direct spreading 中文意思是什麼
direct spreading
解釋
直接蔓延-
Amore 2001 has successfully investigated the gakkel ridge and arctic ocean in vicinity of its geological and geophysical nature, as well as the nature of sea ice and biology in this area. the preliminary onboard petrology and bathymetry results show that the mantle beneath the gakkel ridge with low temperature has only encountered very low degree partial melting during the spreading and there is no any direct relationship between the crust nature and the spreading rate along the gakkel ridge in any simple petrologic way. mantle temperature and fracture zone density also play a major role on the crust nature, besides spreading rate
對所取得資料的初步研究表明gakkel洋中脊之下的地幔僅經受了較低程度的部分熔融，具有較低的溫度。 gakkel洋中脊處的地殼性質和巖漿活動與擴張速率之間不存在任何直接的巖石學相關性，擴張而導致的巖石圈頂部的冷卻並不是決定洋脊處地殼性質的最重要因素。地幔溫度和斷裂帶的存在與否及其密度對地殼性質具有重要的影響意義。 -
Leading by the reputation orientation, advertisement, prolocutor of stars, medium spreading. as well as lots of other ways, have become the “ potluck ” for the brand creating of many indigenous enterprises. however. with the expedition of the severe chinese marketing competition. more and more enterprises find out that it is very difficult to develop the brand image construction and communication, and finally win the competition solely by brand reputation. enterprises should recur to much more competitive media. which might effectively lead the brand image construction and communication, and this very media is channel. the marketing channel provides the platform for enterprises and consumers to contact, exchange, and communicate with each other. it services consumers the most direct brand experience, and make a decisive sense for brand image construction and communication
但是隨著中國市場競爭激烈態勢的加劇，越來越多的企業發現，單憑知名度來引導品牌形象塑造和傳播並贏得競爭已非常困難。企業必須藉助于其他更有競爭力的媒介才能更有效引導品牌形象塑造和傳播，這個媒介就是渠道。營銷渠道為企業和消費者的接觸、交換和對話提供了平臺，為消費者提供了最直接的品牌體驗，對品牌形象的塑造和傳播具有決定性的意義。 -
After establishing the model of intermediate frequency direct sequence spreading spectrum ( if dsss ) receiver, comparing and analyzing several conventional code acquisition methods, code and carrier two - dimension fast acquisition scheme based on two - dimension fft is proposed. finally, the situation for two targets is analyzed
首先在建立了中頻直擴接收機的模型之後，本文對常用的偽碼捕獲方法進行了詳細地分析和比較，然後提出了本文的基於二維傅立葉變換技術的快速捕獲方法，並且分析了兩個目標時的情況。 -
This dissertation analyses the design idea and method for the direct spreading sequence msk modulate system with an error control function. it gives the matlab simulate result and the performance analysis through the modeling process
本文闡述和分析了一個帶有差錯控制的直擴序列msk調制系統的設計原理與方法，詳細分析和推導了系統的建模過程並給出基於matlab的模擬結果與性能分析。 -
After three round consultations, the model of comprehensive assessment on flood impact was set up, which included six first rank indicators and twenty - four second rank indicators. the mean value of every indicator is regarded as its primary weight. among first rank indicators, direct casualties resulted from flood and economic loss in flood have the largest weight ( 0. 2123, 0. 1807 ) ; increases of diseases incidence and excess mortality rate have the similar weights ( 0. 1715, 0. 1745 ) ; spiritual injured and psychological effects have the least weight ( 0. 1038 ) ; the weight of epidemic focus expansion and infectious vector spreading is 0. 1572
最終的綜合評價指標體系包含洪災導致的直接傷亡、災後患病情況的變化、災后死亡情況的變化、災后精神和心理狀況的變化、災后疫源地和病原媒介的變化、洪災導致的經濟損失6個一級指標和24個二級指標，一級指標中直接傷亡和災后的經濟損失的權重最大，分別為0 . 2123和0 . 1807 ，患病情況的變化和死亡變化兩方面的權重相差較小，分別為0 . 1715和0 . 1745 ，災后精神和心理狀況的變化的權重最小為0 . 1572 。 -
The problem of signal processing for direct - sequence code - division - multiple - access ( ds - cdma ) signal over multipath frequency - selective mobile channels is considered. a new blind receiver is proposed. without the knowledge of the multiple - access interference users spreading code and the channel characteristics, the receiver achieves blind detection with prior knowledge of only the desired users spreading code and approximate timing. by using reduced rank adaptive decorrelating filter and adaptive multipath combiner which is based on decision - directed algorithm, the receiver gets the ability to combat both fading and the near - far effect at low cost. simulation results demonstrate that the proposed receiver offers high performance
本文研究多徑頻率選擇性衰落通道下直接序列擴頻碼分多址（ ds - cdma ）信號的處理問題，提出了一種新型的盲接收機.該接收機不需預知多址干擾用戶的擴頻碼，不需預知通道參數，只需已知期望用戶的擴頻碼和粗略的定時，就可以完成用戶的盲檢測.同時，該接收機通過降維自適應去相關濾波和基於判決指導的自適應多徑合併，來獲得低成本和良好的抗衰落、抗遠近效應性能.模擬結果驗證了本文提出的接收機的優良性能 -
Concerning with the direct sequence ( ds ) cdma system, this thesis focuses on several issues related to orthogonal spreading sequences and amc, including correlation properties of orthogonal variable - length spreading sequences and their effects on ds cdma system performance, performance of multicarrier ( mc ) ds cdma system with generalized orthogonal ( go ) sequences, adaptive modulation with throughput maximization, performance of adaptive turbo - qam coded modulation in generalized fading channel and performance of amc in wcdma high speed downlink packet access ( hsdpa )
針對直接序列碼分多址（ dscdma ）系統，本文主要研究了正交擴頻序列和自適應調制編碼若干問題，包括正交變長擴頻序列的相關性及其對dscdma系統性能的影響、採用廣義正交（ go ）序列的多載波直接序列碼分多址（ mcdscdma ）系統性能、吞吐量最大化自適應調制、自適應turbo - qam編碼調制在廣義衰落通道中的性能，以及wcdma下行分組接入（ hsdpa ）中自適應調制與編碼性能五個方面。
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