校準信號 的英文怎麼說
中文拼音 [jiàozhǔnxìnháo]
校準信號
英文
calibrate signal-
The assembly language program collects and processes the data real time. comparing kinds of method of filter and arithmetic of fft, the author select the fir filter to realize pretreatment of signal and radix - 2 fft to distill the characters of librations
通過對各種濾波方法和fft演算法進行比較，本套數據檢測和校準處理系統採用fir濾波對採集到的信號進行預處理，利用基2fft演算法來提取信號的頻率特徵。In the digital inverter, we adopt the technology of digital dynamic waveform correction, which can compensate the delay between control signal and output waveform, and ensure the accuracy of control. at the same time, the technology of digital dc component adjustment was introduced, by which we can exactly compensate the control signal, and realize adjusting dc component of output on the premise of output performance
在基於dsp的數字變換器平臺中，採用全數字波形校正技術，完全補償了控制信號延時、功率管開關延時以及死區時間對輸出spwm波形所產生的畸變，充分保障了變換器控制的準確性；採用數字直流分量調節技術，可以精確地對控制信號進行補償，在充分保證輸出性能的前提下，實現了輸出直流分量的調節。The basic calibration of a rf signal generator normally includes tests on output level accuracy, level flatness, and frequency accuracy
射頻信號發生器的基本校正工作一般包括測試輸出電平準確度、電平不平坦度及頻率準確度。Analysis of the transition time of step - function signals in the dynamic calibration of systems
系統動態校準中輸入階躍信號過渡時間參數分析Gps is a planet wireless conductance system which is global and all - weather, gps can offer high precision time orientation information to infinite user, clock precision reachs 10 ? 6 magnitude 。 not only changes traditional time method of quartz crystal clock, but also replaces wireless shortwave and even more lowfrequency signal and tv signal whose overlay range is limited and low precision, offers advantage to geology field task, achieve automatization and high precision of seismic flow observation
利用gps授時信號全方位、全天候、連續性、實時性和高精度的特點，以gps信號為基準來校準本地時鐘（晶體振蕩時鐘或原子鐘） ，將gps接收機輸出信號的長期穩定度和恆溫晶振的短期穩定度相結合，應用大規模可編程邏輯器件，設計和實現了由pc104控制的實時在線授時系統。The method using square wave excitation presented by the paper is verified by theories and experiments that the method meets the requirement of accuracy, and this method ' s application simplifies manipulations and improve greatly the calibration efficiency
其中本文提出的方波信號激勵的比較校準法，理論和實驗證明不僅滿足校準精度要求，而且簡化操作，大大提高了校準的效率。In view of predecessors " research achievements we put forward a method using square wave excitation and the fast furrier transformation ( fft ) to realize the comparison calibration for the calibration system of piezoelectric accelerometer
在吸收前人研究成果的基礎上，文中提出了工作用壓電加速度傳感器校準系統應用方波信號激勵，同時應用快速傅立葉變換（ fft ）的方法來實現比較法校準。Signal generator calibrator
信號發生校準儀A resolution method in software is applied to calibrate zero point and full scale of the circuit. software approach to nonlinear correction for sensor and circuit is presented. therefore system error is eliminated, and measurement accuracy of temperature is improved. the signal of acidity electrode is detected by a differential amplifier circuit, which consists of operational amplifiers tlc2254 with high input impedance and low drift
採用橋路和單運放差動放大電路對溫度傳感器信號檢測放大，軟體校正溫度傳感器和測量電路的非線性，軟體校準測量電路的零點和滿度，消除測量電路的系統誤差，提高補償溫度的測量精度；採用高阻、低漂移運放tlc2254組成高阻差動放大電路用於酸度電極信號測量。Based on the theory of charge calibration and sample and reconstruction of frequency limited signal, the scheme of adopting direct digital synthesizing technology and technology of computer is put forward in the paper. the design of hardware and software is described in detail, the error of the outputs signals of the high precision charge calibrator has been analyzed in theory
文中基於電荷校準的原理及帶限信號的抽樣與重構理論，提出了採用直接數字合成技術與計算機技術的整體設計方案，詳細講述了硬體電路與系統軟體的設計過程，並對高精度電荷校準儀輸出信號的誤差進行了理論分析。The signal strength necessary for the switching operation and thus the switching point can be adjusted precisely via adjustments in the electronics ; in principle the switching and reset point can be adjusted separately
開關操作所需的信號強度換句話說開關點可以通過電子調節器精確校準開關點和復位點可以分別進行調較。In this dissertation, researching from the basic concept of large signal network analysis, we discuss the measurement theory and technology of rf network nonlinearity and the characterization technology of intermodulation distortion in detail, and analyse some nonlinear characteristic excited with a one tone or multi - tone, such as am - am, harmonic distortion, intermodulation distortion, adjacent channel power ratio and how to qualitatively analyse nonlinearity of rf network to make the measurement and calibration
本課題從大信號網路分析的基本概念出發，詳細討論了射頻網路非線性的測量理論和技術以及互調失真表徵技術，分析了在單頻音和多頻音信號激勵下的一些非線性特性，如am - am ， am - pm ，諧波失真，互調失真（ imd ）和臨近通道功率比（ acpr ）等，以及根據包絡域方法定性地分析射頻微波網路的非線性特性，以此來進行射頻網路的非線性測量和校準。That test part of the software is primarily used to complete the test of some parameters, such as time base, time - expand, time interval, voltage interval, vertical, stable state, transient state and scanning linearity. the result of the test needs to be analyzed and judged. clear user interface and timely warnings for mistakes of testing process inside because of the user ' s fault operating make whole test process more easier than it did on a time
該軟體的測試部分主要用於完成對示波器掃描時間系數、擴展掃描時間系數、 t時間測量、 v電壓測量、垂直偏轉系數、頻帶寬度、校準信號、脈沖瞬態響應、掃描線性誤差時等參數的測試檢定任務，並對測試結果進行及時的分析和判斷，由於界面清晰，而且對測試過程中由於用戶的誤操作都有及時的錯誤提示，使得整個測試過程簡單易行，對于用戶來講掌握起來也更為方便些。The system can simulate the transfer process of photo - thermal and thermal - electric at a given parameter setting of structure, environment and circuit. on the basis of circuit structure, the calibration, parameter adjusting and signal readout can be simulated, the vary process of readout circuit, readout voltage, optical gain, optical gain rate, and uniformity can be given. in addition, all kinds of character parameters of device can be forecasted
本論文根據umbirfpa的原理，建立它的軟體模擬系統，它可以根據給定的結構、環境、電路設置等參數首先模擬光熱、熱電轉換過程，並可根據電路結構，模擬校準、參數調節並讀出信號，給出讀出電流和電壓、光學增益、光學增益比、非均勻性等各特徵量的定量變化過程，預測製成后器件的各種性能參數。Aees employs the multi - staged digital filter algorithm to reduce random error. meanwile, the system correct zero deviation through linear opreation. the instrument, from hardware aspect increases the feature of anti - interference by the way of reasonable layout, sepration of digital and analogue
系統採用了中值濾波和滑動平均濾波相結合的多級數字濾波演算法來減小隨機誤差，並以精密基準電壓作為比較信號的輸入，由智能系統通過線性運算，實時地修正、校準測量數據，減小系統的零漂，實現自動定標並提高測量的精度。If signal not pre - distorted, the variable capacity cv1 enables to correct the inclination of the transmitted pass band
以未預失真條件信號、這個同樣的標準，可變電容cv1賦予權利去校正已傳輸通道波段的傾斜度。An approach of two point temperature correction parameter compensation is presented in this paper, it can compensate the parameter accuracy according to the real - time signal dynamic range, the parameter can be modified near to its theoretical value
文中探索了一種二次參數補償的兩點溫度定標方案，由基本公式得到的校準參數值，再依據現實信號動態范圍進行實時精度補償，使之更加接近於理論計算值，從而使非均勻性校準的系數精度得到較大幅度提高。This thesis elaborates a self - developed measuring equipment for pulse oximetry. this unit can output the standard oximetry test signal comparatively with difference sensors of the tested pulse oximetry, include pulse rate, peep and oxygen saturation
所述脈搏血氧儀校準裝置，它能產生一個與被檢脈搏血氧儀傳感器類型相對應的標準血氧測試信號，包括脈率、脈沖幅度和血氧飽和度。In practical application, due to the parameter accuracy of two point temperature correction is limited by readout circuit noise 、 dynamic range 、 analogue to digital converter word length and calculating noise, the performance of focal plane array detector is not the performance it should be
目前實用性較好的兩點溫度定標法的校準系數精度受讀出噪聲、信號動態范圍、模數轉換字長和運算噪聲的限制，很難使焦平面探測器的空間殘留噪聲達到應有的精度。Digital beam forming ( dbf ) is a kind of new technique which based on the antenna beam forming and the well - developed digit signal processing. the technique should convenient obtains high resolution and low sub beam by sufficiently utilizing of the space message received by array antenna. and make the technology of beam scanning, self - calibrating and adaptive beam should be realized easily
數字波束形成（ dbf ）是在天線波束形成的基礎上，引入先進的數字信號處理方法后建立起來的一門新技術，這種技術可以充分利用陣列天線檢測到的空間信息，並易於獲得超解析度和低副瓣，實現波束掃描，自校準和自適應波束形成等。分享友人