時標信號 的英文怎麼說

中文拼音 [shíbiāoxìnháo]
時標信號 英文
timing signal
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  1. According to the research of physiological and biochemical indicators or index, components of soluble proteins, substrate protein of phosphorylation and the activity of protein kinase in low - temperature stress in the leaves of brassica oleracea l., we tried to find the law of the physiological and biochemical response of brassica oleracea l. leaf to low temperature. at the same time, discussion on the signal transduction can also provide further evidences for revealing the mechanism of low - temperature stress. the results are showed as follows : malondialdehyde ( mda ), superoxide dismutase ( sod ), ascorbate peroxidase ( asp ) and peroxidase ( pod ) activities were changed greatly after 0 ~ 30min ' s treating with low temperature

    本文以甘藍葉片為材料，通過對低溫5脅迫下甘藍生理生化指標、可溶性蛋白組分以及磷酸化底物蛋白、蛋白激酶活性的研究，以期找出甘藍葉片對低溫脅迫的生理生化響應規律，為甘藍露地越冬栽培防範寒害提供理論指導，同時對低溫脅迫下甘藍逆境信號傳導進行了探討，從而為徹底弄清低溫脅迫機理提供進一步的證據，研究的主要結果如下：丙二醛含量（ mda ） 、超氧化物歧化酶（ sod ） 、抗壞血酸過氧化物酶（ asp ）和過氧化物酶（ pod ）活性在低溫處理0 30min發生顯著變化，低溫處理3min后，甘藍葉片內mda含量基本沒有變化，處理5min時出現第一個峰值，達到對照的104 . 10 ， 10min出現低谷，僅為對照的86 . 27 ，隨后再次上升， 30min時超過第一峰值，為對照的113 . 93 。
  2. So it ' s necessary to set up a image processing system to handle the high - speed digital signals, it ' s used to acquire the beaconing light and compute it ' s undershot signal

    因此必須建立一個能夠處理高速數字信號的圖像處理系統，來捕獲信標光並計算出信標光在面陣中的脫靶量，以滿足實時控制系統的需求。
  3. By using the processing method of sliding time window, the problem of the periodicity range ambiguity is solved. meanwhile, the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method. then, the pulse width parameter which is the most important in the parameters of fmicw is analyzed. the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing. at last this thesis introduces the different signal processing methods of fmpcw and fmicw

    同時利用該方法解決了fmpcw信號的由於目標距離超過雷達的最大單值測距范圍而引起的距離模糊問題。然後對fmicw波形參數中最為重要的脈沖寬度進行了分析，給出了更為嚴格的約束條件，保證了信號處理后距離譜峰值的唯一性。最後，分別介紹了fmpcw和fmicw信號的不同處理方式，並對兩者不同的時域濾波性能進行了比較，並對二者的差異進行了分析。
  4. Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used

    通過對差頻信號進行的分析，得出了差頻相位的具體表達式，表現出了要檢測的各量的物理意義，對檢測的方法提供了理論依據。利用二維fft方法，可以有效地提取回波中目標的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題，採取時間波門的處理方法。
  5. The specific research methods are listed : 1. matched filter taking the max ouput snr as the best rule correlates nonstop divided signal and divided echo to detect low snr target signal. then all one dimension divided correlation outs and done fft in portrait to leach interferential signal such as static or low rate mussy meaves, many pathway echo and so on and to take target ' s time difference and doppler frequency that combine parameters that target ' s direction taken from antenna and so on to implement target ' s orientation and tracking

    具體研究方法如下： 1 、採用以輸出信噪比最大為準則的最佳匹配濾波器來對分段的參考和目標信號作相關處理來檢測低信噪比目標信號，然後對一維分段相關輸出組作縱向傅立葉變換來濾除靜態或低速的雜波、多徑回波等干擾信號，並提取目標的時差和多普勒頻率，再結合由天線獲得的目標方向等參數，就可以實現目標的定位和跟蹤。
  6. The fruits of emulational research are obtained : 1 the method of divided planar correlation deal with wonderfully and can detect the target information of tv sound fm signal about time difference and doppler frequency with this understanding of - 20db snr

    模擬研究成果： 1 、分段二維相關處理方法效果不錯，能在- 20db信噪比情況下，可靠地檢測到電視伴音調頻目標信號的時差與多普勒頻率信息。
  7. The problem in high speed signal process, such as parasitic parameter and gate delay is also the difficulty hi the research

    生成高速，穩定的時鐘信號是本課題的目標。高速信號處理所遇到的常見問題，如寄生參數，門電路延遲是設計難點。
  8. This study is supposed that the fsk / psk signal is applied to ground - based searching radar, and the radar video returns which are modeled and simulated consist of target returns and clutter returns

    本文研究的雷達視頻回波信號，是假設採用地面搜索雷達的工作方式時所產生的回波信號，包括對目標信號和雜波信號的建模與模擬。
  9. And validate of this method for broadband signal is also checked

    對目標信號為寬帶時進行了理論驗證。
  10. Theoretical analyze and computer simulation prove that the side lobe canceller system using polarization radar can depress jammer while not damaging the signal, the overall performance is better than that of the system using polarization radar only in the auxiliary antenna

    理論分析和模擬實驗表明使用全極化雷達的旁瓣對消系統，可以在抑制干擾的同時盡量不損失目標信號，系統整體性能優于主天線為單極化時系統的性能。
  11. The analysis is also given on the sphere of application, the complexity of computation. after the extraction of the precise tdoa signal, it is the major problem

    在提取到準確的時差信號后，論文第四部分就如何獲取精確的目標輻射源位置，即定位演算法進行了研究，主要分析了非線性定位方程組的求解技術
  12. Within one single source echo, both doa and time - delay can be estimated simultaneously by this algorithm via high - resolution rotational invariance technique and high - resolution time - delay frequency ( tdf ) technique. the esprit - tdf algorithm has features of low computation, good precision, and high resolution both in doa and time - delay. it is suitable for multiple source exact localization

    該方法利用高分辨旋轉不變技術和高分辨時延頻率技術，可在單次目標回波內實現多目標信號的方位和時延參數的高分辨聯合估計，具有運算量小、分辨能力強、估計精度高等特點，能夠對多目標進行高分辨精確定位。
  13. Meanwhile, the performance of joint estimation of time - delay and frequency using the reduced interference distribution ( rid ) is analyzed comprehensively

    同時還利用減少交叉項分佈（ rid ）實現水下多目標信號的時延-頻率聯合估計。
  14. But when the steering vector errors are in existence, the target - signal cancellation is occurred

    然而，當存在指向矢量誤差時，會出現目標信號被消除的現象。
  15. Again, the keyboard / mouse always generates the clock signal, but the host always has ultimate control over communication

    重復一遍，鍵盤/鼠標總是生成時鐘信號，而主機控制著整個通信過程。
  16. The four - parameter basis functions decomposition of time - frequency signal representation is presented based on the characteristics of doppler frequency of the radar echoes, thereby dopplerlet transform is introduced

    根據接收到的雷達目標回波信號的多普勒頻率特性，提出用4參數基函數的時頻信號表示法，從而引出多普勒小波變換的概念。
  17. Standard - time - signal emission

    標準時間信號發射
  18. High accuracy correlative detection technology of object signal is to search and detect objects by optical correlation, and it can detect real - timely, recognize automatically and orientate precisely, optical correction processes images at light speed and its device is simple, and fourier transformation can be realized

    高精度光學目標信號相關測試技術，利用光學相關探測方法，對要搜索、探測的目標進行實時探測，自動識別，高精度定位。光學相關是以光速進行的，處理速度快，結構簡單，利用由空間域到頻率域的傅立葉變換來實現的，本文針對如何設計傅立葉變換系統實現光學相關進行研究。
  19. By using temporally invariance, constructing two sub - arrays with same array shape, direction of arrival estimation can be obtained using esprit technique

    利用時延數據，以時間變元為旋轉因子，構造了兩個具有相同陣形的子陣，採用esprit實現了對目標信號的波達方向估計。
  20. Give some simulations about the doa ( direction - of - arrival ) estimation based on system of correlation equations. while the improved genetic algorithms was used. comparison of the accuracy of estimation for different objective function and different values of snr are given with narrowband signal

    該方法運用改進后的遺傳演算法對聲壓和質點振速之間的相關方程進行求解，當目標信號為窄帶時，對不同代價函數下遺傳演算法對信號的方位和強度估計進行了比較，並對信噪比、方位角變化時該方法的估計結果進行了模擬研究。
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