signal quantization 中文意思是什麼

signal quantization 解釋
信號量化
  • 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...
  • quantization : 分層量子化把連續量轉換為數字
  1. To increase the bearing accuracy of amplitude - comparison, the multi - channel system was chosen, the angle of reaching of moving antenna pattern serial was estimated from the frequency domain using the phase - delay estimating method, and at the same time, the selection of antenna, quantization of signal and touch switches were optimized in concrete engineering practice, and so the requirement of the index was satisfied

    為提高比幅測向的精度，選用多通道體制，採取相位延時估計法從頻域來估算移動天線方向圖系列的達到角，同時在具體的工程實現上對天線選取、信號的量化、去摸開關等進行優化，從而滿足指標要求。
  2. Quantization error analysis and signal reconstruction

    量化誤差分析與信號重建
  3. Sigma - delta modulator, combined with oversampling, effectively attenuate the in - band quantization noise in the output signal and enhance the signal - to - noise ratio ( snr ) through the shaping of the quantization error

    調制器與過采樣相結合，對量化誤差噪聲進行整形，有效衰減輸出信號的帶內量化噪聲，提高了輸出帶內信噪比（ snr ） 。
  4. 36 covers the fundamentals of digital communications and networking, including the basics of information theory, sampling and quantization, coding, modulation, signal detection and system performance in the presence of noise

    36包含數位通訊和網路基礎，其中計有基本的資訊理論、取樣及量化、編碼、調變、訊號偵測及有雜訊時的系統效能。
  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. In the thesis, we select the mel - frequency cepstrum coefficients based on analyzing a lot of parameters of speech signal. mel cepstrum is of better recognition and anti - noise capability. ( 2 ) dynamic time warping, vector quantization, hidden markov model and artificial neural network can be used in speaker recognition

    （ 2 ）現有的說話人識別方法有動態時間規整法、矢量量化法、隱馬爾可夫模型和神經網路法等，其中hmm已成為目前最佳的說話人識別處理模型。
  7. The algorithin adopts two well - known ideas called spread spectrum and quantization, first applies a frequency transformation on the motion signal, and then embeds watermark bits by quantizing proper intermediate frequency coefficients

    本章的演算法應用了量化與擴展頻譜的思想，首先對運動信號進行頻域變換，在dct域上選擇一定數量的中頻交流系數量化嵌入水印信息。
  8. Before the development of the system, the article describes the above - mentioned aspects, as the bases of the system development. the article emphasizes related auto - controlling technologies : open - 100p and close - 100p, and control mode of negative - feedback, the scatter and quantization of the simulate signal, the conception of a / d and d / a conversion and code / encode, the basic sampling principles of the simulate signal. the article introduces the operation method and process of the system by means of the load spectrum

    文章對相關的理論進行了陳述，以作為系統開發的理論依據，重點闡述了自動控制系統中包括開環閉環在內的幾大主要控制模式，以及有關的負反饋控制方式，模擬信號的離散與量化，模數轉換、數模轉換、編碼譯碼的概念，及模擬信號采樣的基本原理? ?采樣定理，並以載荷譜法為例，簡述了所研究的系統將要採取的工作方式及工作過程。
  9. 5. for different decoding algorithm and different signaling schemes, different quantization schemes are used. the nonuniform quantization method for the special property signal is put forward for the first time

    系統地研究了turbo碼的各種迭代譯碼演算法的原理，對演算法中參數的取值進行了討論，並在awgn通道上進行了模擬比較。
  10. It is a pop method to embed watermark in frequency field, in most literature, they embed watermark into the coefficients of fft, dct, or high - frequency of dwt using quantization method, we think that : embedding watermark into the low - frequency of audio signal dwt field can improve the robustness of watermark. the watermark is embedded in the maximum of subsection of approximate component the watermark signal using quantization method, for the same quantization size, the “ noise ” added to the signal is

    在頻率域嵌入水印信息，是目前一種主流的嵌入演算法，在很多文獻中，都是通過量化音頻信號的ftf系數， dct系數，或者是dwt域的高頻系數。我們認為:在小波域內的近似分量（低頻系數）中嵌入水印能夠提高數字水印的魯棒性，通過量化嵌入水印的方法，將水印嵌入到近似分量中每個分段中最大值上，因為這樣對于同一個量化步長，量化對象的幅值越大，所疊加的「噪聲」就越小，從而提高了數字水印的不可感知性。
  11. In signal processing circuit, the key of our study, based on methods of mcu + cpld and a / d converter, a time interval measurement unit is done, in which an isp cpld counter is carried out to judge laser pulse for controlling counting and offering signal of time series and control, and a count quantization error measurement circuit which main ramp circuit and 12 bits a / d conversion circuit guarantees the resolution of system

    信號處理部分是本文研究的關鍵，採用mcu + cpld的設計方法和模數轉換技術構成時間間隔測量單元的理論基礎，其中用可在系統編程的cpld計數器實現了對循環光脈沖的判斷以開關計數，並提供計數量化誤差測量電路相應的時序和控制信號，用斜坡電路和12位a / d轉換電路完成對計數量化誤差的測量，保證了系統的解析度。
  12. In section two, we introduce some of the main coding theories that was in the g. 729, including the digital model of the production of speech signal, the linear prediction coding, vector quantization, lbg arithmetic and perceptual weighted filtering

    第二章著重討論了g 729語音壓縮協議中所涉及到的語音編碼基礎理論。主要包括語音信號產生的數字模型、語音信號的線性預測分析、矢量量化及其lbg演算法和感知加權濾波器。
  13. The main contents of this paper include : the theory of if digitization ( sampling, quantization, quadrature demodulation and multi - rate digital signal processing ), the simulation of the system project, the design and implementation of the ddc part and introduction of the main devices applied in it

    本文的主要內容包括：中頻數字化理論（采樣，量化，正交解調，多相濾波結構以及fir濾波器的設計等） 、系統方案論證及模擬、數字下變頻部分的硬體實現、系統調試及結果分析以及系統採用的主要器件介紹等。
  14. Summarizing the development statement of monitoring technology for bridge, based on principle of pulse laser ranger detection and fiber - optic strain measurement, in view of the problem affected by single - chip inherent feature, integrating the goodness of cpld device and single - chip, using a / d converter to measure the count quantization error, a strain measurement system is worked out. the above system chiefly consists of light source, optic fiber sensor, photo detector and signal processing circuit

    本文綜述了國內外橋梁監測技術的發展概況，在深入研究脈沖激光測距和光纖應變測試原理的基礎上，針對單片機固有計數頻率低、計數量化誤差大和延時不固定等不足，結合cpld計數頻率高、延時小而固定和單片機控制功能強的優勢，並採用模數轉換技術設計計數量化誤差測量電路，提出了基於激光脈沖時間測量法的光纖應變測量的方案。
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