搜索周期 的英文怎麼說

中文拼音 [sōusuǒzhōuqī]
搜索周期 英文
search cycle
  • 搜 : 動詞1. （尋找） collect; gather2. （搜查） search; ransack
  • 索 : Ⅰ名詞1 （大繩子; 大鏈子） a large rope 2 （姓氏） a surname Ⅱ動詞1 （搜尋; 尋找） search 2 （要; ...
  • 周 : Ⅰ名詞1 （圈子; 周圍） circumference; periphery; circuit 2 （星期） week 3 [電學] （周波的簡稱） c...
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  • 搜索 : 1 （仔細尋找） search for; ferret about; hunt for; scout around 2 [電子學] hunting; scan; [控] in...
  1. Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground

    針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。
  2. Federal agents expect to be at this detroit - area horse farm for several weeks to search for clues to jimmy hoffa ' s disappearance. the former teamsters leader vanished in 1975

    聯邦偵探將在底特律地區馬場附近搜尋數周以期發現吉米?哈法失蹤案的線索。這位前卡車司機工會領導人於1975年突然消失。
  3. The paper ’ s main works are as follow : ( 1 ) several methods of getting pitch period are researched in details. according to the real - time demand for the systems, the methods for pitch searching are simplified as follow : after searching the peak value point every third point within pitch range, search the peak value point every point near the current peak value point

    （ 1 ）研究了基音周期的求取方法，並根據系統的實時要求，將逐點搜索基音周期的方法簡化為粗細法，即在基音周期范圍內隔點搜索相關函數最大峰值點，然後在此時得到的最大峰值點附近繼續搜索，將最後得到的峰值點作為基音周期值。
  4. Optimal periodic control with the lowest operational cost by limiting total substrate discharge mass was studied. through adding new state variable and using supplement functions, the problem with restriction conditions was converted into nonrestriction problem. in addition, the dynamic searching method of optimal step coefficient was developed to modify the conventional gradient method, consequently the calculation problem of the multivariable optimal periodic control was able to be resolved better. it was found that the operational costs of optimal control under various initial states are distinctly different. a new concept of optimal control under optimal initial state was presented. it is pointed out emphatically that to the treatment system without optimal control condition, the suboptimal control with extensive practical value can be realized according to the results of optima control

    著重研究了在限制有機物排放總量時，使其運行費用最低的最優周期控制問題.通過增加新的狀態變量和用補償函數法，將本課題的有約束條件問題化為無約束條件問題，並提出了最優步長參數的動態搜索法來修改傳統的梯度法，從而較完善地解決了多變量最優周期控制的計算問題.研究中還發現了不同初始條件下最優控制所需要的運行費用也大不相同，進而提出了最優初始狀態下最優周期控制的新概念，這對保證出水質量的同時進一步降低污水處理成本來說具有更重要的意義.本文還強調指出：對于尚不具備實現最優控制條件的處理系統，可根據最優控制的研究結果實現具有廣泛實用價值的準最優控制
  5. That ' s because b2b purchases undergo much more scrutiny throughout all phases of the buying cycle - and in those phases the same person may perform multiple searches, each with a different intent

    那是因為b2b購買在購買周期的所有階段過程中經歷更多詳細調查，在那些階段內同一個人也許執行多次查尋，每次搜索的目的各不相同。
  6. The arithmetic searches for the least central offset through partition speech sub - band and confirms pitch period of the transition sound

    該演算法主要通過劃分語音子帶來搜索最小中心偏移量，較準確地確定過渡音的基音周期。
  7. In this paper ， an optimal search strategy by dividing the whole surveillance area into regions is presented so that the optimal search can be adaptively implemented in phased array radar. firstly ， the inherent relationship among average discovering time ， radar resources consumption ， search frame period and target distribution density is studied. secondly ， parameters for the region search are optimized to achieve the optimal search performance inside regions. then ， the optimal search frame period for each region is derived to minimize the average discovering time of targets ， where the constraint of radar time resource and the importance of each region are taken into account. finally ， the adaptability of this search strategy is discussed. only if the optimal parameters for each region are utilized and the beams are scheduled according to the optimal frame period under the radar time constraint ， the optimal distribution and the optimal scanning sequence of beams can be implemented adaptively. thus ， optimal search is adaptively implemented in the whole surveillance area

    本文提出一種分區搜索演算法，實現了相控陣雷達的自適應最優搜索.首先，研究了各區域平均發現一個目標消耗的雷達資源和目標被發現的平均時間同搜索幀周期以及目標強度的關系；然後，研究了在各區域採用兩步搜索演算法的最優參數設計，實現了局部區域的最優搜索；其次，在雷達時間資源有限和區域重要性加權的約束條件下，導出了使目標被發現的平均時間最小的區域最優幀周期；最後，討論了分區搜索演算法的自適應性.只要採用各區域的最優參數，按最優幀周期調度雷達波束，就可以自適應地實現使目標被發現的平均時間最短的波束的最優分佈和掃描順序，即自適應最優搜索
  8. The main function of the module is as follows : it can detect the cw signal transmitted by the active sonar, and measure the frequency of target signal and the direction of target. it can execute the tracking order sent by the display and control platform, and track the searched target, measure the target signal repetition intervals and target distance, and give the reliability of estimated distance

    該軟體的主要功能包括：對主動聲吶cw脈沖信號進行檢測，測量目標信號的中心頻率，測定目標的方位；執行顯控臺跟蹤命令，對搜索到的目標進行跟蹤，測量目標信號的重復周期，測定目標的距離，給出距離測量值的置信度。
  9. ( 3 ) towards the result of period estimation by the method called fluctuations of second order moments, we do some researches on period - searching, and find a basic method and another two universal methods

    在該方法的基礎上，增加約束條件得到了兩種通用的周期搜索方法。另外，在周期同步方面，完成了一種在周期估計的基礎上進行數據切割的周期同步方法研究。
  10. A successful, well - known project in grid computing is seti @ home, the search for extraterrestrial intelligence program, which used the idle cpu cycles of a million home pcs via screen savers to analyze radio telescope data

    網格計算的一個成功的、眾所周知的項目是seti @ home ，即搜索外星智慧的項目，它使用了大約一百萬臺家用pc在屏保時的空閑cpu周期來分析無線電天文望遠鏡的數據。
  11. Built - in database management module for vehicle information and reporting real time images searching and retrieval

    內置的數據庫管理模塊能儲存搜索及整理車輛資料，並作周期性報告
  12. The results show that the method using bias function and time - domain clipping to search pitch period can overcome shortcomings of the traditional, reduce false decision and raise the estimation precision

    研究結果表明：採用所提出的中心偏離函數和時域削波方法相結合來搜索基音周期，能夠有效地克服傳統方法的不足，降低誤判率，提高基音周期的估計精度。
  13. To promote information service ability of digital libraries, a browsing and searching personalized recommendation framework based on the use of ontology is described, where the advantages of ontology are exploited in different parts of the retrieval cycle including query - based relevance measures, semantic user preference representation and automatic update, and personalized result ranking. both the usage and information resources can be exploited to extract useful knowledge from the way users interact with a digital library. through combination and mapping between the extracted knowledge and domain ontology, semantic content retrieval between queries and documents can be utilized. furthermore, ontology - based conceptual vector of user preference can be applied in personalized recommendation feedback

    為了提高數字圖書館信息服務的能力，描述了一個基於本體的用戶瀏覽和搜索個性化推薦系統框架.該框架將本體的優點應用於檢索周期中，包括提問相關測度、語義化的用戶興趣表達和自動更新、以及個性化的檢索結果排序等.在用戶訪問數字圖書館的交互過程中，可通過本體來構造用戶提問和文檔內容的匹配機制以實現語義化的內容檢索，並可進一步使用本體來構造用戶興趣偏好的概念向量以實現面向用戶的個性化推薦反饋
  14. This is a systematic search of the sky, one location at a time, for any periodic gravitational wave coming from that location

    這是對天空的一次系統的搜索，目標是從某方向來的周期性的引力波，每次只分析一個方向。
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