odb 中文意思是什麼

odb 解釋
加密型
  1. A patch antenna with etched holes on the ground plane is also studied. the performance of the antenna at the resonant frequency is analyzed by using the fdtd method together with the pml boundary treatment. the results show that the surface waves are suppressed greatly, the bandwidth is improved and a 1 odb reduction on the sidelobe level is achieved at the 110 and 260 directions in the e plane

    全面地研究了地面腐蝕周期圓孔結構的電磁晶體貼片天線在基波頻率處的性能，用fdtd方法並結合pml邊界處理技術對該天線所取得的研究結果顯示，本文設計的地面腐蝕型電磁晶體結構抑制了貼片天線中的表面波，增加了天線的帶寬，並有效地削弱了旁瓣，使天線的e面方向圖上110和260方向的兩個旁瓣被削弱了10db 。
  2. And pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion

    論文首先描述了數字電視地面廣播的需求條件，技術難點和目前存在的問題，並重點分析了dvb - t系統結構流程，核心技術及系統通道特性和參數，該系統採用了cofdm （編碼正交頻分多路復用） ，大量導頻信號插入和保護間隔技術等核心技術，使之能抵抗高電平（ 0db ） ，長延時的靜態和動態多徑失真，有利於數字和模擬電視的混合傳輸，它的多載波調制模式功能和性能在移動和便攜接收、同頻網等方面具有獨特的優勢。
  3. And the lodb bandwidth was about 3. 11 ghz. through the magnetic texture treatment, its 1 odb bandwidth was increased to cover the measuring frequency range of 7. 30 - 11. 30ghz

    通過磁織構化處理，提高了其10db帶寬，使其吸收量在7 . 30 ? 11 . 30ghz內均高於10db 。
  4. Ods for database open database connectivity odb

    開放式數據庫連接
  5. Operator determined barring odb

    運營者決定的閉鎖業務
  6. Ods open database connectivity odb

    開放式數據庫連接
  7. Open database connectivity odb

    開放式數據庫連接
  8. Odb output to display buffer

    顯示輸出緩存
  9. Odb open information model

    開放信息模型
  10. The system works on the condition of odb and 13 speakers. the recognition ratio is 94 %

    系統在實際中應用，在odb 、 13個說話人的情況下取得了94的識別率。
  11. The enterprise odb gmbh organisation datenverarbeitung buerotechnik has special knowledge within the ranges office complete equipments, office material and office technics as well as electronic computers

    Odb gmbh organisation datenverarbeitung buerotechnik是一家現代化的、可靠的產品供應商，這家供應商從事辦公一體化設備，辦公用品，辦公室技術，計算機的製造、銷售。請您訪問我們的主頁，垂詢當前的產品系列和服務。
  12. The results show that ( 1 ) the " prediction & cancellation " method can successfully smooth the reverberation and sharpen edges of the echo, so may detect echoes which power are great than the reverberation background by odb in one channel, ( 2 ) the scaled probabilities method can effectually separate a echo which power is great than the background by 6db, while the reverberation is cancelled dr astically

    果。計算結果表明， 「預測一抵消」演算法對混響有平滑作用，對回波則有突出信號邊緣的作用，單通道情況下的最小可檢測信號干擾背景功率比約為odb 。概率凈化演算法在信號干擾背景功率比大於6db的情況下能有效分離回波、抑制混響。
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