track signal 中文意思是什麼

track signal 解釋
磁跡信號
  • track : vt 用纖拉船。vi 拉纖行駛。n age 拉纖。n er 拉纖的人。n 1 軌跡，輪跡，航跡，痕跡；〈pl 〉足跡。2 ...
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  1. The results of experiment tell it is an effective method of share current. a strategy of synchronization control, which combines competition coequality and priority, is mentioned in the paper and uses digital phase - lock loop to track synchronization signal

    在同步控制上，應用了「優先與搶占」的方式產生同步信號，純硬體實現，簡單可靠；使用了成熟的數字鎖相環來跟蹤同步信號。
  2. Marshals have several roles to fill, including observing the spectators to ensure they do not endanger themselves or the competitors, acting as fire wardens, helping to remove stranded cars / drivers from the track and using waving flags to signal the condition of the track to drivers

    賽道工作人員有許多職責，如監督觀眾以防止他們受傷或對比賽車手造成妨礙、擔當協助擱淺車輛/車手移出賽道的防火員，以及揮動旗幟向車手們提示賽道狀況。
  3. Study of modulation signal ' s parameters in resonance type jointless shifting frequency track circuit

    諧振式無絕緣移頻軌道電路調制信號參數研究
  4. The synthetic maintenance corporation on the principle of " one job with multi - duty " and reducing the fixed number of employees and departments, is in charge of regular maintenance of track, signal, bridge, buildings and tunnel structures, intermediate and overhaul repair of signal, buildings and structures, supply of water and electricity

    固定設備的其他養護維修由綜合養護維修公司負責，按照維修中心模式統一管理固定設備的養護維修，按照一職多能、壓縮機構、減少定員的原則。公司不設置線路、橋隧和路基等大修單位，需要時可以對外招標承包完成。
  5. To solve this contradiction we introduce the polarization track restriction and calculate the biggest scr ( ratio of signal to clutter ) of coherently and incoherently reflected waves

    為了解決這一矛盾引入了極化軌道約束條件，計算了在極化軌道約束下相干情況和非相干情況下共極化通道最大接收功率與極化狀態的關系。
  6. Laser terminal guided projectile, a kind of artillery precisely guided shell, which combines laser technology with electronics and flying control technologies, can guide the shell by laser signal in the terminal stage of the trajectory to track and attack the point target accurately

    激光末制導炮彈是炮兵用於遠戰的一種精確制導炮彈。它集激光技術、電子技術、飛行控制技術於一體，在飛行彈道末段依靠激光信號引導，能準確地跟蹤並攻擊點狀目標。
  7. Industrial frequency traction current may interference fsk signal. the electric parameters of track circuit must be measured periodically to make sure whether track circuits and signal equipment run normally and to avoid accident

    定期檢測軌道電路的電壓、頻率等參數，以判斷軌道電路及其信號設備是否處于最佳工作狀態，可以及時消除隱患，確保鐵路安全行車。
  8. Beginning this month ( august ), the update frequency of tropical cyclone track on the website will increase from every three hours to every hour whenever the tropical cyclone warning signal no. 3 or above is in force. this is to make it easier for members of the public to obtain updated information on the intensity and movement of the tropical cyclone ( see figure 1 for a sample of the hourly tropical cyclone track )

    為了讓本港市民更容易掌握熱帶氣旋的最新強度及移動情況，天文臺由今年八月開始，當三號或以上的熱帶氣旋警告信號生效時，增加網頁內熱帶氣旋路徑圖的更新次數，從以往的每三小時更新一次，加密至每小時一次（每小時熱帶氣旋路徑圖樣本見附圖一） 。
  9. Beginning this month august, the update frequency of tropical cyclone track on the website will increase from every three hours to every hour whenever the tropical cyclone warning signal no. 3 or above is in force. this is to make it easier for members of the public to obtain updated information on the intensity and movement of the tropical cyclone see figure 1 for a sample of the hourly tropical cyclone track

    為了讓本港市民更容易掌握熱帶氣旋的最新強度及移動情況，天文臺由今年八月開始，當三號或以上的熱帶氣旋警告信號生效時，增加網頁內熱帶氣旋路徑圖的更新次數，從以往的每三小時更新一次，加密至每小時一次每小時熱帶氣旋路徑圖樣本見附圖一。
  10. The railway infrastructure corporation, responsible for the fixed facility maintenance and operation which include buildings and structures maintenance, water and electricity supply, signal repair and track maintenance, is composed of mechanized track maintenance corporation and synthetic maintenance corporation

    固定設施運營維修由機械化維修公司和固定設施綜合維修公司組成，集房建、信號、水電和線路設備養護維修於一體。線路設備綜合維修和檢查檢測以機械化為主，由機械化維修公司負責。
  11. 4. the dissertation studies in - depth the multi - aperture sar mtdi based on along - track interferometry ( ati ). it presents and describes the detecting processing in sar image domain using double apertures and analyzes the influence of all kinds of factors including ground clutter, noise, signal - to - clutter, range velocity, multi - look processing and etc on the detection performance

    4 、深入研究了基於沿跡干涉釁1 ）技術的多孔徑sar系統地面動目標檢測和成像方法，給出了採用ati方法對兩幅sar復圖像進行慢速目標檢測的完整過程，詳細分析了各種因素如雜波、噪聲、目標信雜比、目標速度及多視處理等對檢測性能的影響，並通過大量的模擬給予驗證。
  12. When a man comes into the oil storehouse from outside through storehouse ' s edge, the leak cable will alarm. while accepting the alarming signal, the computer immediately controls vidicon to aim at the alarming field and go along with the inspection and recognition of active target. after finding the target, it goes into the state of automatic track

    當有人從外面跨過庫區邊界進入油庫區時，泄露電纜檢測到信號並報警，計算機接到報警信號后，立即控制攝像機對準報警地段進行攝像（即圖像採集） ，並進行運動目標的檢測與識別，當檢測到運動目標后，就進入自動跟蹤狀態，由計算機根據目標的運動方向，自動控制攝像機的轉動，將運動目標鎖定在視野中進行自動跟蹤。
  13. A single track system in 1910, it was completely electrified and double - tracked by 1983. the railway is undergoing signal improvement and train refurbishment works

    九鐵在一九一零年投入服務時是一個單軌系統，在一九八三年，已改善成為一個完全電氣化的雙軌鐵路系統。
  14. Pile ng examination of the system based on the latest promulgated by the ministry of public security, " motor vehicle drivers license application and management " ( decree 71 ), the two examination subjects ( zhuangkao ), computer images using real - time detection technology and electronic infrared optical interface detection technology, i combine the companies creating two - dimensional moving object identification and tracking software through acquisition of vehicles running state examination pile pole, the signal line, after computer processing, analysis and judgment, the actual realization of the computer monitor screen on the basis of the examination process real - time simulation, tracking examination candidates track and record car line, is set admission, examination results published combines the real modernization zhuangkao tools

    本系統依據公安部最新頒布的《機動車駕駛證申領及管理規定》 （ 71號令）中有關科目二考試（樁考）的規定，採用微機圖象實時檢測處理技術及電子紅外線光界面檢測技術，結合我公司獨創的二維移動物體識別跟蹤軟體，通過採集考試車輛運行狀態、樁桿、庫線等信號，經過微機處理、分析判斷，真正實現了在微機監視屏上根據考試過程實時模擬、跟蹤考生考車軌跡並記錄路線，是集錄取、考試、發表成績為一體的真正的現代化樁考工具。
  15. In practice, it ’ s very hard to find any ideal scatter points to track, so this thesis focuses on the motion compensation algorithm base on motion parameters estimation, which is used in r - d fft imaging algorithm and verified by simulation. work of this thesis contains : first analyze the signal - processing model of isar system in detail, and establish a 3 - dimensional mathematical scattering model of moving target. then some improvements are made on existing compensation algorithm, to get a higher image quality and reduce compute burden

    本論文有以下幾點創新: 1 .在距離向的補償（包絡對齊）方面，採用基準相關法代替相鄰相關法或積累相關法，一定程度上解決了可能出現的包絡漂移和包絡突跳現象;根據目標運動軌跡特點，採用二次曲線擬合的方法，將包絡對齊時的局部誤差轉化為全局的誤差，以便實現較優的整體對齊效果。
  16. The technique core of the 3 - d outline tracking scan lies in the adoption of several photoelectric sensors, laser measuring sensors and super voice wave measuring sensors to carry on probing, the single chip makes the photoelectric signal examined as the control basis, and controls the step motor to drive measurement machines and probing sensors to make outline tracking and scans movement along high and breadth direction of the vehicle, and record its outline track, and the data measured is delivered to the computer, finally, acquires the size of the vehicle checked through the place of computer data processing

    三維輪廓跟蹤掃描技術的核心在於採用多套光電傳感器、激光測距傳感器、超聲波測距傳感器進行探測，單片機把檢測到的光電信號作為控制依據，控制步進電機驅動測量機及探測傳感器在車長、車高和車寬方向上作輪廓跟蹤掃描進給運動，記錄其輪廓軌跡，並把測得的數據傳送到上位機，經上位機數據處理獲得被檢車輛的特徵尺寸。
  17. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面： 1 、針對頻率選擇性衰落通道：結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法，與傳統方法相比，該方法計算量更小，收斂速度更快，性能更優，且對系統階次的過確定表現穩健，具有實際均衡應用價值； 2 、針對時間選擇性衰落通道：提出一種基於迫零均衡的時間選擇性通道均衡方法，演算法結構簡單； 3 、針對時變色散通道：利用瞬態均值曲線提取通道時變信息，對之ar建模，利用卡爾曼濾波器跟蹤時變通道抽頭變化，可以快速跟蹤通道變化；基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法，提出了新的單輸入多輸出色散時變通道均衡與識別演算法，同樣具有對通道階次過確定保持穩健的優點；結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法；研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題，給出一種時變系統處理模型。
  18. At the last we program the parameter detecting methods for frequency - shift track signal with c language and assembly language base on code composer studio of dsp. then we realize it on the dsp chip of tms320f2812. experiments shows that it can satisfy the demand of real time and precision

    最後在dsp的集成開發環境ccs （ codecomposerstudio ）上採用c語言和匯編語言混合編寫移頻軌道信號的參數檢測演算法，並將該演算法移植到dsp晶元（ tms320f2812 ）上實現，測試結果表明上述演算法能夠滿足實時性和精度的要求。
  19. On the basis of the former research works, we present the detecting method as follows : for the narrow band characteristic of the track signal we use under - sampling instead of nyquist sampling to reduce the sampling rate. as to the carrier frequency, the spectrum of the 18 - information frequency - shift track signal has two peaks, then the carrier frequency is the average of the two peak frequency, to um - 71 jointless track signal, it has only one peak, then the carrier frequency is the peak frequency

    針對移頻軌道信號的窄帶特性提出了使用欠采樣技術代替奈奎斯特采樣的方法，以降低信號的采樣頻率;國產18信息移頻軌道信號頻譜具有雙峰，雙峰頻率平均值就是信號的載頻頻率，而um - 71無絕緣軌道信號頻譜單峰，峰值頻率即為信號的載頻頻率。
  20. Since the energy of 18 - information track signal is concentrated around upper frequency and lower frequency, the frequency of the modulation signal is low, and it must have high resolution, we use zfft to detect it. as the energy of um - 71 signal is more concentrated, we use extreme value method to detect the frequency of modulation signal in frequency domain, which can satisfy the frequency resolution

    針對18信息軌道信號能量集中在上、下邊頻附近且低頻信息頻率低的情況，提出了用zoom - fft （ zoom指頻率擴展或細化，簡稱zfft ）演算法進行信號的局部放大檢測低頻信息，以提高信號的頻率解析度，而um - 71軌道信號能量集中在載頻附近，在頻域上採用極值法檢測低頻信息，即可滿足信號頻率解析度的要求。
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