載波分離 的英文怎麼說

中文拼音 [zǎibōfēnlí]
載波分離 英文
split carrier
  • 載 : 載Ⅰ名詞（年） year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 載波 : signal carrier; carrier wave; carrier: 3路載波 three channel carrier載波傳輸 carrier transmission...
  1. The mainly work of this project : 1 a mathematic model of the ground clutter for airborne pd radar is established and the clutter power spectrum is calculated by the method of integrating reflected energy between constant doppler loci in range - gate circle

    本課題的主要工作包括：一、對機載相控陣雷達的雜波功率譜進行數學建模，採用沿距離門等多普勒線區域積分的方法求解雜波功率譜。
  2. In both radio and television receivers, once the basic signals have been separated from the carrier wave they are fed to a loudspeaker or a display device ( usually a cathode - ray tube ), where they are converted into sound and visual images, respectively

    在無線電和電視兩個接收器中，一旦基本信號與載體電波分離，即被供于擴音器或顯示設備（通常是陰極攝像管） ，在那裡它分別被轉換成聲音和可視圖像。
  3. Take integrity of object information into condition, a two - dimension signal processing method which can make a measurement of the target ’ s speed as well as the range is brought forward at the basis of waveform parameter design. and simulation in the background of hf multi - object with noise is taken. a comparison of signal properties, processing and antinoise detection performance is taken between mcpc and another two high range resolution radar signals : single carrier pulse coded signal and step frequency pulse coded signal

    考慮到目標信息提取的相對完整性，以高頻雷達為背景，在對多載波相位編碼脈沖串信號參數設計的基礎上，推導了三種多載頻相位編碼脈沖串信號的距離速度二維處理過程並相應的對多目標噪聲環境進行了模擬;將多載波相位編碼信號與另外兩種距離高分辨信號:單載頻相位編碼信號和相位編碼階梯跳頻信號，在信號特性、處理過程和抗噪聲特性方面進行了對比;本文從理論上為多載波相位編碼信號的波形設計和分析、信號的處理打下基礎。
  4. In chapter 2, the principle of digital navigating radar is introduced, including the characteristic of electromagnetic wave, the principle of distance measuring and the principle of orientation measuring

    第二章分析了數字化船載雷達的工作原理，主要包括電磁波工作特性、距離測量以及方位測量原理。
  5. The experiments with speech signals and carrier wave signals have been done to validate various bss methods proposed in the thesis and simulation results show that the algorithms are effective

    通過語音信號分離實驗和載波信號分離實驗對本文所研究的各種bss演算法進行了分析和驗證，取得了較為滿意的結果。
  6. The preferences are analyzed, pipe ’ s parameters such as depth, thickness, pipe diameter, and mechanical property of material ; soil parameters such as soil types, internal friction angle, pipe - soil interaction ; fault ’ s parameters such as fault types, fault throw, fault drop, fault - pipe angle, mechanical property of material ; load types such as gravity force, linear displacement load, seismic load and seismic wave. some conclusions are drawn from the calculating results : when buried pipes cross fault, pipe ’ s embedded depth should be shallow, and big pipe diameter and thick wall should be selected. avoid the site where fault moves severe, and select suitable pipe - fault angle

    在有限元三維模型建立中考慮的因素有:管道自身參數如管道埋置深度、管壁厚度、管徑、管道材料等;巖土材料參數如土體類型、巖土的內摩擦角、管土相互作用等;斷層考慮有斷層類型，斷層斷距，斷層錯動距離，斷層與管道的交角，斷層材料的考慮等;荷載分別考慮靜荷載，動荷載，其中動荷載包括線性位移加載、地震力加載和地震波加載等。
  7. This article describes a way of special ultrasonic system which monitors thermal stress in seamless welded rails. this monitoring system is a non destructive testing system, which adopts avr mcu and high - precise time chip processing as the core of it, and adopts the critically refracted longitudinal wave as the object of measuring. my studying focuses on the theory of the monitoring system, which will be listed in this arctile : according to the snell theory, the theory of motivating of critically refracted longitudinal wave is described in details, and the finite element software is used to emulate the propagating course. the formulas of calculating the pts of swr are taken from the acoustoelasticity theory, and the calculating the parameters is introduced. according to assemble materials, three kinds of ways of monitoring the pts of swr using critically refracted longitudinal wave are described, which are measuring the sound - time in changeless distance, ultrasonic critical - angle refractomery and frequency spectrum, the first way of ways is used in this experiment system. the factors, which effect the monitoring system, are assaid in some degree based

    本文的研究工作重點在無縫焊接鋼軌溫度應力測量系統的理論模塊，包括根據snell原理，研究極限折射縱波的激發機理，並使用有限元軟體ansys進行模擬;根據聲彈性理論以及公式推導出計算無縫焊接鋼軌中的溫度應力的公式，並對其中參數的求解方法進行介紹;根據收集的資料，介紹了三種使用極限折射縱波測量無縫焊接鋼軌溫度應力的方法，即固定距離測量聲時法、臨界角折射法和頻譜分析法，本實驗系統使用的是第一種;根據實驗經驗以及相關資料，分析了影響極限折射縱波測量溫度應力的幾個因素，並提出了相應的解決方法;根據實驗系統的需要，獨立設計並加工出相關配套的實驗設備，包括實驗鋼塊、有機玻璃楔塊、固定件、載荷外框裝置等。
  8. Based on the resolving algorithm of continuous - layer method, the time order analyzing curves, acceleration curves and the response spectra of transfer function at the different points of the ground and at the same point on the different ground conditions are gained. it demonstrates that the responses of ground in x, y and z axial directions all change by time, and the obvious wave propagation appears in ground. for different observing points on the same ground condition, at more distant points from the load line, the less swings are found, that is to say, vibration possesses the obvious characteristic of attenuation

    基於分層法的解析演算法，得到了在不同點以及在同一點但不同地質條件下的時程分析曲線、加速度變化曲線和傳遞函數反應譜，結果表明，地基土在x 、 y 、 z三個方向的響應都是隨時間變化的，並且伴隨有明顯的波動現象產生；對于相同地質條件的不同觀察點，距離荷載作用線越遠的地方振幅越小，即振動具有明顯的衰減性。
  9. A new experimental and training system with modular hardware and software is introduced in this paper based on the research and analysis of the principle, structure and realizing method of microprocessor relay protection and safety automation equipment and the constitutes of cut - up arrangement substation integrated automation at home and abroad whose function includes relay protection experiment, such as current protection, distance protection and so on, and substation integrated automation experiment etc. the structure and function of the experimental and training system are introduced in detail, the principle and function of the hardware section are analyzed, and the method of software designing and programming is concisely set forward. in this paper, a new communication mode between computer and the rs - 485 bus and the can bus by using the computer ' s epp port and an effective method of software ' s remote downloading are brought forward

    論文在研究和分析了國內外微機保護和安全自動裝置的原理、結構和實現方法以及分散分散式變電站綜合自動化系統構成的基礎上，開發了一種硬體和軟體模塊化，能實現電流保護、距離保護、故障錄波等多種繼電保護和安全自動裝置功能以及變電站綜合自動化功能的實驗培訓系統，詳細介紹了整個實驗培訓系統的結構和功能，分析了硬體部分的原理和作用，還簡要闡述了整個軟體編制的大體方法，並提出了一種利用計算機的epp口實現上位機與rs - 485總線和can總線通信的新型通信方式，提出了一種利用psd913f2的雙flash的特點進行軟體的遠程在線下載的方法。
  10. At present the manufacture of surface acoustic wave use the technology of the final submicron. a series of the devices of low insertion loss, high q saw rayleigh surface acoustic wave resonators or stws that insertion loss has less than 5db, load quality factor ( ql ) is more than 1000 on the quartz piezoelectric with zero of first temperature factor in the research. these difference frequencies are 60mhz, 280mhz, 739mhz and 1ghz of normal frequency and at also surface acoustic wave. using 1. 25db noise factor amplifier, careful design curcuit, good setting printed curcuit board, and using the 1ghz surface transverse wave resonator as frequency element, researching the low phase noise surface acoustic wave with sideband phase noise near ? 120dbc / hz deviating 1khz on carrier, spurious suppress with 80db

    本研究採用一階溫度系數為零的壓電石英基片上製作出損耗小於5db 、有載品值因素（ ql值）超過1000的一系列低損耗、高q值聲表面波rayleigh波或stw諧振器，頻率分別為60mhz 、 280mhz 、 739mhz和1ghz等不同頻率的高性能聲表面波諧振器。並採用噪聲系數為1 . 25db的低噪聲系數放大器，精心設計電路，優化設計布置印製電路板，用標稱頻率為1ghz的聲表面波諧振器為頻率控制元件，製作出在偏離載頻1khz處的單邊帶相位噪聲近- 120dbc / hz 、雜波抑制達80db以上的低相位噪聲聲表面波振蕩器。
  11. Then combined with the two main mechanisms it is putting forward the idea of compound - mechanism antimicrobial. as a result, there come the two types of nano - inorganic antimicrobials : ( 1 ) ion - sterilizing antimicrobial which utilized the sterilization function of re and used the powder ( active sio2 ) as carrier. ( 2 ) compound - mechanism antimicrobial which has both the sterilization function of re and the light - catalyzing sterilization function of nano - tio2 whose wavelength of light - absorption has einstein shift because of the mix - into of re

    首先對市場上主要的抗菌劑產品進行歸類，對其殺菌機理進行對比分析，結合離子殺菌與光催化殺菌，提出了復合機理抗菌劑的思想，研製出：以稀土為殺菌主體，活性sio _ 2為載體的離子型抗菌劑；以稀土為離子殺菌部分，納米tio _ 2為載體，且在稀土離子的摻入下，納米tio _ 2的光吸收波長發生紅移，進入可見光區而提高光催化能力的復合機理抗菌劑。
  12. As an implementing method of multi - carrier modulation ( mcm ), discrete multi - tone ( dmt ) modulation uses inverse discrete fourier transform ( idft ) vector as its modulating vector, and discrete " fourier transibrm ( dft ) vector as its demodulating vector, and the process of modulating and demodulating can be realized by using their fast calculating method

    作為多載波調制的一種實現形式，離散多音頻（ dmt ）調制分別採用逆傅立葉變換矢量和傅立葉變換矢量作為調制矢量和解調矢量，從而調制和解調過程可以利用這兩種變換的快速演算法實現。
  13. It produces the i and q signals, limits their pass bands, uses them to modulate the subcarrier in a quadrature and adds the moduled subcarrier to the luminance y, blanking and synchronizing signal waveform

    它首先分離出i信號和q信號，指定了它們的傳輸頻帶，並用它們對副載波進行正交調制，然後將調制過的副載波信號疊加到亮度信號y和同步信號波形上。
  14. In this paper, aimed at the problems existed in theoretical analysis and application of ftm, the discrete fourier transform method is applied to analyze the traditional ftm ( tftm ). and computer simulation is applied. the main propose is to solve the problem, such as frequency shifting, selection of carrier frequency big or small and selection of filter window size. considering the feature of double - exposure holographic interferometry, we propose a modified ftm ( mftm )

    針對二次曝光數字全息干涉術中ftm存在的理論缺陷和具體應用到二次曝光全息干涉計量中存在的問題，本文從離散傅立葉變換的角度對傳統的傅立葉變換法（ tftm ）進行了理論分析和計算機模擬計算，並重點致力於解決ftm中的移頻問題、載頻大小的選擇以及濾波窗口大小的選擇等關鍵問題，結合二次曝光全息干涉的特點提出了改進的傅立葉變換法（ mftm ） 。
  15. Furthermore, soft - relay is employed to reduce the coupling of the three - phase voltages and prolong the distance of communication, which intensifies the capability via price, reliability and stability of the system

    系統中採用軟中繼有效地解決了三相電的耦合問題、增長了其通信距離，從而使得低壓載波電力線較好地運用於智能大廈遠程抄表系統，充分發揮系統性價比高、可靠性好、運行穩定等優勢。
  16. The signal character of missile - borne strip sar makes in favor of correcting the linearity range walk in time domain. based on the character this paper discusses the theory and processing flow of the linearity range - doppler algorithm, and make simulation to analyzing it

    彈載條帶式sar的信號特點使得有利於直接在時域對回波信號的線性距離走動項進行校正，針對這一特點本文討論了線性range - doppler演算法的原理及流程，並對此演算法進行了模擬分析。
  17. The tunable performance can be realized by rotating the electro - optic material in the electric field. now with the development of the crystal material science, the electro - optic tunable filters are used widely. basing on the theory of lyot filter and electro - optic effect of liquid crystal, tunable liquid crystal lyot filter is designed and tested in this paper

    近年來隨著晶體材料科學的發展，利用晶體的電光效應製成的電光可調諧濾光片得到了很大的發展，它已廣泛用於波長信號分離、傳感器保護、機載水文探測、遙感領域，並且在光纖通信中有很大的應用前景。
  18. A cycle - slip detection and correction technique is developed to detect and correct cycle slips in dual - frequency carrier phase, named as least - squares - search method for cycle slips, which can correct almost all cycle slips when data gap is shorter than a few minutes, with the help of the geometry - free phase combination and the pseudorange minus phase linear combination

    提出了一種周跳檢測與修復的新方法，即最小二乘搜索法。綜合應用電離層殘差法、偽距載波組合觀測值法、最小二乘搜索法等方法，可修復失鎖時間長達數分鐘的周跳。
  19. The kernel for the development of impact identification techniques and the means for error elimination are proposed. on the basis of the modal model theory and the conception of spatial filtering which is derived from the field of control, a more precise force identification model is developed based on the discrete modal filter

    在動載荷識別的模態模型法理論基礎上，通過引入控制領域業已應用的空間濾波概念，提出利用離散模態濾波器的正交特性以分離出各階模態對系統響應的獨立貢獻，構造的動載荷識別模型減少了演算法實現的計算量。
  20. My work focused on the experiments and research of the communication system through power lines based on the spread spectrum theory and analyzed the advantages and main problems of the system

    重點對電力線的擴頻通訊系統做了大量的實驗和研究，分析了擴頻載波技術在電力線通信系統中的優勢和主要問題，並提出了延長電力線傳輸距離的措施和方法。
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