相位失真 的英文怎麼說

中文拼音 [xiāngwèishīzhēn]
相位失真 英文
phase distortion
  • : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
  • : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
  • : Ⅰ形容詞(真實) true; genuine; real Ⅱ副詞1 (的確; 實在) really; truly; indeed 2 (清楚確實) cl...
  • 相位 : phase position; phase
  1. Monitor apparatus can measure valid value of three phase voltage and current, power factor, three phase disequilibrium, instant flecker of short time and harmonic without twenty, degree and harmonic distortion total. the paper are laid on the following. ( 1 ) master plan and function of circuit, ( 2 ) hardware design including circuit and principle of a / d conversion, phase lock, liquid crystal display and keystroke and so on, ( 3 ) design of system software including digital filtering, fft, a / d conversion and monitor interface of pc, ( 4 ) system test

    監測儀能夠完成包括三電壓、三電流的有效值、功率因數、三不平衡、電壓短期閃變、以及20次內的諧波、諧波、諧波總量等的測量。論文重點介紹了以下幾部分: ( 1 )電路的總體設計和功能; ( 2 )硬體設計,包括a d轉換、鎖環、液晶顯示和按鍵輸入等原理和電路。 ( 3 )系統軟體設計,包括a d轉換、 fft 、數字濾波等程序的原理和演算法以及上機監控界面的設計; ( 4 )系統測試。
  2. Phase distortion correction

    相位失真校正
  3. As the uwb characteristics are represented at not only directional diagram and impedance bandwidth but also phase distortion

    由於超寬帶特性不僅僅體現在方向圖和阻抗的帶寬上,而且要考慮其相位失真
  4. Based on fractional sampling method, a new super - exponential iteration decision feedback blind equalization algorithm for severely nonlinear phase distortion channels was proposed

    因此針對嚴重頻率衰落和非線性相位失真通道,提出了一種分數采樣的混合盲均衡演算法,並獲得了較快的收斂速度和較小的剩餘均方誤差。
  5. Iir filters are a kind of digital filters with recursive structure and are primarily used for high data throughput applications that can tolerance phase distortion and require a sharp cut - off characteristic

    本文討論的iir濾波器是一種遞歸結構的數字濾波器,主要用於能夠容忍相位失真而要求具有良好的衰減特性的高數據處理量的系統中。
  6. It uses amplitude predistorter to recompose amplifier am / am characteristic and then to inverse, and uses phase predistorter to recompose am / pm characteristic

    該技術使用幅度預器擬合放大器的am / am特性並求逆,器擬合am / pm特性。
  7. First, resistance to geometrical distortion was obtained by using moment normalization ; second, we focus on the phase of fourier - mellin transform. before detecting watermark, synchronization could be retrieved by using the phase information. to eliminate the influence of pixel value distortion generated during print / scan process, a dft - based robust watermark algorithm was designed, which could successfully detect watermark from a severe distorted image

    另一種思路是根據圖像經過旋轉、縮放、平移后,其傅立葉?梅林變換域只有受到影響的特點,從其中提取幾何信息,然後再進行應的補償,從而消除幾何的影響;對于列印掃描過程產生的像素值,本文也提出了一種基於dft的魯棒性演算法,能在較嚴重的圖像情況下,成功檢測水印。
  8. The predistortion, which aims at compensating for the nonlinear distortion caused by the power amplifier, has a good performance in eliminating the nonlinear distortion of am / am & am / pm, improving the aci and spectrum efficiency

    技術是針對射頻功率放大器非線性而提出的一種補償技術,可以有效消除由非線性造成的傳輸信號的幅度和相位失真,降低信號鄰道干擾( aci ) ,提高頻譜利用效率。
  9. Signal distortion includes three kinds of distortion : frequency, phase and waveform

    信號的分為頻率相位失真和波形等三種。
  10. When signals pass high power amplifier, they would be distorted in amplitude and phase, leading to spectrum spread and distortion of in - band signals, both of which would weaken performance of the whole system in turn

    在無線通信中,信號在通過高功率放大器時會產生幅度和相位失真,造成頻譜擴展以及帶內信號畸變,導致整個系統性能的降低。
  11. The circular monopole ultra - wideband antenna has not only the extremely wide band in frequency domain, but also stable phase center, which makes the antenna radiate and receive the short pulse signals without any distortion, and suitable for various ultra - wideband communication systems or the single antenna of other multi - frequency operating communication systems

    這種天線不僅具有極寬的阻抗帶寬,還擁有穩定的中心。這使得圓盤單極超寬帶天線可以不地收發時域短脈沖信號。所以該天線不僅適用於超寬帶通信中,還能夠作為復雜多頻工作系統的單一收發天線。
  12. Before more advanced lithography tool is produced, in order to use current tools to manufacture vdsm ic, reticle correction methods such as perturbing the shape ( via optical proximity correction ( opc ) ) or the phase ( via phase - shifting masks ( psm ) ) of transmitting aperture in the reticle are proposed by the industry

    在波長更小的光刻系統出現前,為了能利用現有設備解決集成電路的可製造性問題,工業界提出了對掩模作預(光學鄰近校正)和在掩模上加轉移模(移掩模)等的掩模校正方法。
  13. On the following, on the basis of formulas given above, three kinds of effects due to ionosphere are presented : image shift due to group delay which was caused by the difference between the group velocity and the velocity of light in the ionosphere ; image distortion due to ionospheric dispersion which can create second phase error of lfm signals ; the last, the phase perturbation caused by the irregularities of the ionosphere can reduce the coherent length and affect azimuthal resolution

    文中主要研究了電離層的三種影響:信號經過電離層傳播的群延遲引起的成像偏移;電離層的色散效應給線性調頻信號帶來二次誤差,導致圖像退化、;以及電離層的閃爍、湍流等不規則性引起的信號起伏。在此基礎上,比較分析了不同波段、帶寬條件下電離層的影響。
  14. Phase - modulated 3 step level inverters and its minimization of thd

    調制的三級電平階梯波逆變器及其總諧波度的最小化
  15. 9 malvar h s. low - complexity length - 4 transform and quantization with 16 - bit arithmetic. ftp : ftp. imtc - files. org jvt - experts 0109 san vceg - n44. doc. 10 gordon s, marpe d, wiegand t. simplified use of 8 8 transforms - proposal

    從與dct的角度分析該44變換與h . 264 mpeg - 4 avc中的44變換具有同的度,並且也可以通過加法和移實現整個變換過程,並且所有運算都能在16精度內完成。
  16. Considering the nonlinear difference of the gain and phase characteristic in solid state power amplifier ( sspa ), a parallel but imbalanced predistorting adjuster is used and the hardware cost can be reduced

    考慮到固態功率放大器( sspa )幅度和非線性特性的差異,該系統採用幅度和不平衡調節的射頻預結構,降低了硬體成本。
  17. The phasemeters will be calibrated by applying two digitally synthesized low distortion sine waves generated by the laboratory s phase angle standard

    本所將用本所角標準所提供的兩個數字合成低正弦波,對計進行校正。
  18. This paper introduces some practicable way of eta, presents the principle of each method and compares their virtues and shortcomings. among them, the vca ( voltage controlled amplify ) becomes prominent for its good characteristics, such as wide output dynamic range, low nonlinear distortion, flat amplitude - frequency characteristics, high amplitude resolution

    對衰減器的總體方案和實現方法作了全面的分析、並著重分析了電路設計和研製中的各個關鍵問題,如動態范圍,幅頻特性,特性,非線性等。
  19. As a result, the ultra - wideband antenna must be able to radiate and receive the short pulse signals without distortion, in other words, the ultra - wideband antenna has to own several octave impedance bandwidth or more, and stable phase center, which enables the ultra - wideband antenna to transmit and receive short pulse signals without distortion

    這就要求超寬帶天線具有輻射和接收時域短脈沖信號的能力,即擁有幾個甚至十幾個倍頻程的阻抗帶寬,同時天線應具有穩定的中心以保證不地收發短脈沖信號。
  20. Influence of frequency and wave distortion on the verification of phasemeter

    頻率和波形度變化在表檢定中的影響
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