測向器天線 的英文怎麼說

中文拼音 [cèxiàngqìtiānxiàn]
測向器天線 英文
direction finder antenna
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  1. A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals

    無線方向探測器一種無線電接收和指向天線系統，用來確定收到的無線電信號的角方向
  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。
  3. The precise measurement of microwave antenna pattern with lock in amplifier

    利用鎖定放大器實現微波天線方向圖的精確測量
  4. The result shows that the solar radiation pressure moments play a mainly part. based on kalman filtering, three kinds of attitude determination algorithms were studied using the attitude sensor now available on the explorer : the first based on digital solar sensor ( dss ) and gyroscope when the star sensor is not available ; another based on dss, high - gain antenna ( hga ) and gyroscope when the explorer is in the earth - safe mode ; the third based on star sensor combined with gyroscope when the explorer is in the normal mode

    針對配置了典型測量敏感器的深空探測器，基於擴展kalman濾波給出了其姿態確定的方法:針對星敏感器不可用情形，給出了使用太陽敏感器和速率陀螺定姿的濾波器演算法;針對安全模式下的對地穩定定向情形，給出了太陽敏感器和高增益天線融合速率陀螺信息的定姿演算法;針對正常巡航模式給出星敏感器和速率陀螺聯合定姿演算法。
  5. However, df pre - processing is not required in a interferometer direction finder. it only makes use of the phase relations or differences of sensors disposed at different position. azimuth and elevation are caculated from the phase differences or displayed directly on a crt drived by the voltage or current from the phase differences

    干涉儀測向不必進行測向信號預處理而是直接或間接求取在空間上分開的傳感器上感應電勢之間的相位關系，即干涉相位差，方位角或仰角是直接由干涉相位差計算得到，或將兩基線正交的天線陣的干涉相位差轉化為驅動電壓（電流）分別加到crt陰極顯示器的垂直偏轉線圈和水平偏轉線圈，模擬顯示出來波方位，干涉儀測向為典型的相位測向方法。
  6. After the field survey, the technique and implementation group of igcsb chose dajianshan where is 18km away from lanzhou seismic station in the south - west as the array site among several backup sites, and enforced a site survey on august, 1999. eignt suits of instruments supported by the analysis and prediction center, csb were used for the field observation, and 18 sites were deployed on two concentric circles and a beeline respectively. during the 18 days, we achieved about 3gb waveform data

    1999年8月，中國地震局地球物理研究所臺陣建設技術實施組經過實地考察，從幾個候選陣址中選中蘭州地震臺西南方向18km的大尖山作為ims蘭州臺陣陣址，在中國地震局分析預報中心的支持下，投入了8套地震儀器以同心圓分佈和直線分佈方式在蘭州大尖山陣址對18個測點進行了為期18天的野外觀測，取得了約3gb的地震數據。
  7. Methods of measurement for equipment used in terrestrial radio - relay systems - part 2 : measurements for sub - systems - section two : measurements in the antennas and passive repeaters

    地面無線電接力系統所用設備的測量方法第2部分:分系統的測量第2節:天線和無源轉向器的測量
  8. In the moment we are searching electronic weather centers with inside / outside sensors for temperature, humidity, air pressure and wireless outside sensors for wind speed and direction and rainfall volume

    現在我們在詢一種帶外置和內置傳感器的電子天氣監測設備（臺） ，內置傳感器用於測量溫度、濕度和氣壓，外置無線傳感器用於測量風速風向和降雨量。
  9. Finally, based on the observability analysis and error analysis, two autonomous navigation schemes for encounter phase are respectively proposed in detail. monte carlo simulations are done for the two schemes. by analyzing and comparing the simulation results, we can get the conclusion that, under the accuracy conditions provided by the instruments in existence, the position estimation accuracy for probe encountering object celestial body is 0. 42km and 0. 04km, which demonstrate the feasibility of the two navigation schemes

    最後，在可觀性分析和誤差分析的基礎上，分別給出基於圖像測量的自主導航方法和基於視線方向及夾角測量的自主導航方法，並對這兩種方法進行蒙特卡羅數值模擬，通過對模擬結果的分析和比較，在現有儀器的測量精度下，探測器在與目標天體交會時刻的位置估計精度分別是0 . 42km和0 . 04km ，由此表明兩種自主導航方案都是可行的。
  10. In order to predict source location by using the svm regression, we combine the svm theory & the antenna array module, construct a training data structure ; design a new system module which optimize the train machine by altering different parameter

    為了利用支持向量機的函數擬合來預測信源位置，我們將支持向量機理論和陣列天線模型結合在一起，根據兩者的不同特點構造了一個訓練數據結構；並設計了通過改變不同參數對訓練機器進行優化的新的系統模型。
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