symbol data 中文意思是什麼
symbol data
解釋
符號數據-
Symbol and code name for openhole logging data processing
裸眼井測井數據處理符號與代號 -
The article points out the importance and necessity of the information - security from its actuality in our country. the resources in the information system, for instance, hardware, software, data, document, operator, meterial and so on, are evaluated and gived safety grade firstly. and then, it analyses the menace including the nonauthorized access, the information leak, the refused sevice, the internal objection which the system will take. the following are the corresponding control police : confirm the users " rights and duties, including the mode of using account, the limit of accessing resource, the application of password, the building of backup ; confirm the administrators " right and duties, including physical safety, system configuration, account configuration and usufruct, password management, audit and control, backup and individual intimity ; run - of - mill measure of security defence, including access control, symbol and identification, integrality control, password technique, firewall system, audit and resumption, safety of operating system, safety of database system, defence of computers " virus and resisting - deny protocol. in the end, the article offers the strategies of disposing the safety - accident and analyse after ithow. to report it, how to solve it in phase, and how to avoid it happening again. in a word, the article presents a holistic resolvent about keeping away the information system ' s security, and supplies a essential frame for its configuration, management and application
然後，對系統可能受到的威脅，包括非授權訪問、信息泄漏、拒絕服務和內部缺陷等進行分析，並提出了相應的控制策略：確定用戶的權力和責任，包括帳戶使用方式、資源訪問權限、口令應用以及建立備份等；確定系統管理員的權力和責任，包括物理安全、系統配置、帳戶設置及使用權限、口令管理、審計和監控、備份以及個人隱私等方面；一般性的安全防護措施：存取控制、標識和認證、完整性控制、密碼技術、防火墻系統、審計和恢復、操作系統安全、數據庫系統安全、計算機病毒防護和抗抵賴協議等。最後，對事故處理和事後分析提供策略，如何報告安全事故，如何協調解決安全事故，如何避免安全事故再次發生。總之，本文對信息系統安全防範工作給出一個整體的解決方案，為其在配置、管理和應用方面提供了基本的框架。 -
Second, it presents the project design of an astronauts ’ kinetic measurement system that can precisely measure the forces and moments of key points on motorial person. it presents a principle and flow of the project design of an astronauts ’ kinetic measurement system. and it particularly discusses the demarcate of camera system, the gathering and storage of experiment pictures, pick - up of the symbol data, the parameter calculating method of target movement, and the general design of assistant equipment
然後給出航天員作用力測量實驗系統的設計方案，該系統能夠克服重力影響，較精確地得出運動時人體各關鍵點產生的力和力矩;給出了航天員運動參數測量實驗系統的原理及流程，並詳細論述了攝像系統標定，實驗圖像的採集與存儲，標志點數據的提取及目標運動參數解算的方法;給出了輔助設備的概要設計。 -
End - data symbol
數據終端符號 -
For wireless communications, direct sequence code division multiple access ( ds - cdma ) techniques have received a great deal of attention due to the expectation of capacity increase, interference rejection capability, security, and so on. in a high data rate application such as multimedia services, however, the capacity of ds - cdma systems is limited by both the inter - chip, or inter - symbol interference
Cdma技術以其高抗干擾能力、高容量、高保密性等技術優勢在第三代移動通信系統中被廣泛應用，然而在高速數據業務中，嚴重的碼間干擾和符號間干擾會導致系統性能明顯下降。 -
But the frequent use of training sequence is certainly a waste of channel bandwidth. research shows that with the prior knowledge of only the signature waveform and timing of the user of interest, blind adaptive multiuser detector can effectively detect data symbol of the desired user without training data sequence for every active user
在傳統多用戶檢測技術基礎上，自適應多用戶檢測利用訓練序列在僅知道期望用戶地址pn碼及其定時信息條件下就可以進行檢測，不足的就是訓練序列佔用了額外的頻率資源。 -
Reducing the data rate by one - half will double the duration of each symbol interval
將數據率減少一半，能使每個符號間隔的持續時間延長一倍 -
Transmitting the data half as fast for given bandwidth will double the duration of each symbol interval
在給定帶寬條件下，將數據傳輸速度減慢一半，就能使每一個符號間隔的持續時間延長一倍 -
On data sending strategy, this paper this paper introduce a method for sending object orderly, and sending symbol in object disorderly. this method can decrease memory usage and promote receiving efficiency
在數據組織策略上，本文提出了在object上數據按序發送，而在object內所有symbol打亂秩序發送的策略，減少了對主機內存的佔用，提高了接收效率。 -
The logo serves as a corporate symbol of the department in communication with data users, survey respondents and the general public, so that the department can be immediately recognized
這徽號是本處的象徵，讓數據使用者、統計調查的被訪者和市民更容易識別。 -
With function module design method, the system interface design is completed ; by application of network function, the data is communicated to main - computer in order to retroactively supervisor product quality and to monitor local manufacture. through inspection of response of plc, the problems of dada efficacy and malfunction alarm in icc - plc communication are solved ; with adding symbol - bit, the exact conversion of receiving and sending data is realized
通過採用功能模塊設計的方法，完成系統界面設計;運用網路功能，將現場的有用數據上傳到信息中心的主計算機，以便產品質量的追溯管理，同時通過信息中心的主計算機也可以實時掌握生產現場的情況，實現輻照小車運行的動態監視，從而實現生產的自動化管理;通過檢測plc的應答信息，解決工控機與plc之間通信的數據效驗和故障報警難點;通過採取加標志位的辦法，實現數據收發的準確轉換。 -
In the course of the database design, after the design of space database structure, code, special symbol and the analysis of attribute data structure, using the database of maplnfo and access to build up and manage spatial and attribute data
在數據庫設計中通過對空間數據庫的結構設計、代碼設計、專題符號設計以及屬性數據結構分析等的基礎上，利用mapinfo4 0自帶的數據庫和access數據庫建立和管理本系統的空間數據和屬性數據。 -
Semantic analyzing is the third part, and it introduces the semantic data structure i designed in detail, i. e., symbol form and the so - called key semantic data structure. also it introduces the way of error handling
第三階段為語義處理階段，在這一階段詳細闡述了本文所設計的語義數據結構：符號表和核心語義數據結構，並對差錯處理的方法進行了介紹。 -
An significant symbol has been used to determine the technique of 3 - d discontinuities network modeling of rock mass is good or not, which is to check whether the model can reappear the reality situation of rock mass or not, in order to make the 3 - d network model to meet the need of the actual rock engineering, the methods to verify the result of the modeling are required, one of the method to be used is to compare the figures between the section of the numerical model and the sampling window of in - situ model, the second method to be used is verify the data set between the numerical model and field data, only if the verification obtained a good precision, then the model can be considered as a efficiency model, and it can be applied into the actual rock engineering
摘要巖體隨機不連續面三維網路模擬技術成熟與否的一個重要標志就是最終的網路模型是否能夠較真實地再現巖體的實際情況，為了使三維網路模型的結果能夠真正地應用於實際工程，就必須對模擬的結果進行必要的檢驗，檢驗的辦法就是將模擬出的模型剖面圖形與原型測量窗口的圖形進行圖形對比，或者將原型的觀測數據與模型的測試數據進行數據對比，當這種檢驗達到精度時，模擬出的模型為有效模型，可以投入工程實際應用。 -
Contributions in this paper mainly sh ow four points : 1 the structure characteristic of the received ds - cdma signal is analyzed in the presence of multi - path slow fading effect case for wireless mobile communication. according to this characteristic, four data - selected schemes based on chip - matched filter are presented from the perspective of energy and structure of signal. and the impact of these schemes on multiple - access interference ( mai ) and inter - symbol interference ( isi ) is analyzed
本文的主要貢獻在於四個方面： 1 、針對無線移動通信系統中廣泛存在多徑慢衰落效應的情況，分析了ds - cdma系統中接收信號本身的結構特徵，根據這個特徵，在匹配濾波的基礎上，從能量與信號結構的角度提出了四種不同的數據採用方案，並分析了不同數據方案對多址干擾與碼間干擾的影響。 -
Adaptive modulation can also control quality of service according to transmitted information type and greatly increase capacity of system. the data frames in adaptive modulation communication system must be redesigned. because the sender must tell the receiver the current modulation mode by some bits in the data frame and the receiver must gain the current channel condition from the data frame in order to control its modulation mode and symbol rate
因為發送方須通過數據幀中的某些比特來通知接收方當前的調制方式和符號速率；同樣，接收方也須從數據幀中某個域的比特流來獲得當前的通道條件信息，從而去控制其調制方式及符號速率。 -
4 based on the theories puted forward above and the design goal of the symbol editor, this paper introduces a series of designs and implements such as the data model of symbol objects, the structure of system
4 、在上述理論的基礎上，以符號編輯器的設計目標為依據，詳細敘述了在開發編輯器的過程中，符號對象數據模型、系統的框架結構等方面的設計與實現。 -
For symbol synchronization, a filtering and squaring algorithm of estimating the timing error has been introduced, and a method to improve the accuracy of estimated data has been presented, then two signal interpolation filter have been analyzed, one is fir interpolation filter, another is cubic interpolation filter
對于全數字接收機中符號定時誤差的恢復，先介紹了一種濾波平方后求符號定時誤差估值的演算法以及一種提高該演算法估值性能的改進方法，接著介紹了糾正定時誤差的fir插值濾波器和立方插值濾波器。 -
Establishes layer information symbol for exporting data in ug. through layering and arranging data with dxf of ug, entire model information can be written into sheet - forming visual modeling module
建立ug中數據導出的圖層信息標志，結合ug自帶的dxf數據文件通過對數據進行按選擇集分類、排序等處理可以將整個模型信息一次寫入sheet - forming可視化建模工具。 -
Chapter 3 treats the principle of the best tuning synchronization loop, and the realization of the data - aided timing synchronization loop. together with the characterization of band - limited signals without biter symbol interference and the one of atsc - vsb signals, the chapter proposes a scheme for implementing timing synchronization loop used in hdtv
第三章首先論述了最佳位同步環的原理，以及數據輔助位同步環的實現，並結合無碼間干擾的基帶傳輸特性及atsc - vsb的特點，提出了hdtv中位同步的實現方案。
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