divider n. 1.劃分者;分割者;分裂者,離間者。 2.間隔物;分裂的原因。 3.(割禾機(jī)等的)分切器;【數(shù)學(xué)】除數(shù);除法器;【電學(xué)】分壓器;【航空】減速器。 4.〔 pl.〕劃規(guī),兩腳規(guī),分線規(guī)。 a pair of dividers 一副兩腳規(guī)。
reference n. 1.(對委員、審查人等的)委托;委托項(xiàng)目[范圍]。 2.說到,論到,提到。 3.參考;參考書;附注,引證;基準(zhǔn),依據(jù);關(guān)系。 4.(關(guān)于人品、能力等的)查詢,咨詢,詢商;可供查問的人;證明人,介紹人;(身份、能力等的)證明書,介紹書,服務(wù)經(jīng)歷,鑒定書。 5.參看符號〔如 asterisk[*e], obelisk ?, section§, parallel‖, paragraph π等〕 (=reference marks)。 the commission's terms of reference 委員會的職權(quán)。 R- was made to me. 提到了我;所指的是我。 You make no reference to your plan in your letter. 你信里沒有提到你的計(jì)劃。 a book of reference=a reference book 參考書。 Who are your references 你的證明人都是誰? bear reference to =have reference to. give a reference to 提到,介紹。 have reference to 和…有關(guān)系。 in reference to 關(guān)于。 load one's pages with references (在著作中)引用大量參考資料[文獻(xiàn)]。 make reference to 說到,涉及,提到;參考;查問;介紹。 with reference to 關(guān)于。 without reference to 不管,不論(without reference to age or sex 無論男女老少)。 vt. 加注,附加注腳;給(書等)列出參考書目[注明資料來源]。
The mm-wave section contains quadruple multiplication stage and iq modulation part . measurement has testified that triple-tuning of dds frequency 、 reference divider ratio 、 and loop divider ratio avoided frequencies with high spur level while ensuring the realization of total frequencies . the spur level is below-55dbc and frequency resolution reached 100khz; dds output frequency was up-converted to drive the m / n pll, reducing phase noise, which is better than-87dbc / hz @ 1khz,-92dbc / hz @ 10khz, decreasing frequency-hopping time which is less than 14us 系統(tǒng)分為微波與毫米波兩大部分,微波部分綜合利用了dds、lo混頻鎖相環(huán)和rf混頻鎖相環(huán)實(shí)現(xiàn)兩路頻差15mhz的xband全相參信號;毫米波部分,將xband本振信號四倍頻得到毫米波本振;xband載波信號經(jīng)開關(guān)控制形成脈沖信號,倍頻、iq調(diào)制后得到毫米波發(fā)射信號。