頻帶數據塊 的英文怎麼說

中文拼音 [bīndàishǔjùkuāi]
頻帶數據塊 英文
bb band block
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 據 : 據Ⅰ動詞1 （占據） occupy; seize 2 （憑借; 依靠） rely on; depend on Ⅱ介詞（按照; 依據） according...
  • 塊 : 名詞（古時佩帶的玉器） penannular jade ring （worn as an ornament in ancient china）
  • 數據 : data; record; information
  1. The focus is placed on the investigation of the standard of the encoding algorithm for mpeg audio layer iii, and the analysis of the major four modules in the compression algorithm, including encoding of subband filter bank, psychoacoustics model, quantification and huffman coding, frame packing

    重點研究了mpeg音頻第層編碼的演算法標準。詳細分析了壓縮演算法中的四個主要功能模塊：子帶濾波器組編碼，心理聲學模型，比特流量化與霍夫曼編碼，幀數據流格式化。
  2. This paper researches and analyses the developments of web technology and magnetostrictive transducers from world wide region. the paper also analyes the characteristics curve of magnetostrictive transducers based on its equivalent circuit and researches the method how to make sure its syntony frequency and its electric simulation network parameters. at the same time, by using jsp technology, a magnetostrictive transducer electric simulation application is designed based on b / s three - tier system structure. the experiment data is fitted by curve fitting module. the equivalent input impedance of it with stimulate loop is separated based on the results of curve fitting and the syntony frequency and electric simulation network parameters of magnetostrictive transducers is determined by the input impedance. the method presented in this paper can determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers with a better accuracy than the testing method of syntony & anti - synton y. further more, jsp, the advanced technology at current, has been used to realize a magnetostrictive transducer web electric simulation system. the system has good human computer interface and the function of resource sharing and information publishing. the research of this paper and its achievements have some practical merits in the researchful and applied fields of magnetostrictive transducer

    用java編程語言編寫的曲線擬合模塊，對輸入的實驗數據進行了最小二乘法的曲線擬合；根據曲線擬合結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時由機械振動形成的等效輸入阻抗，並由此輸入阻抗確定磁致伸縮換能器的諧振頻率及電氣模擬網路參數。本課題提出的方法與傳統的諧振?反諧振法相比，能更準確地確定磁致伸縮換能器的諧振頻率及其電氣網路參數。同時，採用當前比較先進的web技術，實現了基於jsp的磁致伸縮換能器web電氣模擬系統，該系統具有良好的人機界面和資源共享、信息發布功能。
  3. Under windows nt and labview development environment, using the linear fit module, exponential fit module > general polynomial fit module of labview to design a method for fitting the experiment data, the results of curve fitting indicate that the purpose of general polynomial fitting is better than the rest. separating the equivalent input impedance of magnetostrictive transducers without stimulate current from input impedance of it with stimulate loop based on the results of curve fitting, and determining the syntony frequency and electric simulation network parameters of magnetostrictive transducers by this input impedance. finally, with labview network functions, realizing magnetostrictive transducer electric simulation system based on web server and discussing a scheme for this system network by datasocket. the method of this paper can more accurately determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers than the testing method of syntony & anti - syntony. at the same time, discussing virtual instrument measurement system and how to realize magnetostrictive transducer electric simulation network system by labview network functions of network virtual instrument measurement development environment

    在windowsnt系統環境和labview虛擬儀器技術開發平臺下，首次利用labview中的直線擬合模塊、指數擬合模塊以及多項式擬合模塊，設計了一種對實驗所得數據進行曲線擬合的方法，對三種擬合方法進行了比較，曲線擬合結果表明，多項式擬合方法相對于其它兩種擬合方法效果更好；根據曲線擬合的結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時機械振動形成的等效輸入阻抗，並由此輸入阻抗確定了磁致伸縮換能器的諧振頻率及其電氣模擬網路參數；最後通過labview提供的網路功能，實現了基於web服務器的磁致伸縮換能器電氣模擬虛擬儀器測試系統，並探討了通過datasocket技術實現該系統網路化的方案。
  4. So it can decrease the module ' s volume, lower its power consume, what ' s more, it make it possible for demodulation of other types signal such nbfm on the same platform

    這樣能夠在很大程度上使解調模塊體積縮小、功耗降低，而且便於擴展解調其它類型的信號，例如窄帶調頻、短波段數據傳輸等。
  5. Digital down - converter ( ddc ) is one of the key technologies used by sdr receiver. the ddc module is a data processing part, following the ad sampler. the main function of ddc is extracting narrow - band data from broad - band data which is digitalized by ad sampler, down - converting these data to base - band, and decreasing data rate as well

    Ddc數字下變頻器技術作為軟體無線電中的核心技術，是緊跟在ad采樣后的一個處理模塊，他的主要功能是從輸入的寬帶高速數字信號中提取所需的窄帶信號，將其下變頻為數字零中頻，並降低數據的速率。
  6. The technology of direct sequence spread spectrum / code division multipul access ( dsss / cdma ) are applied in the broadband code division multiplex wireless communication systems, which means transmitting data at the rate of 2. 048mbps using four e1 lines within the band of 20mhz. in this paper, the theory of the whole debice is first analysized specified for the system asic design and optimizing its performance

    寬帶碼分復用無線傳輸系統是採用直接序列擴頻/碼分多址（ dsss / cdma ）技術，在20mhz頻帶內實現四路2 . 048mbps的e1鏈路數據速率的無線傳輸。本文首先分析了整個數傳設備實現原理，針對系統asic設計和優化整機集成性能出發，提出並實現了基於fpga控制pm4314e1晶元的介面模塊完成對e1鏈路信號的監控和告警功能的改進方案。
  7. This thesis deals with design and application of a multiprocessor made of four dsps in monitoring receiver. the broadband monitoring receiver requires a kind of chip with high performance because of complicated intermediate frequency signal processing. the author selects a kind of digital signal processor called adsp21160. during the process of design, the author uses cpld, fpga and some special cpus to finish signal, processing in the monitoring receiver. cluster multiprocessor based on vxibus made of four adsp21160 is put forward. the task distribution of four dsps is solved too. furthermore, data transition methods between chips at a high speed through link ports and chip extension mode using external port are recommended. the author debugs, emulates the program in one adsp - 21160 ez - kit lite and simulates the multiprocessor program in visualdsp + +

    本文主要探討了監測接收機中多dsp處理模塊的設計與應用，寬帶監測接收機的中頻處理數據量大、實時性高，這樣，對dsp晶元提出了很高的要求，作者通過比較選擇了最適用於監測接收機的數字信號處理器adsp21160 ，並結合使用了cpld 、 fpga以及一些專用的cpu來完成監測接收機中的數據處理。作者提出了由四片adsp21160組成的簇式多dsp處理模塊的結構並配以了vxi總線，論述了簇式結構的特點，解決了多dsp處理模塊中四片adsp21160的任務分配問題。
  8. The dynamic bit rate allocation module receives relevant data from the loss rate of multi - media data packet, jitter, delay, and compares these data with predefined values to make one of these 3 decisions that : decrease the video bit rate ( stat = decrease ), or maintain current video bit rate ( stat = hold ), or increase video bit rate ( stat = inccease ). the video bit rate will be adjusted according to the decision and the total bit rate is changed accordingly. in this way the impact of network environmental variation is settled, and consequently the adaptability of videoconference systems in remote education area is improved

    整個模型從rtcp協議獲得多媒體數據包丟失率（ lossrate ） 、抖動（ jitter ） 、延時（ delay ）的相關數據，這些數據與預先設定好的閥值作比較，得出減小視頻位速率（ stat = dectease ） 、維持視頻位速率不變（ stat = hold ）或增大視頻位速率（ stat = increase ）的決定，模塊根據這些決定對視頻位速率進行相應的調整，從而總的位速率也相應變化，這樣可以減小由於網路環境變化而帶來的影響，從而提高視頻會議在遠程教育應用中的實用性。
  9. In this paper, the streaming media technology applied to network video monitor system are researched on the basis of video streaming. the emphases are put on system design, video captures and play, and the design of network transmission module and relevant software development method. in fact, uality of service of the network has unstable characteristics, we have analyzed qos guarantee strategy in video streaming transmission on network, and presents a integrated qos guarantee scheme which based on data encapsulation, buffer storage technology and congestion control on network. this scheme do its best to avoid the big delay or congestion on network based on make full use of network bandwidth, which can guarantee the best qos of the video transmission

    重點討論了系統架構、視頻捕獲和播放、網路傳輸模塊設計以及相關軟體開發方法。同時，針對實際網路中存在的服務不穩定性特點，分析了視頻流在網路傳輸過程中的qos保證技術，並在系統中提出了基於數據封裝、緩存技術以及網路擁塞控制機制的綜合qos解決方案。該方案使系統在充分利用網路帶寬的情況下最大程度上避免出現大的延遲或擁塞，保證了視頻傳輸的最佳服務質量。
  10. Connectors for use in d. c. low - frequency analogue and digital high speed data applications. part 4 - 104 : printed board connectors with assessed quality. detail specification for two - part modular connectors, basic grid of 2, 0 mm, with terminations on a multiple grid of 0, 5 mm

    直流低頻模擬設備和數字高速數據應用設備用連接器.第4 - 104部分:經質量評估的印刷電路板連接器.帶0 . 5 mm多柵格終端的2 . 0 mm基本柵格雙部件模塊連接器的詳細規范
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