相干檢測器 的英文怎麼說

中文拼音 [xiānggānjiǎn]
相干檢測器 英文
coherent detector
  • : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
  • : 干Ⅰ名詞1 (事物的主體或 重要部分) trunk; main part 2 (幹部的簡稱) short for cadre Ⅱ動詞1 (做...
  • : Ⅰ動詞1 (查) check up; inspect; examine 2 (約束; 檢點) restrain oneself; be careful in one s c...
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 相干 : 1 (多用於否定句或疑問句) have to do with; be concerned with 2 [物理學] coherent; 相干散射 coher...
  • 檢測器 : detector
  • 檢測 : check; detection; test; gauging; detecting; sensing; [工業] checkout; measuring
  1. Some studies on control modes of the system, especially on a dc, pm, brushless and sensor - less motor driven systems. a method of rotor position identification without sensors has been developed. using a microchip to increate system efficiency, anti - disturbing ability and reliability of pwm modulation

    研究了適于直流、無刷、永磁、無位置傳感電機轉子位置的方法;採用單片機實現了該種電機的運行控制,提高了系統在pwm調制時位置控制過程的抗擾能力。
  2. 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來對分段的參考和目標信號作關處理來低信噪比目標信號,然後對一維分段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。
  3. In the thesis, a signal processing scheme of polarization - insensitive fiber optic michelson interferometric magnetic sensor is described : making the interferometer work near the quadrature with closed loop controlling working point method, the fundamental frequency component of the magnetic field sensing signals can be detected to measure the input direct current ( dc ) magnetic field by phase sensitive demodulation

    本文主要介紹了偏振無關光纖michelson涉型微弱磁場傳感信號處理的方案:通過閉環控制工作點演算法使涉儀工作在正交工作點處,再利用波演算法提取傳感輸出信號的基頻分量,以量直流磁場的大小。
  4. This text draws the basic principle of infrared diagnoses based on the primary knowledge of infrared radiation, and analyse the imaging principle of infrared devices ; from the view of infrared diagnostic technology we discuss the fault models and the principium of infrared diagnosis on electrical equipments ; then this paper research the diagnosis of electrical equipments fault by using infrared devices, obtain the hot picture atlas of equipment fault and analysis the hot picture atlas ; the text analyse the various kinds of possible factor which might effect the results of infrared diagnosing in electrical equipments, and propose correspondingly countermeasure against these factor in order to improve the accuracy of measurement ; finally, by using infrared diagnosing techniques analyse and diagnose the interior or exterior fault in part of transformers and arresters in electric network of si chuan, and the results obtained from the text accord with practice

    本文在紅外輻射的基礎知識上引出紅外診斷的基本原理,分析了紅外成像儀的成像原理;並從紅外診斷的角度研究了電氣設備的故障模式及其診斷的機理;研究了利用紅外熱像儀對電氣設備的故障進行診斷,獲取設備故障熱像圖譜並進行熱像圖譜的分析;對影響電氣設備紅外技術診斷結果的各種可能因素進行了分析探討,並針對這些擾因數,提出了應的對策,以提高的準確性;論文最後應用紅外熱成像技術對四川電網中的部分變壓和避雷典型的內外部故障進行了診斷分析,得到與實際符的結果。
  5. A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it. some results have been summarized as follows : l. according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront, the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied

    本論文在激光光束波前畸變和控制上進行了新的探索,主要就空間位調制環路徑向剪切涉儀以及它對波前畸變的和液晶空間光調制及其對中頻段波前畸變的控制進行了研究,其研究的內容和取得的成果如下:一、根據標量衍射理論,結合低頻波前畸變的高斯隨機位分佈模型,研究了不同均方根梯度低頻畸變波前對激光光束焦斑聚焦性的影響,並採用描述中頻段波前畸變的功率譜密度概念,模擬計算了它對激光焦斑旁瓣的貢獻。
  6. A pn code phase acquisition with non - coherent sequential detection

    基於非序貫實現的偽碼捕獲
  7. 7. based on our crsi and algorithm and double lcslm, an adaptive optical hardware system which c & n be used to model arbitrary complicated wavefront and the compensation of the wavefront can be accomplished was built. and according to the characteristic of a crs interferogram of a step wavefront produced by an lctv, the pixel - level calibration of this system is implemented

    七、採用已建立的空間位調制環路徑向剪切涉儀及其波前重建演算法,和位調制持性已知的兩塊液晶空間光調制,創建了一套用於模擬產生任意畸變波前並加以和反饋控制的自適應光學硬體系統,並通過臺階波前對該系統實現了像素級校準。
  8. It is an effective way to solve this problem by combining piezoelectric quartz crystal sensor array with chemometrics. however, there were few reports in designing electric circuit, which would influence the response due to mutually interfering between oscillators. so, it is necessary to design a vibration circuit and develop it into small and convenient instrumentation to overcome this limitation

    另一方面,單一的具有選擇性的傳感在實際多組分氣體的中受到限制,而採用壓電石英傳感陣列再結合化學計量學手段進行數據處理卻是解決這個問題的一個有效途徑,然而在它的電路設計方面,由於共振電路間的互影響,使受到很大幹擾,因此設計一個互無擾的起振裝置來解決這個問題是十分有必要的。
  9. A kind of mud based on transversal equalizer is recommended, and the performance analysis of ds - cdma systems based on that mud has been done under synchronous channels. then the expression of output signal is deduced. also, the relations among sinr of output signal, snr and correlation matrix of spread code the least mean square error ( lms ) adaptive algorithm is applied to the mud

    論文引入基於橫向均衡結構的多用戶,用矩陣方法推導了awgn通道下、同異步系統中信號輸出表達式,依據最小均方差準則,討論了同步方式下的輸出信號擾比與信噪比、擴頻碼關陣以及用戶功率大小等因素間的關系。
  10. Because mz interferometric optical fiber gyroscope has bigger nonreciprocal phase, the system thermal stability, polarization noise and the error caused by the fluctuation of light source is particular analysed, some effective methods is proposed such as : using the " quasi - white - light " interferometry and the fiber polish technology accurately to control the fiber length, using depolarization light to minish the polarization error, and using temperature control, optical power control and depolarizer to stabilize the output of the light source

    結合mz涉式光纖陀螺的存在較大非互易移的特點,著重從其溫度穩定性、偏振噪聲以及光源波動引起的誤差三個方面分析了抑制噪聲、提高精度的方法,提出了:採用「準白光」量法結合光纖研磨技術精確控制光纖長度差的辦法;採用非偏振光源抑制偏振噪聲的方法;採用溫度控制、功率控制以及消偏實現穩定化陀螺光源的方法。
  11. We also select the microchip pic16f877 made by microchip co. ltd as a control chip to realize micro - computer control. this system use three separate channel to find out the " across the zero point " of each back - emf. the program use digital filter to wipe off the pwm interferences and the commutating interferences

    系統中採用三個獨立通道分別無刷電機三繞組的反電勢的各自過零點,同時在軟體中採用數字濾波以消除其它噪聲擾,使電路到的反電勢過零點更加準確可靠,實現了對五位置傳感直流無刷電機的數字控制。
  12. According to the principle of correlation detection, an automatic measurement system for extinction ratio of polarizer consisted of monochromator and dsp lock - in amplifier and compurer is designed not only to eliminate the influence on measurement accuracy caused by drift of intensity of light source but also to obatain approximate extinction spectrum

    摘要基於原理設計了一套由單色儀、數字鎖放大和計算機聯合使用的透射式偏光鏡消光比智能化試實驗系統,採用雙頻雙光路分光單探接收鎖放大分離信號比對法進行源補償量,克服了光源光強漂移所帶來的影響;實現了可見光區消光比的精確自動量,而且可以得近似的消光光譜。
  13. To overcome these shortcomes, a interference - space - based blind adaptive mmse linear detector and the corresponding tracking algorithm based interference correlation matrix is proposed

    為此,本論文提出基於擾空間線性mmse盲自適應多用戶及其應的基於擾自關矩陣c _ 1跟蹤演算法。
  14. In this paper, a new interference - space - based blind adaptive mmse linear detector and the corresponding tracking algorithm based interference correlation matrix is proposed for mai in cdma wireless celluar communication system. analysis and simulation illustrate that the proposed blind multiuser detector has lower computational complexity, faster convergence and stronger robust with respect to imprecise knowledge of the received signature waveform of user of interest

    圍繞著cdma無線蜂窩移動通信系統中的多址擾( mai )抵消問題,本論文在現有盲自適應多用戶技術基礎上,提出了一種新的基於擾空間線性mmse盲自適應多用戶及其應的基於擾自關矩陣c _ 1跟蹤演算法。
  15. By joining the thinking of decorrelating deletion and pic detection, we build the decorrelating parallel interference cancellation feed back detections and analyse its capability

    結合解關和并行擾去除的思想提出了解關判決反饋多用戶,並對其性能作了分析。
  16. Conventional detector ( single - user matched filter ) distinguishes each user by the crosscorrelation of their spread - spectrum codes. in practice, however, its performance is much deteriorated due to the existence of noise in channel and strong multi - access interference, i. e. near for effect. a new method using independent component analysis is proposed in this paper. the - received energy of signals is controlled effectively, thus the near - far effect is overcome as much as possible ; moreover, the effect that noise imposed on the detector is mostly reduced. simulations verify the effectiveness of this method

    傳統(單用戶匹配濾波)利用擴頻碼之間的互關特性來區分各用戶信號.而在實際應用中,通道噪聲和近距離用戶對遠距離用戶的強多址擾即遠近效應,使得接收機的性能受到很大影響.本文將獨立分量分析法引入傳統接收機,有效控制接收信號的能量,從而極大地提高了接收機的抗遠近性能,同時噪聲的影響被盡可能消除.模擬結果表明了該方法的有效性和可行性
  17. At last the inferencing machine identifies the sort of defect according to the knowledge in the knowledge - base. during the inspecting course contraposing beer quality, it is intractable during disposing and unavoidable in real - life that the interference caused by bottle

    在啤酒質量過程當中,其酒瓶部分所帶給機視覺方面的擾不僅在處理過程當中當的棘手,而且現實當中也是不可迴避與忽略的因素。
  18. The sensor is matched with amplitude modulation operation measurement circuit, and relevant anti - jamming step is adopted. the sensor ' s resolving power is up to lg / m2 or 1 v m

    傳感配以調幅運演算法電路,並採取了應的抗擾措施,使量精度達到了1g m ~ 2 。
  19. Results of computer simulations prove that the mud has higher sinr value, effective mai cancellation, better near - far resistance capability than decorrelating mud. so it ' s feasible and reasonable. simulation results also show that the lms algorithm can exactly converge to stationary value, works well on ber properties and adaptively detects the users " signals

    實驗模擬表明穩態時這種結構的可獲得高於解的信號擾比,能夠有效地抑制多址擾,具有良好的抗遠近效應能力;採用lms自適應演算法時能夠準確收斂到穩態解上,較好的實現自適應
  20. The various performance of the mosos - cfar detector was analyzed. the result shows that the mosos - cfar detector has good performance under the homogenous background, almost the same as that of the mgo - cfar detector ; good performance against clutter edge, excellent performance under multiple targets situation, the detector ' s detection performance dropped not much when the interfering target is less than r - k1 - k2

    計算分析了mosos - cfar的各種性能,分析表明, mosos - cfar在均勻背景雜波中的性能良好,和mgo - cfar性能近;抗雜波邊緣能力良好,但是略差於mgo - cfar;在多目標環境中的性能優秀,當擾目標數少於r - k1 - k2時,性能下降很少。
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