互相關系數 的英文怎麼說
中文拼音 [hùxiāngguānxìshǔ]
互相關系數
英文
cross correlation coefficient-
This paper reviews and introduces the major research progress on spatial tessellation, spatial relation, multi - dimensional data modeling, spatio - temporal and dynamic data modeling, multi - scale data modeling
摘要以地理空間實體及其相互間關系的抽象、表達與組織為主線，從三維、時空、尺度等角度出發，進行了多維動態空間數據模型研究。( c ) propose the scheme to implementing the coder and deoder of optical time - spreading / frequency - hopping, by assigning two orthogonal codes for one user and using these two codes to encoding 1 and 0 respectively, differential detection can be adopted. not only improves system performances in ber, but also resists the interference such as mai, and does n ' t need any control devices to evaluate the optimum decisive threshold
通過給每個用戶指定互相關為0的兩個地址碼分別發送1和0信號以及在接收端採用差分檢測技術，避免了ook （開關鍵控）光通信系統中0不發送光脈沖和ook常規檢測方式下最佳判決門限必須根椐用戶數等外界環境而改變，從而提高了系統性能和降低了系統的復雜度。There are significant statistical correlations among temporal coefficients of spatial patterns of dekad precipitation. lag correlations and cross correlations can be viewed as one clue to mid - long term weather forecast
旬降水量空間型時間系數間存在顯莢的統計相關，將時問系數間的1相關和互相關作為中長則天氣預報的一干！On one hand, it gets to the conclusion that china ’ s foreign direct investment has mutually complementary relationship with foreign trade, based on the statistical analysis on the outflow of foreign direct investment and the volume of international trade, combined with the qualitative analysis on the trade effect to investing country
一方面，通過對對外直接投資流出量與對外貿易進出口額的數據作定量的統計分析，並輔助相關的母國對外投資的貿易效應分析，得出我國對外直接投資與對外貿易之間存在互補關系，即對外直接投資促進了對外貿易的增加。If the two signals are random, the cross-correlation is zero.
倘若兩個信號都是隨機的，則互相關系數為零。Accessing the data, the knowledge, the model and the relative parameter from database, knowledge - base, model - base and the interface, the expert system automatically infers and calculates the maximum depth and length of stilling basin the bantai hydraulic project and the xiangyanghe dam have been given as the example
以班臺閘和向陽河壩為工程實例，根據數據庫、知識庫、模型庫中的相關數據、知識經驗、模型，以及人機交互界面的相關參數，進行分析推理計算，求出最大消力池深和池長，對系統的相關功能模塊進行的驗證。This distributed system was consisted of three layers. the first layer is data acquisition and control circuit units which are primarily composed of single - chip microcomputers, cplds and designed according to the standards of nim modules so as to attain the acquisition and control of the data of multi - parameters and to make this kind of nim to be able to communicate directly with upper pc computers. the second one is pc computers which are used to respond and control the multi units of data acquisition and control
這種分散式系統分為三級，第一級數據採集控制單元以單片微機和cpld （ complexprogrammablelogicdevice ）器件為主，按照nim插件的機械和電氣標準設計，完成多參數數據的採集控制，解決了傳統nim系統不能和計算機互連的問題；第二級是pc微機，負責協調和控制多個數據採集控制單元；一、二級構成一個獨立的子系統，可以完成多參數及相關量數據的採集和處理。In the first session the fans vibration on - line monitoring system is realized with vc language, also compile auto power spectrum density function, cross power spectrum density function, autocorrelation function and cross correlation function etc spectral analysis function to carry through simple offline fault diagnosis
首先用穩定性強、擴展性好的vc + +語言開發了通風機振動在線監測系統，並編寫了自功率譜密度函數、互功率譜密度函數、自相關函數和互相關函數等頻譜分析函數來進行簡單的離線故障診斷。On the basement of the quantitative analysis about the relationship between the rural industrialization and urbanization in gansu, the following conclusions have been drew in this paper ( 1 ) the development of town and township enterprises is the important driving force during the process of gansu ' s rural urbanization, and this point has been drew easily from the regression results showing that there is strong correlation ship between indexes about the urbanization process and ones about the development of town and township enterprises ; ( 2 ) nowadays the town and township enterprises ' driving on the rural urbanization of gansu ' s counties and restricts has seemed quite limited, because in the correlate analysis with the datum in 2003, the coefficient between the employment number of town and township enterprises and the urbanization level is only 0. 058 ; ( 3 ) there is no well mutually driving relationships between the rural industrialization and urbanization in gansu greatly because of the many existing problems such as too small business scale, capital shortage, low technique level, low quality of employees, imperfects of system etc. in the development of the town and township enterprises and the many deflects such as small scale, scattered distribution, signalized function etc. in the development of small towns
在對甘肅農村工業化和農村城鎮化的關系進行定量分析的基礎上，得出結論： （ 1 ）鄉鎮企業發展是甘肅農村城鎮化的重要推動力（回歸結果顯示城鎮化進程的指標和大部分鄉鎮企業發展的指標間存在著很強的相關關系） ； （ 2 ）現階段鄉鎮企業在全省各縣區城鎮化進程中的作用已相對局限（在對2003年截面數據的相關分析中鄉鎮企業就業人數和城鎮化水平之間的相關關系極其微弱，相關系數為0 . 058 ） ； （ 3 ）甘肅鄉鎮企業發展中存在的諸如經營規模過小、資金短缺、技術層次低、從業人員素質低以及體制制度方面存在缺陷等一系列問題和小城鎮發展中存在的規模過小、建設檔次低、布局分散、職能趨同性強等問題致使鄉鎮企業發展和農村城鎮化發展在現階段沒有能很好地相互推動和促進。Secondly, we apply tk operator to the cross - correlation of received signal code and pn code to separate the multi - paths. it comes to a conclusion that tk operator can separate the multi - paths within less than the chip period accurately of spread - spectrum system with space - modulation by simulation. at last, we apply this algorithm to the practical signal collected by gps tap, and from the result we can drop a conclusion the tk algorithm is practical
本文首先闡述了時空調制擴頻信號原理以及在多徑干擾下時空調制接收機的性能和teager - kaiser接收機的原理;接著對時空調制擴頻系統的解調信號與偽碼的互相關函數採用tk接收機進行多徑分離，模擬結果表明， tk接收機對時延在一個碼片內的時空調制擴頻通信多徑信號有很好的分離效果;最後用數據採集器對一個gps信號進行接收和多徑的估計，驗證了該演算法在實際的運用中對多徑的擴頻信號有很好的分離效果。Based on those, the concept of chilling process was put forward according to the lowest biologic temperature of main tropic and south sub tropic crop and fruit in guangdong and the low temperature ( environment temperature 5. 0 ) which is harmful to those crop and fruit. with the lowest air temperature ( the daily lowest air temperature ) x1, the lasting days of low temperature x2 and an integrative physical element - - negative accumulated temperature x3 in which the effect of the intense and lasting days of low temperature were considered, the correlation coefficient of those indexes were calculated and analyzed, and the results showed that there are apparent linear correlations among them
在此基礎上，以廣東主要熱帶南亞熱帶作物的生物學下限溫度為依據，從這些作物受寒害的起點溫度（環境溫度5 . 0 ）出發，提出了寒害過程的概念，並用寒害過程低溫的強度（逐日最低氣溫） x _ 1 、低溫的持續時間（天數） x _ 2及考慮了低溫的強度和持續時間綜合作用的物理量負積溫x _ 3這3個指標來描述寒害的強度，研究了廣東歷年冬季寒害的變化，分析了這3個指標間的相關系數，結果表明它們之間互相存在顯著的相關關系。Among all the elements, commodities index which can reveal the holistic change is principally investigated here. nowadays empirical analysis fails to show the clear correlation and granger causality between international primary goods ’ price and cpi of our country
二者與cpi之間即期相關系數達到了0 . 7 ，滯後半年的相關系數也都在0 . 5以上，同時二者與cpi之間互為granger因果關系。Firstly we introduced research background and theory foundation. data characteristics of half structure and xml and cscw are simply introduced ; very important critical technology of cooperation work : transform between xml and the relational database is researched deeply secondly. the emphatic questions such as principle and thought are expatiated, and a general transformation rule and realization such as the data abstract, integration and transform are put forward ; as well as we introduced data binding in java environment, and put forward a datachange model which works in cooperation work
本文首先介紹研究的背景和理論基礎，對xml 、 cscw技術和web的半結構化數據特點做了簡單介紹；接著對數據庫協同工作中的關鍵技術： xml與關系數據庫之間的相互轉換進行了深入的研究，闡述了轉換過程中的原理、思想精髓等重點問題，提出了通用的轉換規則，以及在web數據庫中數據的提取、集成、轉換等實現技術；同時還介紹了在java環境下數據綁定的過程，並提出一個協同數據庫管理系統的模型datachange 。It is useful for selecting reasonable system parameters through it. for the data process in dial system, we discussed the combined effects of temporal autocorrelation and lasers cross correlation and signal averaging
對于dial系統中的數據處理，本文著重討論了信號平均技術和激光器回波信號時域自相關以及激光器互相關對co2dial系統測量靈敏度的影響。Cdma has become the main technology of the third generation mobiletelecommunication. many users in cdma system are distinguished by differentspread sequences and have the same time chip and frequency unlike in theconventional tdma system or fdma system. but the practical spread sequences cannot reach the ideal condition, the correlation function equals zero, so that it will causethe multiple access interference ( mai ) when lots of people are communicating. multi - user detection ( mud ) makes joint detection on the received signals by makingfull use of the information of all users ’, which relaxes mai and increases the capacityof system
Cdma技術已經成為第三代移動通信系統中的主流技術，它與傳統的fdma 、 tdma不同，在cdma系統中多個用戶均佔用同一時隙、同一頻隙，所不同的是選取的地址碼不同，而實際選用的地址碼間的互相關函數又不可能全部達到理想狀態的全為零，因而造成了多個用戶同時通信時，必然要產生多址干擾。Average crosscorrelation coefficient
平均互相關系數Then all traces are compared with the standard one, and stacked after erasing the recorded traces with low relative coefficient
再將各道與標準道互相關，並把相關系數低的記錄段剔除后進行疊加。In the third chapter, the properties of the bipolar sequence are analyzed firstly. the auto - correlation, the cross - correlation and the accommodation of simultaneous users under given bit error rate between the bipolar codes and unipolar codes are compared. the conclusion is that bipolar codes have better auto - correlation and cross - correlation, and the system that uses bipolar codes can accommodate more users and simultaneous users
通過對其性質的總結，自相關曲線、互相關曲線的對比，以及在規定誤碼率條件下，使用雙極性序列的系統與使用光正交碼的系統之間的同時用戶數比較，得出以下結論，雙極性系統較之單極性系統具有更好的自相關、互相關函數，碼字容量更大，使用雙極性序列的ocdma系統在規定誤碼率條件下的同時用戶數比使用單極性序列的系統要多得多，雙極性序列完全適用於ocdma系統。Compute the cross correlation coefficient [ 17 ] between ecg signal and selected wavelet filter
請問大俠，怎麼求給定信號與小波濾波器之間的互相關系數？The coefficients of cross - correlation of several important parameters are calculated according to statistical data
根據文獻資料上的土性參數統計值，計算若干參數的互相關系數。分享友人