混合高頻分量 的英文怎麼說

中文拼音 [húngāobīnfēnliáng]
混合高頻分量 英文
mixed high frequency component
  • : 混形容詞1. (渾濁) muddy; turbid2. (糊塗; 不明事理) foolish; stupid
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
  • : 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...
  • : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • 混合 : (攙雜在一起) mix; blend; mingle; admix; mixture; mix up; interfusion; commixture; blending; cre...
  • 高頻 : high frequency
  1. In this system two oscillator are used for mixing. pll for high local oscillator and dds + pll for low local oscillator. by making full use of favourable narrow - band tracing filter character of pll and by combining the merits of dds such as super fine frequency resolution, high frequency accuracy, very fast frequency hoping with it, the pll / pll + dds frequency synthesizer presents wide band high quality source and super small frequency hoping step

    系統採用兩次,其中本振的設計採用pll鎖相環成來實現,充發揮了鎖相環成器的優良特性,實現了系統所要求的帶本振源;低本振採用pll + dds成來實現,結pll優良的鎖相特性與dds的率解析度、率精確度等優點,實現了率的小步進精度成。
  2. Supported by heilongjiang province natural science foundation projects " research on the errors mechanism of time division a. c. power measurement " ( no. e9719 ), " research on theory of analog digital mixed sampling power energy measurement " ( no. e01 - 15 ) and foundation for university key teacher by the ministry of education " the research on the low audio frequency a. c. power measurement smart instrument " ( no. 1087 ), in this dissertation it is made that a systematic and deep study on power measurement model errors and instrument errors about analog sampling, digital sampling and mixed sampling measurement, and fully experiments about mixed sampling measurement

    本學位論文在黑龍江省自然科學基金資助項目「時割交流功率測原理誤差產生機理的理論研究」 (編號: e9719 ) , 「模擬數字採樣功率與電能測的理論研究」 (編號: e01 - 15 )和教育部等學校骨幹教師資助計劃項目「中電功率測智能儀器的研製」 (編號: 1087 )的資助下,以電功率模擬采樣測、數字采樣測採樣測方法為對象,對電功率測的原理誤差和儀器誤差進行了系統和深入的理論研究和有關的實驗研究。
  3. 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 (編碼正交多路復用) ,大信號插入和保護間隔技術等核心技術,使之能抵抗電平( 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、同網等方面具有獨特的優勢。
  4. Frequency response, quantization noise, reconstruction error and its sensitivity to mismatch among adcs are studied at length in prqmf banks adc system, and the theoretic results include : ( 1 ) the distortion / aliasing functions of hybrid filter banks adc system is similar with that of switch capacitor filter banks adc system ; ( 2 ) for wide or narrow band input signal, the effective resolution of the two adc systems is 0. 51og2m bits higher than their adc ; ( 3 ) reconstruction error ' s sensitivity to mismatch among adcs of the two adc systems is reduced effectively than time interleaved adc system

    2對prqmf濾波器組adc系統的響、化噪聲特性、重建誤差特性以及重建誤差對adc間的失配敏感性進行了理論析研究,所得到的理論結果為: ( 1 )濾波器組adc系統與開關電容濾波器組adc系統的失真/迭函數一致; ( 2 )無論輸入寬帶還是窄帶信號,這兩種adc系統的有效解析度均比其adc提了0 . 5log _ 2m比特; ( 3 )這兩種adc系統的重建誤差對其adc間的失配敏感性均明顯低於時間交織adc系統。
  5. In order to further improve the compression performance, the model is modified with the help of motion compensation technique. experimental results also show that at various conditions, mc - 3dpem is superior to 3d - pem without motion compensation

    實驗結果表明:相同碼率情況下,基於運動補償的mc - 3dpem模型獲得的psnr於3d - pem模型,同時視三個編碼比每個單獨編碼時具有更好的psnr 。
  6. At the same time, the method of disposal phase shift of ct by compensation is introduced. then the analysis and statistic of electrical power quality, the control scheme and compensating amount of capacitor for reactive power compensation are analyzed respectively. and in the paper, the control with a / y and the switch with ac contactor and solid state switch is valid measure not only for improving operate level economically and amending electrical power quality but also for avoiding of replacing switch frequently and decrease economic loss

    然後對現有的演算法進行了詳細的析、比較,篩選出既能滿足硬體要求又可降低投資、保證精度、簡化軟體的方案,確定了準同步采樣的方案,並通過對準同步采樣誤差的析,提出了一種從45開始采樣,從而提精度的采樣數據處理辦法,同時,對于電流互感器相位漂移提出了一種補償辦法,接著對裝置中電能質析與統計以及無功補償中電容器的補償、投切原則也作了相應析,其中對于無功補償採用y接線,並利用交流接觸器和固態開關共同投切電容,不但提了經濟運行水平、改善了電能質,而且有效的避免了繁更換開關,減少了經濟損失;最後,設計了裝置的硬體電路並繪制了相應的軟體流程圖。
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