡人皆知的丑聞給他的事業(yè)留下了污點(diǎn)。
- There is plenty of space here to move about. 這里有很大的活動(dòng)空間。
- How much do you know about the works of Mark Twin. 馬克。吐溫寫(xiě)的作品你知道多少？
- Happy anniversary, Helen and Mark! 海倫、馬克，祝你們結婚周年快樂(lè )！
- We're a bit cramped for space in this attic. 在這間閣樓里我們有點(diǎn)活動(dòng)不開(kāi)。
- Mark and Barbara are going together now. 馬克與巴巴拉現在正在談戀愛(ài)。
- There isn't much space left for your luggage. 剩下的地方不太夠你放行李的。
