ground signals 中文意思是什麼

ground signals 解釋
地面信號
  • ground : adj 碾碎了的,磨過的,磨成粉的。 ground and polished piston 【機械工程】研磨活塞。n 1 地,地面;...
  • signals : 信號
  1. Signals were strong in the cell periphery of procambium, and longitudinal signals were stronger than lateral ones ; in root ground meristem cytoplasm, concentration in the perinuclear region was stronger than one in the cell periphery. in cell periphery of root ground meristem, distribution of actin mrna was heterogeneous, longitudinal signals were stronger than lateral ones ; in callus meristem cytoplasm, concentration in the perinuclear region was low ;

    這表明,從棉花愈傷組織薄壁細胞到鳥巢狀管胞團再到正常苗的過程中肌動蛋白mrna的分佈和濃度都有明顯的變化,而在這里愈傷組織在分化到鳥巢狀管胞團后就不再繼續發育,因而推測,肌動蛋白mrna分佈和濃度可能影響愈傷組織分化出正常的植株。
  2. It was originally envisioned as an air superiority fighter for use against the soviet air force, but is equipped for ground attack, electronic warfare and signals intelligence roles as well

    這是原來的設想,作為空中優勢戰斗機使用,為抗擊蘇聯空軍但配備用於地面攻擊,電子戰和信號情報的作用等
  3. Based on mono - pulse radar system and the analysis of terrain echoes, a geometrical model of air to ground ranging is constituted. by using the signals received from the sum and difference channels of terrain follow radar, a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained. according to the characteristics of the echoes, the theory and method of pass zero detection of difference channel and its applications are discussed in detail

    針對一維單脈沖雷達體制,分析了地形目標回波特性;建立了地形跟隨雷達空地測距的幾何關系;利用雷達收發信號,導出了地形跟隨雷達和差接收通道的回波信號表達式,進行了波形模擬,得到了地形跟隨雷達的地面散射產生回波在時域中的特性;根據和差回波特性,闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用,並給出了真實雷達對外輻射試驗的結果,驗證了文中的模擬。
  4. Satellite radio signals are broadcast to earth by powerful transmitters circling in geosynchronous orbit rather than from conventional radio towers on the ground

    衛星廣播訊號是透過同步衛星上的強力發射器傳送到地球上,而非利用地面上的傳統廣播電塔。
  5. In the second method, wavelet transform is combined with modal transform, and transient travelling - wave signal is used. after three phase signals are decomposed into their modal components, the wavelet transform coefficient of ground mode can be used to identify approximate position of fault, and the wavelet transform coefficient of aerial mode is used for identifying arrival time of traveling - wave

    第二種方法將小波變換與模式變換理論結合起來,採用的是暫態行波信號,首先將三相信號轉換成模式分量,零模分量的小波變換系數用於判別故障的大致位置,然後利用線模分量的小波變換系數來確定行波到達時間。
  6. " with the implementation of the ifr procedures, pilots can utilise signals from ground navigation aids and fly along the designated ifr routes even when the visibility precludes visual flights. the regularity of the helicopter service between hong kong and macau is therefore improved, " the spokesman said

    他說:儀表飛行規則程序獲準使用后,即使能見度低至不可能靠目視飛行,飛行員仍可根據地面導航儀器所發出的信息,以設定的儀表飛行規則路線飛行,令來往港澳之間的直升機服務更有規律。
  7. Feature extraction and classification of ground penetrating radar echo signals

    探地雷達回波信號的特徵提取和分類
  8. To avoid the serious electromagnetic interferer, the analog signals are transformed to frequency pulses which are transferred to the kernel of the system. in the measure of the groove voltage, the method of float - ground is adopted to avoid the high common signal and the range switch circuit is designed to solve the conflict of the wide dynamic range and the high precision. least square curvefit is adopted to reduce the system error

    鋁電解生產現場電磁干擾非常嚴重,為此我們將需要測量的模擬信號就近轉換為頻率脈沖后再傳送到控制核心;採用浮地接入方式消除槽電壓信號中的共模成分;設計了量程自動切換電路以解決槽電壓的動態范圍寬和測量精度高的矛盾;用最小二乘法進行曲線擬和以降低測量的系統誤差。
  9. The multipath interference, resulted from interfering between the signals of the line of sight ( los ) and the line of ground reflection in vhf - rc, makes bit error rate of data transmission increased and system reliability attenuated

    當前,中國水波中繼通道以直視路徑傳播為主,同時存在地面折射路徑對直射信號產生干涉,造成多徑干擾。這種干擾使得信號傳輸的誤碼率上升,系統可靠性下降。
  10. Both the radiosonde and the ground station are equipped with antennae for reception of gps signals from at least 4 satellites ( figure 1 )

    在探測過程中,無線電探空儀和地面站均裝有gps天線,可接收最少4個衛星發出的信號。
  11. The basic principles still apply : ground impedance must be as low as possible, high level and low level signals must be separated so that they do not interfere with each other, and capacitance and mutual inductance coupling must be avoided

    前文提到的原理仍然適用:地線阻抗要盡量小,大功率信號和微弱信號要分開布置以避免串擾,一定要避免電容性耦合和電場耦合。
  12. And some useful rules are concluded from these experiments. the pd signals on different frequency scopes are surveyed, and the thesis explores anti - noise narrowband detection of partial discharge signals. for the first time the thesis brings forward the choosing - frequency detection of pd ground on the radio frequency communication

    同時,進行了局部放電不同頻段信號檢測,為窄帶抗干擾檢測技術奠定基礎,並首次提出基於射頻通訊原理的選頻檢測原理及檢測設想;在實驗室中進行了局部放電超高頻信號的檢測,驗證了超高頻法檢測局放信號時對空間電暈干擾的抑制作用。
  13. Although the engines restarted before the pilot was even aware of the problem, the momentary power loss dropped the telemetry signals to the control room on the ground

    在飛行員還未意識到出問題前引擎就重新啟動了,但是故障瞬間造成的電源中斷也切斷了和地面之間的聯絡。
  14. According to development of inland and abroad, a new measurement method has been put forward that make use of the periodic characteristic of the phase difference between two arbitrary frequency signals. in the light of lissajous graph, we complete comparison of radio frequency and microwave with 105 rates relationship in technique. on the ground of common characteristic of frequency signals, this method can be developed to comparison of microwave frequency and optical frequency to accomplish optical frequency measurement

    根據國內外的情況,提出一種新的測量方法:即利用任意頻率信號之間都存在著相互相位差周期性變化的現象,根據李沙育圖形的原理,在技術上完成了射頻到微波信號之間成10 ~ 5頻率關系的比對,再根據頻率信號的共性,將此方法推廣到微波到光頻信號之間的比對,以完成對光頻的測量。
  15. We are still receiving signals from the turtle in her feeding ground until the battery in the transmitter runs out or the transmitter is detached from the turtle s carapace naturally later

    我們現時仍然接收到該綠海龜在其覓食地發出的訊號,直至傳訊器的電池耗盡或從海龜的背甲上脫落。
  16. " over the horizon " technologies - these facilitate ground - based methods of harassment ( eg the alaskan haarp project which bounces signals off the ionosphere )

    「視距外」技術-這些促進了以地面為基礎的折磨方法(例如阿拉斯加高頻活躍極光研究計劃,它反射信號到電離層) 。
  17. So we recommend that you connect any unused input terminal to vdd or vss, do not input any signals before power is turned on and ground your body, work assembly table and assembly equipment to protect against static electricity

    因此請勿將任何未用的輸入端接到vdd或vss ,不要在電源打開之前向模塊輸入任何信號,並將操作者的身體工作臺裝配臺接地,安裝設備需防止靜電。
  18. Its signal is much weaker than the back ground signals so that it hardly affects the back ground system. therefore, soct is very useful not only in raising channel efficiency, but also in building a hidden communication system for military purpose

    由於它的信號比原信號要微弱得多而不影響原信號的傳輸,因此這種技術不僅可以用於提高衛星通道的利用率,而且可以用於實現一種非常隱蔽的軍事保密通信方式。
  19. The dynamical characteristics of ground soil and structure of frequency spectrum of ground micro - tremor in fuzhou and quanzhou of fujian province are studied in this thesis. the ground microtremor signals were observed, and the signals were analyzed by fast fourier transform method ( fft ). the characteristics of structure of frequency - spectrum and response of ground soil to frequency of ground micro - tremor are revealed, and the function with frequency - dependence and frequency - selection of micro - tremor for different foundation soil strata is also researched

    本文以福建省福州市區和泉州市區場地土的動力特性和地脈動頻譜結構為研究對象,對福州市區和泉州市區等地進行了場地地脈動的測試,利用快速傅立葉變換( fft )方法對觀測到的地脈動信號進行頻譜分析,研究了地脈動頻譜結構特徵及場地土對地脈動的頻率響應的特性。
  20. Using the differentials in reception of omega signals by the airborne radiosonde and the ground station, the position of the radiosonde and hence the wind vector was determined

    在探測過程中,無線電探空儀由奧米茄站接收甚低頻信號,並轉播至京士柏地面站。
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