s-band中文意思是什麼

s-band 的中文意思

s-band 例句

1. De s ign of the electron gun for s - band high power twt
   波段大功率行波管電子槍設計
2. Hi s vocation : micky rooney s band
   他的職業是：米基魯尼樂隊。
3. A s it happen s , nikonov' s band i s a brave and venture s ome one.
   尼科諾夫這支游擊隊碰巧是一支敢於沖殺的隊伍。
4. The carrier wave i s modulated directly by the ba s e band s ignal at s everal frequency point in l band and s band . fir s tly, thi s paper clarifie s the theory of i / q modulation, elaborate s evm and acpl, and analyze s the effect of amplitude and pha s e unbalance and dc off s et on evm. s econdly we review the ba s ic principle of pha s e locked loop and it ’ s compo s ing part s , including the ba s ic conception and de s ign method of pll frequency s ynthe s izer, e s pecially introduce the charge pump pll frequency s ynthe s izer in detail
   首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。
5. Hydrogen, fluorin, carbon and oxygen are familiar element s in p s confirmed by different experiment s . porou s s ilicon can radiate s trong near infrared, vi s ible and near ultraviolet light, but whole s band i s mo s t intere s ted in
   經過陽極化處理后得到的多孔硅能發射較強的近紅外、可見和近紫外光，而人們最關注的是ps在整個可見光波段（ sband ）的發光。
6. General s pecification for unified s - band ground tracking telemetry and command s y s tem
   地面統一s頻段測控系統通用規范
7. Inve s tigation on s - band long pul s e relativi s tic kly s tron amplifier
   波段長脈沖相對論速調管放大器的實驗研究
8. Ba s ed on re s earch and experiment s , we effectively improved the s - band tt & c tran s ponder for s atellite in s uch dimen s ion s : with s en s itivity up to - 92dbm ; dynamic range wider than 55db ; capture band width of the receiver wider than 500khz ; capture time reduced to 22m s
   通過論文工作，成功地改進了川于衛星的s波段測控通信一體機，跟蹤和捕獲接收靈敏度都能達到一92dbm ，動態范圍55db以上，接收機的捕捉帶寬大於500khz ，捕捉時問減小到22ms 。
9. Range zero value s analy s i s of s hip - ba s ed unified s band s y s tem
   距離零值標校數據分析
10. De s ign con s ideration s of the high power s - band rka are de s cribed, by u s ing electron beam s of voltage - 600kv, current - 5000a, and the numerical s imulation s for three kind s of the rka output s tructure s are given. the three kind s of the output s trcture s are s ingle - gap s tanding - wave ( s w ) cavity, traveling - wave ( tw ) output s tructure, and two output s tructure s ( s ingle - gap + traveling - wave s tructure ). under condition s of u s ing two output s tructure s , the re s ult s s how that the in s tantaneou s peak power obtained from s w output cavity and tw output s tructure i s re s pectively 2. 4gw and 2. 1gw, the both power average of 0. 96gw and 0. 93gw, i. e. the s - band rka of two output s tructure s generate s peak output power of 1. 89gw at a frequency of 2. 85ghz
    從數值模擬中得到雙輸出結構的微波功率輸出結果為:駐波輸出的瞬時功率為2 . 4gw （周期平均為0 . 96gw ） ;行波輸出結構輸出瞬時功率為2 . 1gw （周期平均0 . 93gw ） ，就獲得了頻率為2 . 85ghz的微波輸出。本文簡要的描述了電磁軟體（ magic ）對速調管輸出腔體進行了模擬，並對相應的模擬方法進行了評述。
11. Three - dimen s ional s imulation of a broad band high - power cw s - band coupled - cavity traveling - wave tube
    波段寬帶大功率連續波耦合腔行波管3維模擬設計
12. I s olator s , s - band , micro s trip, type gw9040, detail s pecification for
    Gw9040型s波段微帶隔離器詳細規范
13. The paper analyzed an s - band s ingle ridged waveguide antenna u s ed for near field mea s ure by fdtd method and microwave tran s mition line theory
    本文採用fdtd方法以及微波傳輸線理論對一個用於近場測量、工作在s波段的單脊波導天線進行了分析。
14. Citizen ' s band
    民用電臺頻帶
15. An s band " s s a + cfa " chain i s experimentally s tudied in thi s paper
    可靠性指標也將大大提高，由於不需要燈絲預熱，可實現放大鏈的瞬時開機。
16. Morning after the bazaar dance when may s band played ponchielli s dance of the hour s
    在義賣會舞會上，梅氏樂隊83演奏了龐契埃利的時間之舞。
17. The fir s t chapter, introduce the rf receiver ’ s devolop and current s ituation. the s econd chapter, introduce the effect of the exterior environment to the rf receiver. the third chapter introduce s ome different s tructure and the de s ign parameter s of each s tructure s . the parameter s of the rf receiver are introduce in fourth chapter. the fifth chapter de s ign a s band rf receiver. thi s s band rf receiver u s e a s tructure of s uperheterodyne module
    第五章，介紹了一種s波段射頻接收前端的設計，基於分析的結果對一種射頻接收機的低噪放大、下變頻、鎖相環（ pll ）頻率合成器、中頻agc電路進行了設計，並在第六章完成了接收機各組件及總體的測試。
18. Normal micro - s trip antenna i s widely u s ed for it s low profit weight and volume, but it ' s band - width i s a little poor
    常用的微帶貼片天線有剖面薄，體積小，重量輕等優點，因而得到廣泛的應用。
19. It empha s e s on the s y s tem of s ignal pul s e s ignal channel s , and s et s forth the method s of realizing 、 way of demodulation 、 advantage and di s advantage. afterward s , the paper introduce s how to de s ign a “ s band remote mea s uring receiver ”
    重點介紹了單通道單脈沖跟蹤體制，對其實現途徑、解調方式、較其它體制的優缺點作了全面的闡述。
20. There are three power tran s i s tor which have been widely u s ed in s band now : bipolar junction tran s i s tor ( bjt ), gaa s metal - oxide s emiconductor field effect tran s i s tor ( gaa s mo s fet ) and lateral diffu s e metal - oxide s emiconductor field effect tran s i s tor ( ldmo s fet ). thank s to the advantage s , s uch a s , wide frequency, ea s y power s upply, good s tability, the ldmo s fet ha s u s ed in the motion telecommunication
    目前在s波段人們常用的放大器有雙極性晶體管（ bjt ） 、砷化鎵場效應晶體管（ gaasmosfet ） 、邊緣擴散場效應晶體管（ ldmosfet ）等，由於ldmosfet具有頻帶寬、供電方便、穩定可靠等優勢，目前已經廣泛用於移動通信3g的研究。

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