解碼波形 的英文怎麼說
中文拼音 [jiěmǎbōxíng]
解碼波形
英文
decode waveform-
3. brings forward a watermark method based on fractal theoretics this paper has a novelty that joins the fractal technology, dct and dwt transform, watermark technology together. fractal technology has strong vitality on the image encoding. dct and dwt transforms have broad applications on the image process. so this paper introduces fractal technology into watermark technology, brings forward fractal watermark technology in dct and dwt domain and tests the fractal watermark technology by many tests. fractal technology is a new thought and solved scheme without doubt
3 .提出了基於分形理論的數字水印方法將分形技術、 dct和dwt變換技術、水印技術有機地結合起來是本文的一大創新，分形技術在圖像編碼方面具有強大的生命力， dct和dwt變換技術在圖像處理方面有著廣泛的應用，因此本文將分形變換技術引入到數字水印技術中來，分別在dct域和小波域內提出了分形水印技術，並且通過大量的實驗證實了分形水印技術的可行性，這無疑是一種新的思想和解決方案。However, adaptive equalization technique can decrease the effect of isi and noise, reduce the bit error ratio and trace time - changing channel
而自適應均衡技術可以降低碼間干擾和噪聲的影響，減少誤碼，並能夠跟蹤時變通道，解決時變波形的嚴重失真問題。Based on output wave of hs2260 encoding chip, this paper analyzes the encoding features of this chip and come up with the specific method of auto - adapted baud rate decoding of this chip by mcu and the method that was used in the long - click and double - click events recognition that was applied in remote controllor by this chip
從hs2260編碼晶元的輸出波形入手，分析了該晶元的編碼特徵，提出了使用單片機對其進行自適應波特率解碼的方法，同時也提出了該晶元在遙控器應用中的長鍵及雙擊動作的識別方法。One is to use fourier transformation to convert the source signal from time domain to frequency domain and to discard high frequency harmonious components upwards of 19 ( gb / t14953 - 93 d5. 3 demanding ), then to have static huffman coding to the quantized char array which is composed of reserved direct current component and basic wave and each high frequency " s amplitudes and angles. the other is to use discrete wavelet transformation to convert the source signal from time domain to frequency domain and to set the high frequency coefficients that its absolute value is smaller than the given threshold to zero, then to have dynamic huffman coding to the quantized char array which is composed of multiple, wavelet ' s level, datum length, low frequency coefficients and reserved high frequency coefficients. mass simulinks and analyses under the two circumstances have done to show that data compression ratio is small and the relative error is also small and within the permission of engineering and the compression problem can be solved in theory of measured datum of power system
第一種情況的壓縮方法為：採用傳統的傅立葉變換把原始信號從時間域變換到頻率域，舍棄20次及其以上的高次諧波成分（保證了gb / t14953 ? 93d5 . 3要求） ，然後對保留的直流分量、基波和各次諧波的幅值和相角數據量化后和量化時分別乘以的倍數系數構成一個數組，以字元形式保存，採用靜態huffman編碼對變換數據進行壓縮；採用離散小波變換把原始信號從時間域變換到頻率域，然後對分解得到的高頻系數進行閾值量化處理，對乘以的倍數系數、小波變換的階數、小波變換后的低頻、各級高頻以及原始數據長度、量化后的低頻系數以及保留的高頻系數大小、位置構成一個數組，以字元形式保存，採用動態huffman編碼對這個文件進行壓縮。We concluded that designing dsp and wavelet transform + spiht coding + mrme method based video compressing system is applicable. if real - time video data collection part is added, we can get a perfect real time video collecting and compressing system
在dsp上實現小波分解+ spiht編碼+小波域內運動預測方法進行視頻壓縮具有較好的實用性，如果在系統中加入實時視頻信號採集，可形成完整的視頻採集壓縮系統。We made an improvement in overcoming the defects in speech signal adaptive delta modulation ( abbr. adm ), such as slope overloading and grain noise. in this method, numerical sliding average filtering was used for filtering decoding speech signal. experiments and analyses indicate that the method makes waveforms in good agreement between the decoding of adm and the original pulse coding modulation ( abbr. pcm ) signal, and considerably improves, the playback speech quality in naturalness, legibility and under standability
針對語音信號自適應增量調制（ adm ）方式中斜率過載和顆粒噪聲缺點，提出了一種改進方法，它利用滑動平均方法對解碼后的信號進行數字濾波.試驗和分析表明，該方法使解碼后的信號波形與原脈沖編碼調制（ pcm ）波形具有很好的一致性，使再生語音質量在自然度、清晰度和可懂度方面比改進前均有較大提高This paper propose a improvement method of mzte, adopted in mpeg - 4 for encoding stilltexture. firstly, the basic conception of image / video compression is provi - ded, and then the conception of wavelet decomposing and fractal predictive encoding, lastly, mzte and it ' s improvement is illuminated detailedly
首先分析了圖像及視頻壓縮的技術現狀，論述了小波分解及在圖像壓縮中的應用、分形預測編碼的理論和方法，然後重點對mzte進行了深入的論述分析，最後對mzte的改進作了詳細說明。Whether ifing you want to examine this kinds of magnetic field, can spend profit analytic method not sad not rich, calculate out and not last code organism and magnetic field wave form not standards of object ( for instance : liver, its code is d273 ), store it in the resonance detector of quantum
要想測得這種磁場，可用富利哀解析法，將生物體及物體的標準磁場波形計算出並編成代碼（如：肝臟，其代碼是d273 ） ，儲存於微量子共振檢測儀中。The kernel of improvement is that fractal predictive encoding is imported into mzte, and wavelet coefficient is encoded in zte mode or in fractal mode according to in which mode the encoding error is minimum
這種改進的核心思想是通過引入分形預測編碼方法，根據具體情況，綜合使用零樹熵編碼和分形預測編碼方法對圖像小波分解系數進行編碼。The pseudorandom codes have a good autocorrelation of double - values. in recent years, to solve the problems of anti - interference and the ambiguity of range and velocity, a lot of countries do much research to change the waveform of radar signal. the most important improve is to use symmetrical pulses to interrupt frequency modulated continuous wave ( fmpcw )
早期的fmicw採用偽碼序列截斷，偽隨機碼具有良好的雙值自相關特性，其中最常用的是m序列截斷的fmicw 。近年來，為了解決抗干擾和測距、測速模糊問題，許多國家已對雷達信號波形的改進進行了研究。In the wi coder, the speech signal is represented by an evolving characteristic waveform ( cw ). the cw is decomposed into a slowly evolving waveform ( sew ) and a rapidly evolving waveform ( rew ), representing the quasi - periodic and non - periodic components of speech, respectively
Wi編碼器將語音信號表示為漸變的特徵波形（ cw ? characteristicwaveform ） ，然後將其分解為慢漸變波形（ sew ? slowlyevolvingwaveform ）和快漸變波形（ rew ? rapidlyevolvingwaveform ） ，分別表示語音的準周期成分和類噪聲成分。In the fec part, rs ( reed - solomon ) code and interleave are chosen as the basic elements of the error correction system at first ; then the coding parameter and data structure are determined based on the results of matlab simulation ; at last, hdl modules are implemented in fpga using verilog hdl, test results and simulation diagrams are presented as well. in the designing process, the proper division of the modules and the cooperation between modules need a lot of consideration, and the top - down method is adopted to solve these questions
在前向糾錯的設計部分，文章首先根據系統的誤比特率要求選擇了rs （ reed - solomon ）碼和交織器作為前向糾錯部分的基本構架，再根據matlab的模擬結果得到了具體的編解碼參數和碼字結構，最後在fpga中用硬體描述語言veriloghdl實現了各個編解碼模塊，並給出了測試數據、實現結果及時序模擬波形圖。Test results show the proposed method is simple and effective, and in particular it can terminate encoding / decoding at any point and still produce a signal close to the original one
模擬結果表明該演算法對電力系統故障數據的壓縮十分有效，並且實現簡單，在任意點中斷編解碼不會影響演算法重構出基本波形。分享友人