量化誤差 的英文怎麼說

中文拼音 [liánghuàwùchā]
量化誤差 英文
quantization distortion
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 誤 : Ⅰ名詞（錯誤） mistake; error Ⅱ動詞1 （弄錯） mistake; misunderstand 2 （耽誤） miss 3 （使受損害...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 量化 : quantization量化器 quantizer; digitizer; 量化失真 quantizing distortion; 量化條件 quantum conditi...
  • 誤差 : error
  1. The methods of direct measurement with low precision such as frequency and time interval methods and the methods of indirect measurement with high precision such as beat frequency method, dual mixer time difference method and frequency difference multiplying method are supported on the platform. the fundamentals of each method are studied. the quantization error is analysed and the illustration is given for each method

    該平臺支持直接頻率和時差法兩種較低精度的測量方法以及雙混頻時差法、差拍頻率法和頻差倍增法高精度的簡接測量方法，本文研究了各種測量方法的原理，對各種測量方法的量化誤差作了分析，並給出具體的實例。
  2. First, based on phased array antenna ' s mono - pulse goniometry and separate coordinate technology about phase control, the antenna beam pointing error formula, caused by phase quantization error, is derived from linear array and circular array to planar array and cylindrical array

    首先以單脈沖相控陣天線測角原理為基本理論出發點，利用相位控制的坐標分離技術，基於線陣、圓形陣等簡單形式的相控陣天線，推導了平面陣、圓柱面陣等相控陣天線由相位量化誤差引起的波束指向誤差公式。
  3. Halftone watermarking algorithm by threshold - altered error diffusion

    基於變閾值量化誤差分散的半調水印演算法
  4. Firstly introduced the basic theory and method with which the analog signal can be convert to digital form, including sampling theory and course, quantification and quantification error, coding, beside those we discussed some applications of sampling technology, the reason of frequency mixture and the method to eliminate it chapter 4 introduced analog mux - switch, for the reason of simpleness we only introduce it briefly

    從第3章開始，對數據採集的基本理論進行討論，首先介紹了模擬信號數字化處理中的基本理論、方法，包括采樣過程、采樣定理、量化與量化誤差、編碼，還討論了幾種采樣技術的應用、頻率混淆產生的原因及消除措施。第4章，介紹了模擬多路開關。
  5. Quantization error analysis and signal reconstruction

    量化誤差分析與信號重建
  6. Quantization error analysis in the high speed and high precision frequency sampling

    高精度頻率采樣中的量化誤差分析
  7. Based on the psf, some basic characters including reconstructed image lateral resolution and the size limit of the recorded object in the in - line phase - shifting digital holography are theoretically discussed

    第四章討論了同軸相移數字全息中，相移角的選取、相移誤差以及量化誤差對再現像的影響。
  8. This thesis makes the analysis of the methods of frequency measurement, which is the main function of the universal counter, and decides to use the gate modification method to measure frequency

    本文對計數器的主要功能之一，頻率測量方法進行了分析，提出採用閘門時間修正法進行測頻，降低了量化誤差的影響。
  9. 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 ） 。
  10. When the quantization error is 5, the compressed average bit reach 4. 8612, i. e. the compression ratio is 2. 47, which overcomes the limitation that the compression ratio is difficult to exceed 2

    實驗結果表明，在量化誤差設定為= 5時近無損壓縮后的平均位數降低到4 . 8612bits ，即壓縮比達到了2 . 47 ，突破了無損壓縮難以達到2倍壓縮比的局限。
  11. The structure of the valve is superior to the conventional valve and the continuously tracing method solves the problem that arises as a result of the constradiction between the stepping error and response speed of the digital valve

    該閥的結構較傳統的閥更加簡單、可靠，且採用連續跟蹤控制方法消除了傳統的步進式數字閥所固有的量化誤差與響應速度之間的矛盾。
  12. The key for phased array antennas with good functions is the use of controllable phase shifters. however, phase quantization errors affect the accuracy of phased array antenna beam pointing badly, which is mainly researched here

    其中可控數字移相器的使用，是相控陣天線優越性能實現的關鍵，但由此引入的相位量化誤差，嚴重影響了相控陣天線的波束指向精度。
  13. On the realization of this new scheme, the influence of the fixed - point quantification upon the modified max - log - map algorithm is evaluated. simulations show that : if the input data is 5 bits at length, the unfavorable effect of quantification error is negligible

    在系統實現方面，分析了輸入數據的定點量化對改進的max - log - map譯碼演算法的影響，結果表明輸入數據採用5比特量化時，量化誤差對譯碼結果的影響已很小。
  14. In chapter 4 we discuss the design of the high speed and high performance vlsi and its imp1ementation, firstly we ana1yze and compare the features and ru1es of al1 kinds of fft algorithm, adopt complex radix 4 butterfly calcu1ation as basic alu, then discuss all kinds of process architectures, the design thoughts, rule, method, technique way, the characteristics of the design are r4 dit algorithm, pingpong ram design method and pipeline structure between stages. we also analyze the limited word length effect and the method to avoid overflow of the fixed points fft process, bring out the expandable platform mode

    第四章主要討論了高速高性能的快速傅立葉變換處理器的設計和實現，首先分析和比較了各種快速傅立葉變換演算法的特性和規律，提出基4蝶算的演算法具有最好的性價比，討論了順序、級聯、并行和陣列的處理結構，闡述了設計高速高性能快速傅立葉變換處理器時的設計原則、設計思路、所採用的技術路線，驗證並測試fft處理器，分析了定點fft處理過程由於有限字長效應所產生的量化誤差的范圍及防溢出控制辦法，提出了可擴展平臺模式。
  15. Chapter 4 : the influence of different phase - shifting angle of reference wave in recording, of the phase - shifting error and of the quantization error on the quality of the reconstructed image is investigated respectively in two - step phase - shifting inline digital holography. and an effective method of eliminating the phase - shifting error is presented, in which the summation of the intensity bit errors of the reconstructed image is taken as an evaluation function for an iterative algorithm to find the exact phase - shifting value. the feasibility of this method is demonstrated by computer simulation

    通過數值分析不同相移角的選取對再現像的強度誤差的影響，發現再現像強度誤差依賴于記錄時相移角的選取，當相移角在一定范圍內，其再現像的強度誤差相對較小；提出了一種有效消除相移誤差的新方法，並將其應用於二步同軸相移數字全息，對此進行了計算機模擬，得到了很好的結果，證明該方法對于相移誤差的消除是很有效的；對量化誤差所作的數值模擬發現，當信號被量化成8比特（ bit ） ，即256個灰度級以上，量化噪聲的影響相對較小。
  16. Abstract : the paper proposes a mathematical model of a / d converter with quantizing error, nonlinearity and differential nonlinearity errors for computer simulation, and based on the model, the errors caused by voltage change, current change and phase change in the power measurement are analyzed by computer simulation for both the asynchronous and quasi - synchronous sampling algorithms

    文摘:本文提出了具有量化誤差、非線性誤差和微分非線性誤差的a / d轉換器的數學模型，在該數學模型的基礎上，模擬分析了非同步采樣法、準同步采樣遞推演算法各種情況下的誤差，包括功率測量中電壓線性、電流線性、相位變化誤差及電壓測量的誤差。
  17. This algorithm adopts peak error or maximum amplitude error criterion to control the level of distortion in pipeline leak signals, and doesn ’ t change the subsequent location error of adaptive time - delay estimation in the case of a small quantization error, so as to implement the near - lossless compression of pipeline leak signals

    該近無損壓縮演算法設計了基於峰值誤差準則的量化方案對管道泄漏信號的失真度進行控制，在量化誤差較小時並不影響后續自適應時延估計的定位誤差，從而實現對管道泄漏信號的近似無損壓縮。
  18. The quantizing error, linear error and differential linear error of an a / d converter were deduced, after that the error model of synchronous sampling, asynchronous sampling and quasi - synchronous sampling algorithms used in power measurement were build in condition that a / d was not perfect

    推導了a / d量化誤差、非線性及微分非線性誤差的數學模型。然後，建立了采樣功率測量同步采樣演算法、非同步采樣演算法和準同步采樣演算法在非理想情況下的計算機模擬模型。
  19. We propose a color - spatial feature retrieval method based on color clustering, color clustering is introduced into color - spatial feature based retrieval method in order to decrease color quantization error, increase retrieval accuracy, and a new spatial color descriptor is proposed

    2 .提出了一種採用顏色聚類的顏色-空間檢索方法。為了減小顏色量化誤差，提高檢索精度，本方法將顏色聚類引入顏色-空間檢索，提出了一種新的空間顏色描述特徵。
  20. 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。
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