low-pass filter 中文意思是什麼

low-pass filter 解釋
低通濾波器
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • pass : vi （passed passed past ）1 經過，通過；穿過；越過；超過；掠過；前進。2 （時間）流逝，推移；轉化...
  • filter : n 1 濾器，濾紙，過濾用料[砂、炭等]。2 【無線電】濾波器；【物理學】濾光鏡，濾色器。vt 過濾，用過濾...
  1. Delay line oscillator is composed of broadband amprifer adjustable attenuator and saw sensor device. after output signal of delay line oscillator is smoothed, it mixes with 109mhz local oscillation signal. its differential frequency signal is smoothed by low - pass filter trimmed by shaping circuit and processed by digital processing circuit

    延遲線振蕩器由寬帶放大器、可調衰減器和聲表面波質量傳感器件構成。延遲線振蕩器輸出信號經濾波后與109mhz的本機晶體振蕩器輸出信號相混頻，通過低通濾波取其差頻，並經整形後由數字信號處理電路處理。
  2. The character of radar system is restricted by parasitical am. to restrain parasitical am, a low pass filter is used in the if circuit. the result shows that the fmcw detecting range of the radar with the filter is greater than that without

    較大的vco寄生調幅對雷達的作用距離有嚴重影響，對此，本文進行了分析，並提出了一種在中頻電路中用濾波電路進行抑制由寄生調幅帶來的于擾信號的方法。
  3. In addition, a low - pass filter can be employed prior to the digital - to - analog ( d / a ) stage to smooth the stairstep effect resulting from the combination of a low sampling rate and quantization

    另外，在數模轉換（ d / a ）級前用低通濾波器可以平滑因低的抽樣頻率和量化造成的階梯效應。
  4. Based on legendre multinomial, a new kind of low pass filter prototype is designed out after analyzing the design rule and inefficiency of some classical filter prototypes

    摘要分析了幾種經典的濾波器原型設計原理及其自身不足，基於勒讓德多項式，給出了一種新的低通濾波器設汁原型。
  5. In order to test the robustness and imperceptivity of the algorithm, simulate experiments are carried out. the experimental results indicate that it is robust to the attack such as mp3 loss compression, low pass filter, resample and so on

    對所研究演算法的穩健性和不可感知性進行了模擬實驗，實驗結果表明本章提出的演算法對mp3壓縮、低通濾波、重采樣等攻擊有很強的魯棒性。
  6. Theory support is provided in this paper when platform parameters are designed. a fir low - pass filter is designed for the experiment following the criterion of maximal - error - minimization. the order and the impulse response sequence of the filter are presented in this paper

    本文運用最大誤差最小準則的優化設計方法設計出本試驗臺要用到的低通濾波器，給出了所設計濾波器的階數和濾波器單位響應序列，並畫出了該序列的幅頻響應特性曲線。
  7. After large numbers of emulation and prototype board experiments, the second version adds a 50hz notch filter and a two - stage low pass filter

    第二版在第一版的基礎上通過電路功能模擬、搭建原型板驗證，增加了50hz陷波濾波器和一個二階低通。
  8. In order to meet the requirement of phase - error and physical dimension, high - pass / low - pass filter phase shifter and solid - structure are applied in the design of if broad - band five - bit digital phase shifter

    考慮對相位誤差和物理尺寸的要求，中頻寬帶五位數字移相器採用高通/低通濾波器形式和立體結構進行設計。
  9. This dissertation focuses on the application of data fusion in two - phase flow regime identification. following is the main contribution of the dissertation. 1 ) based on quartile and first order differential, a new outlier detection algorithm is presented, experiments show that the method combining with low pass filter can remove gross error and unwanted frequency components

    本文的主要工作與創新點在於： 1 ）將分位數方法與一階差分法相結合，提出了一種基於一階差分的粗差剔除方法，該方法與低通濾波器的結合可以有效去除兩相流壓力波動信號中的粗大誤差以及信號頻帶以外的頻率成分。
  10. According to the characteristics of dtc ( direct torque control ) in induction machine, this paper analyzed the estimation error of flux linkage and torque, and introduced an improved method of flux estimation, a compensation method based on low - pass filter

    摘要根據感應電機直接轉矩控制的特點，對低速下磁鏈觀測誤差產生的原因進行了分析，給出了一種磁鏈觀測的改進方法低通濾波器補償法。
  11. Secondly the detection precision is only related to the synchronization phase but not to the amplitude of the mainline voltage because that it uses the optimized pulses synchronous with the mainline voltage as modulation signals. thirdly it decreases the requirement of the input low pass filter and eliminates the error resulting from the direct component and even harmonics of load current. the most significant merit is that it can eliminate the effect of a few low order odd harmonics and the detecting circuit is easy to be implemented

    模擬和實驗結果表明該方法的主要優點有：不需使用乘法器進行信號調制，調制信號採用與電網電壓同步的優化特定脈沖，其檢測精度只與同步相位有關，而與電網電壓幅值無關；降低了對輸入低通濾波器的通頻帶要求，直流和偶次諧波分量對檢測精度沒有影響；突出的優點是可以消除有限個低奇次諧波對檢測結果的影響。
  12. Analog synthesis often use low - pass filter to remove electronic audio generator generated by high - frequency noise

    模擬合成器常常使用低通濾波器來去除電子音頻發生器所產生的高頻噪聲。
  13. Then a low pass filter is designed to filter high - frequency noise in data. and smooth data again by means of central interpolation algorithm ; helicopter model with multi input single output are identified respectively in ls method and ml method

    （ 2 ）剔除並補正了飛行實驗數據中的野值；設計了一個低通濾波器來濾除數據中的高頻噪聲；用中心插值演算法對數據二次平滑。
  14. If input sigmal is supwrimpsed with high - frequency noise, use a low - pass filter in the input signal line

    若輸入信號伴隨高頻干擾，應在線里用高頻過濾器。
  15. Then the paper analyzes control system of hybrid active power filter, the way of harmonic detecting and the principle of control system, digital low pass filter and the generation of pwm, on the base of which the paper designs a new parallel hybrid active power filter which is controlled by tms320lf2407, and detailedly introduces drive circuit of pwm, sampling circuit of current, voltage adjustment and protection circuit, communication circuit, liquid crystal display circuit

    分析了混合型有源濾波器的控制系統、諧波檢測方法及控制原理、數字低通濾波器和pwm信號的產生，在此基礎上設計了一種基於tms320lf2407為控制核心的並聯混合型有源電力濾波器硬體原理圖。並對pwm驅動電路、電流采樣電路、電壓調整、按鍵輸入和保護電路、通信模塊、液晶顯示模塊進行了較詳細的分析說明。
  16. Based on the results of the theory analysis and computer simulation of suspended stripline low pass filter, band pass filter, the transition from waveguide to finline and the transition from waveguide to suspended stripline, the structure design and manufacture were made. the measured results match the requirement. different from the traditional mixers used in the domestic communications satellites, the sub - harmonic balance mixer type was used in the ka - band mixer design

    在ka頻段混頻器的研究過程中，通過對衛星和飛船所用到的混頻器進行研究，在對ka波段的傳統射頻前端電路的分析基礎上，提出改變以往星上傳統的基波混頻方案，採取了次諧波混頻方案，降低了本振頻率，簡化了本振鏈路，使噪聲特性、可靠性獲得改善。
  17. We select fpga of type xc3s200 as hardware to design the coder and display the hardware resources inside, moreover study the method and steps of designing dsp, based on fpga, by using system generator, finally, it emphasizes the design process of multi - band excitation vocoder. we can work out the module of high pass filter and the module of low pass filter, module of divide frame, module of keynote rough estimate, module of keynote fine estimate, module of band - separated v / u judgment / verdict and module of band - separated amplitude estimate, by using simulink, ise and system generator

    本文選用型號為xc3s200的fpga作為設計編碼器的核心硬體，介紹了其內部所含的硬體資源，並研究了利用systemgenerator基於fpga設計dsp的方法和步驟，最後，本文把重點放在多帶激勵語音編碼器的設計上，利用simulink ， ise和systemgenerator分別設計其中的高通低通濾波器模塊、分幀疊加模塊、基音粗估模塊、基音精細估計模塊、分帶v / u判決模塊、分帶幅度估計模塊。
  18. Transformers can reduce the bulk of the auxiliary power considerably by magnetics integration, for the primary axial fission winding can help integrate two transformers, and series connection with balancing reactor at the primary and with low - pass filter at the secondary can help integrate several magnetics

    變壓器的一次繞組軸向分裂，可實現兩臺變壓器集成;變壓器的漏抗必然存在，且在一次側與平衡電抗器串聯，在二次側與濾波電容串聯，可以實現幾種磁性器件的集成。因此，變壓器採取磁集成技術將大大降低輔助電源的體積。
  19. This approach is called fas. this approach uses characteristics of trigonometric function, respectively computes the amplitude of fundamental component and inactive power current separates them by low pass filter and acquires and inactive power current

    該方法利用三角函數的特性，對畸變電流中的基波成分和無功電流分量的振幅分別進行計算，然後經過低通濾波器把它們分離出來，最後得到基波有功和無功電流分量。
  20. Then the pulse is modulated by pwm. after the modulated signal through a low pass filter, we can get the change of the frequency that related to the capacitor

    對頻率變化的脈沖進行寬度調制，通過低通濾波就可以輸出頻率變化量，也就可以得到相應的加速度值。
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