signal reconstruction 中文意思是什麼

signal reconstruction 解釋
信號重構
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  • reconstruction : n. 1. 重建；改造；復興。2. 〈美國〉南北戰爭后南部各州的重建。
  1. Two block time - recursive algorithms are developed for the efficient and fast computation of the 1 - d rdgt coefficients and for the fast reconstruction of the original signal from the coefficients in both the critical sampling case and the oversampling case. the two algorithms are implemented respectively by a unified parallel lattice structure. and the computational complexity analysis and comparison show that the proposed algorithms provide a more efficient and faster method for the computation of the discrete gabor transforms

    首先論證了一維rdgt系數求解演算法和由變換系數重建原信號演算法，不論是在臨界抽樣條件下還是在過抽樣條件下，都同樣具有塊時間遞歸特性，並提出了相應的塊時間遞歸演算法及其并行格型結構實現方法，計算機模擬驗證了并行格型結構實現的可行性，計算復雜性分析與比較也說明了rdgt塊時間遞歸演算法的并行格型結構在計算時間方面所具有的高速和高效性能。
  2. The abrupt change informatiom can be obtained through decomposing and reconstruction of the vibrating signal by wavelet packet ; therefore the fault condition of the hydro - generator unit can confirm and provide decision support for diagnosing the vibration fault of the unit

    運用小波包分析對振動信號進行分解與重構，可以獲得振動信號的突變信息，即可以獲得機組振動的故障狀況，從而?診斷機組振動的故障狀況提供決策支援。
  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. Quantization error analysis and signal reconstruction

    量化誤差分析與信號重建
  5. The paper reconstructs frequency spectrum and reconstructing signal of a continuous signal based on matlab, presents the error of reconstructing signal, and makes an analysis of the influence from sampling period on the superposition of frequency spectrum and precision of sampling signal reconstruction

    摘要基於matlab再現了連續信號的采樣頻譜和重構的時域信號，給出了信號重構的誤差，並分析了采樣周期對采樣頻譜疊加和信號重構精度的影響。
  6. This dissertation is different from traditional speech enhancement methods which are based on noise characteristic such as adaptive noise cancellation or spectral subtraction processing. in this dissertation the speech signal conducted by bone was taken as the object to be studied and the exploitive study on the acoustical characteristic of speech signal conducted by bone was performed by the method of theory combined with experiment. then a proposition about speech reconstruction based on speech signal conducted by bone was presented, and the design of software and hardware was completed

    本文與傳統的基於噪聲特性的自適應噪聲抵消法、頻譜減法等語音增強降噪技術不同，是以骨導語言為研究對象，採用理論與實驗相結合的方法對骨導信號的聲學特性進行了探索性研究，進而提出了基於骨導信號的語音重構技術，並完成了相應的軟硬體開發。
  7. ( 4 ) since there is no perfect theoretical guide, the characteristics of orthogonal wavelet, semi - orthogonal wavelet and biorthogonal wavelet in signal decomposition and reconstruction are compared, and the conclusion of the study demonstrates that semi - orthogonal wavelet is a good wavelet for fault diagnosis in tilting control system of tilting train. a new approach is presented for deciding the fault threshold. ( 5 ) a generalized wavelet neural network is put forward by integrating wavelet analysis with neural network

    （ 4 ）針對小波基的選擇缺乏完善理論指導的實際情況，通過對常用的正交、半正交、雙正交小波基提取信號特性的比較，確定出了適合擺式列車傾擺控制系統故障診斷的小波基? ?半正交小波基，並提出了一種新的確定故障檢測閾值的方法，可以快速地檢測出故障發生時刻。
  8. In this paper, it is expounded the relationship of two - channel perfect reconstruction filter banks to wavelet transform on the base of signal processing and engineering application ; avoiding complex path formula deduction, the selection of a desirable mother wavelet function becomes the design of two - channel perfect reconstruction filter banks

    摘要從信號處理和工程應用的角度出發，避開了復雜的數學公式推導，闡述了雙通道濾波?組與小波變換的關系，並討論了母小波函數的選擇可歸結為正交鏡像濾波器的設計。
  9. 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。
  10. Based on the theory of charge calibration and sample and reconstruction of frequency limited signal, the scheme of adopting direct digital synthesizing technology and technology of computer is put forward in the paper. the design of hardware and software is described in detail, the error of the outputs signals of the high precision charge calibrator has been analyzed in theory

    文中基於電荷校準的原理及帶限信號的抽樣與重構理論，提出了採用直接數字合成技術與計算機技術的整體設計方案，詳細講述了硬體電路與系統軟體的設計過程，並對高精度電荷校準儀輸出信號的誤差進行了理論分析。
  11. A kind of direct reconstruction method for non - uniform sampling signal

    非均勻采樣信號重建的一種直接方法
  12. Research of error resilience technology for video communication based on h. 263 codec major : signal and information processing data : author : meng yan signature : tutor : zhang erhu liu shichang signature : abstract the reconstructed image quality can be degraded substantially by errors during the transmitting over the communication channel, especially when the video is compressed by temporal and spatial coding ways, which leads to error propagation in frame sequence, so the error resilience procedure should be performed to improve the reconstruction quality

    由於通信系統的通道不可避免的存在噪聲，傳輸數據流必然存在誤碼。對于h . 26x的視頻編碼流，由於空域和時域的壓縮方法以及熵編碼方法的應用，即使是一個比特的錯誤，常會影響一個區域的圖像不能正確解碼，同時錯誤的圖像還會擴散影響后續數幀圖像。因此有必要在標準解碼程序的基礎上，添加容錯功能。
  13. The second aspect was to design the speech reconstruction based on speech signal conducted by bone and its implementation

    然後，探討了基於骨導信號的語音重構設計方法和實現途徑。
  14. Focused on the sine model of the speech signal creation, and finished the reconstruction by using it. at the same time, based on the knowledge of digital signal processing, reconstruction by harmonic correction and time variant digital filter was proposed

    分析了語音信號產生的正弦模型，並在此基礎上完成了骨導信號的語音重構；與此同時，結合數字信號處理知識，分別用諧波修正和時變數字濾波器的方法，完成基於骨導信號的語音重構。
  15. The reconstruction project of shanghai metro line 1 is carried cut in accordance with the master plan of the south station, construction subsequence, signal reconstruction plan and vehicle operation organization

    摘要介紹了上海軌道交通1號線上海南站站改建工程的總體設計方案、施工撥接計劃、施工順序、信號改造過渡方案、列車運行組織以及施工撥接的全過程。
  16. This dissertation investigates primarily the channelized receiver ’ s application in electronic reconnaissance, and puts forward a project of the wideband signal reconstruction system including 4 - band efficient channelized receivers and a project which is 8 - band efficient digital channelized ifm receiver, then testifies them with simulation

    文中重點討論了通道化數字接收機在電子偵察中的應用，提出了基於數字通道化高效結構的4通道重建系統方案和8通道ifm接收機方案，並通過系統模擬論證了方案的正確性。
  17. A signal reconstruction theorem under complete set of orthogonal integral transform

    完備正交積分變換下的信號重構
  18. The ridge characteristic related closely to the instantaneous frequency of the signal. a serial of ridge extraction and signal reconstruction algorithms have been developed using phase or module information of parameters on the ridges

    由此發展出一系列根據變換域參數的相位信息、模值信息等提取脊的方法，同時也發展出各種利用脊上的信息對信號進行重建的方法。
  19. Some of the signal characteristics can be better presented in certain transformed domain, so that in order to describe such features, it being necessary to study the character extraction and signal reconstruction algorithms based on information from transformed domain

    信號的某些特徵在變換域上能夠得到更好的表示。為了進行信號特徵的提取，需要將采樣得到的時域信號在相應的變換域上表示出來，從而得到對信號特徵更好的描述並進行提取。
  20. At first, the concept of perfect reconstrution of input signal from the view of filter banks and wavelet transform are introduced, . and then the analysis / synthesis system is analyzed in time domain, third, the kalman filter is explained, finally, a multirate kalman synthesis filter and multirate kalman filterirng algorithm are intruduced to achieve optimal reconstruction of the input signal with the consideraion of the subband noises. simulation results show that the performance improvement of signal reconstruction in noisy filter bank system is remarkble

    本文從濾波器組和子波變換兩個方面闡述了分析/綜合系統及其對輸入信號完全重構的概念；研究了考慮子帶噪聲條件下，基於濾波器組的多抽樣率分析/綜合成系統對輸入信號的最佳重構問題。實現了用多抽樣率卡爾曼綜合濾波器取代常規的綜合濾波器達到對輸入信號的最佳重構。
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