filter distortion 中文意思是什麼

filter distortion 解釋
濾波失真
  • filter : n 1 濾器，濾紙，過濾用料[砂、炭等]。2 【無線電】濾波器；【物理學】濾光鏡，濾色器。vt 過濾，用過濾...
  • distortion : n. 1. 歪扭，扭曲。2. 【電學】（信號、波形等的）失真；【物理學】（透鏡成像產生的）畸變；【醫學】扭轉，變形。3. 竄改，歪曲，曲解。adj. -al
  1. The basic technologic scheme on microwave transmission, currently maturate and advanced microwave transfer technology and equipment, efficiency slot gap antenna, character quality filter, mixer, exact crystalloid concussion apparatus, power backspacing technology, pre - distortion adjustment. furthermore, the technologic schemes practicing using multilevel microwave transfer technology in some areas such as lengshuijiang is introduced in the paper

    採用了當前比較成熟、先進的微波傳輸技術和設備，如高效的縫隙天線、高品質濾波器、混合器、高精密的晶體震蕩器、功率回退技術、預失真校正技術，結合工程實際，設計了湖南電廣網路33家合資公司的mmds無線微波數字電視覆蓋的基本技術方案，和個別地區（冷水江市數字微波工程）的多級微波傳輸的具體技術方案。
  2. Computer simulation results show that the proposed algorithm reduces the signal distortion and the reverberation which are caused by misadjustment errors in the adaptive filter and the correlated component of the speech in the reference signal compared with a conventional adaptive noise canceller ( anc )

    模擬結果證明nanc演算法有效克服了影響傳統自適應噪聲抵消系統（ anc ）性能的一些瓶頸，如兩輸入中的非相關噪聲，參考輸入中的信號成分與自適應濾波器失調誤差而產生的信號失真、回響等情況。
  3. The mathematic models of sampling and reconstruction are analysed respectively, and an important conclusion is got, that oversampling can decrease high frequence distortion of d / a output signal and the difficulty of designing lowpass filter. as a result the signal quality is improved

    分析了采樣和重構的數學模型，得出了一個重要結論:過采樣可以減少d / a輸出信號的高頻端衰減失真，可以降低低通濾波器的設計難度，從而提高波形質量。
  4. Under the research of the characteristic of three classical analog filter with simulation software - matlab, this paper devised lowpass circuit that not only can keep the useful signal out of distortion but also benefits the following sample tache and filter tache

    用matlab分析了三種經典模擬濾波器的濾波性能，設計出了能保持有用信號不失真又有利於後面的采樣和數字濾波環節的低通電路。
  5. 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系統的頻響、量化噪聲特性、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分析研究，所得到的理論結果為： （ 1 ）混合濾波器組adc系統與開關電容濾波器組adc系統的失真/混迭函數一致； （ 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提高了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。
  6. To put into operation a large amount of non - linear load, make in harmony wave of rural power grids serious becoming in pollution, pass to rural local electric wire netting main in harmony analysis of wave source, put forward in order to restrain from insert rural power grids in harmony wave source voltage total in harmony wave distortion rate and the containing rate change last device number pulsating for increase of goal, increase the pulse of the current change device and install light specified value electricity active wave filter mix with passive wave filter near the harmonics source to control the wave in harmony

    摘要大量非線性負荷的投運，使農村電網的諧波污染日趨嚴重，通過對農村地方電網主要諧波源的分析，最終提出了以限制接入農村電網的諧波源的電壓總諧波畸變率和各次諧波電壓含有率為目標的增加換流裝置脈動數，以及在諧波源附近裝設小額定值的電力有源濾波器配以無源濾波器的混合型電力濾波方式，以進行諧波治理。
  7. Geometric distortion is traditionally corrected by an image resampling operation which is applied as a post - processing step to pfa. the scene size limits of pfa presented by range curvature qpe, can be alleviated by using an efficient image domain space - vairant post - filter

    通常採用圖像域插值的方法校正幾何失真，而利用空變濾波器使散焦的點重新聚焦，這些校正方法可以減輕距離彎曲對成像范圍的限制。
  8. By comparing the image - preprocessing results of different processing algorithms, an optimized algorithm was decided to ensure satisfying correlation snr and preprocessing rate to be obtained. synthetic discriminant function ( sdf ) filters of the 3 - d targets were designed and the reference filter libs ( rfl ) were constructed to provide high correlation snr. real - time distortion - invariant optical correlation was realized by temporal - spatial multiplexing technique

    為了保證opr系統有高的相關信噪比（ snr ）及良好的實時性能，本文對不同圖像預處理演算法的處理性能及效果進行了比較分析，為opr系統選取恰當的圖像預處理演算法提供了依據；將時間多重化技術與空間多重化技術相結合，設計製作了三維目標的可實時刷新的sdf參考濾波器庫，為opr系統提供了高snr的相關輸出，從而實現了opr系統對目標的實時畸變不變光學相關；將人工神經網路（ ann技術）用於相關信號后處理，有效提高了opr系統的識別效率。
  9. In chapter 4, i performed the analyzing work with wavelet and fastica and find that wavelet was a high efficient way to filter the cep signal when i set the wavelet and scaling function to haar, decomposing level to 4, threshold method to fixed to threshold and white - noise structure to scaled white - noise. it took the advantage that reduced the accumulating times to 60 with more smooth signal and less distortion. but fastica takes no advantage on this facet

    本文通過小波變換和獨立分量快速分析模式識別的方法對cep數據進行了分析處理，同時與數字低通橢圓濾波器的處理效果進行了比較，發現用小波對cep的數據進行濾波處理時，可以將數據的疊加次數從120降低到60次左右，且信號的質量要比以前的處理方法好；但是獨立分量快速分析方法效果不很好。
  10. According to the nyquist first criterion, the usual way is to use raising cosine shaping filter in real communication system. by choosing appropriate rolling off factor and determining the distribution of its characteristics between the transmitter and the receiver, the shaping, filter will minimize the nonlinear distortion, of channel

    根據奈奎斯特第一準則，在實際的通信系統中，通常的途徑是採用升餘弦滾降成形濾波器，選擇適當的滾降系數，並確定其特性在收、發兩端的分配問題，以便將通道非線性的影響最小化。
  11. Some improvement is made in this dissertation based on compare and conclusion of existing methods and theories, such as substituting space - variant filter for range interpolation in geometric distortion correction and improving atafs, both of which are demonstrated to reduce computational burden effectively

    在現有的理論的基礎上，本文簡化了幾何校正通常所採用兩維插值，並且改進了wpfa和dda演算法，這些改進有效的提高了演算法性能。
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