增益误差
- 网络gain error;gain drift
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对几种系统误差进行了模拟分析。流水线结构ADC的系统误差主要是:增益误差、子ADC误差和子DAC误差。
A few system errors that are gain error , sub ADC error and sub DAC error etc are simulated and analyzed .
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首先,利用Matlab进行ADC系统级仿真。验证失调电压、运放增益误差对级转换电路的输出范围的影响;
In the simulation of system level with Matlab tool , the paper discusses the influence of offset voltage and gain error to output range of pipelined stages .
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一种时间交叉采样ADC失调与增益误差校准方案
Calibration of Offset and Gain Mismatches in Time-Interleaved AD Converters
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论文提出了一种用于multi-bit流水级的数字后台增益误差校正方法。
A digital backend gain calibration method for multi-bit stages is proposed .
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而I、Q通道间的增益误差和相位误差会造成镜像干扰,影响系统性能。
But any gain error or phase error between in-phase ( I ) path and quadrature phase ( Q ) path in the system will cause hermitian image interference and degrade the performance of the system .
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该装置采用组合放大器和组合DAC技术构成24bits标准DAC,使之具有很小的微分线性误差、积分线性误差、零点误差和增益误差。
The technology of combined feed back amplifiers and combined DAC for building the 24 bits standard DAC used in the system make it have high accuracy , very small differential linearity error , very small drift and amplitude error .
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利用所提出的测试架构测试并计算了DAC的四个静态参数:偏移误差、增益误差、差分非线性误差和积分非线性误差,使其测试的精度在0.20LSB以下。
Without a large number of precision reference voltages and with the consideration of matching problems , a BIST approach is proposed to test the parameters of DAC , which includes offset error , gain error , differential nonlinearity error , and integral nonlinearity error .
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方案已投运现场。采样-保持电路中的一种增益误差自校正方法
A Kind of Gain Error Correction Scheme for Sample-and - Hold Circuits
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通道失配误差包括偏置误差、增益误差和时间误差。
Channel mismatches errors include offset error , gain error and time error .
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一种有效的增益误差校准方法
An Effective Method for Gain Error Calibration
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并且采用增益误差校正技术和比较器数字校正技术这两种校正技术。
And applied gain error correct technology and comparator digital correct technology to the architecture .
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我们首先讨论了由直流偏差所引起的扰动,又分析了两电流相间的增益误差。Y向偏差
Firstly , the ripples generated by the offset currents are discussed . Errors in Y axis
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考虑执行器的增益误差模型,提出了执行器增益误差的容忍区间,容忍因子和硬件冗余度的概念。
Concepts of tolerate interval , tolerate factor of actuator gain error and hardware redundancy rate are presented .
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偏置误差和增益误差的消除相对简单,而时间相位误差的修正非常困难。
The offset and gain error correction are relatively simple , but the time-skew error correction is very difficult .
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自动校准方案也可以被扩展用来校准系统零点偏置和输入通道中的增益误差。
The self-calibration scheme can also be extended to null system offset and gain errors in the input channel .
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研究了对流水线模数转换器级间增益误差进行补偿的数字域自校正算法,提出了一种适用于数字域自校正的改进的流水线结构。
A new digitally self-calibration algorithm was investigated to compensate interstage gain errors in pipeline analog digital converter ( ADC ) .
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针对由状态反馈控制器构成的闭环系统,本文分析了执行器各通道增益误差与保性能指标之间的关系。
This paper analyses the relationship between actuator gain error of each channel and guaranteed cost for closed-loop systems with state feedback controllers .
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提出一种正交采样系统误差测量计算方法。该方法是在接收机中放级注入相参测试信号,用正交采样输出的零中频数据直接计算出相对增益误差,相位误差和A/D变换器的直流偏移。
A method is presented for computing relative gain and phase errors , and bias errors of quadrature sampling system using coherent testing signal .
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通过引入积分型变结构切换函数及高增益误差观测器,基于李雅普诺夫稳定性理论,证明了闭环系统是全局稳定的,输出跟踪误差都收敛到零。
By introducing integral variable structure and high gain observer , the closed-loop control systems is shown to be globally stable in terms of Lyapunov theory , with tracking error converging to zero .
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该系统软件包括了仪器软面板、相位噪声提取和采集的自适应控制、频谱估计、自适应误差校正(还包括对噪声信道的增益误差校正)、结果数据的显示与输出处理等。
Phase noise extracting and acquiring self-adaptive controlling module , spectrum estimation module , self-adaptive error compensation ( including error compensation of amplifier gain of noise channel ) module , data displaying and outputting module .
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此后,通过对测量系正交和增益误差问题建模,采用浮点编码遗传算法设计解决该问题的新方法,以数字仿真验证了该方法的可行性。
Afterwards , using real coded genetic algorithm , a new method was designed that could solve the problem of orthogonal error and gain error in measuring system from the problem modeling . Digital simulation verified the feasibility of this method .
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为缩短整定时间,减少整定参数的数量,不同增益,误差E的模糊论域划分各不相同。
Different gains have different fuzzy fields of error E to save tuning time and reduce the number of rules .
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定量地分析了成像处理器增益计算误差对SAR系统辐射定标精度的影响。
A quantitative conclusion on the contribution of imaging processor gain to SAR radiometric calibration error is obtained .
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本文对一种改善ADC非线性误差的数字校准算法进行了研究。在Matlab中进行了行为级仿真,评估了这种方法对增益非线性误差的校准效果。
A digital calibration algorithm is studied in this paper , the behavioral simulation is done by matlab , and the evaluation results are showed .
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本文主要阐述毫米波双频段(Ka/Ku)单脉冲天线增益测量误差。
Mainly covered in this paper is the gain measurement error of dual-band ( Ka / Ku ) monopulse millimetre wave antenna .
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3dB和10dB带宽法测量天线增益的误差分析
Error Analysis on Antenna Gain Measurement with 3 dB and 10 dB Bandwidth Method
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根据MIT自适应调节规律,建立自适应调节模块,使补偿信号的增益随着误差能够进行微调,进一步提高补偿精度。
According to the law of MIT self adaptive adjustment , the self adaptive adjustment module is established to perform slight adjustments to the gain of the compensation signal and further improve the compensation precision .
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毫米波双频段天线增益测量误差及讨论
Analysis and Discussion on Gain Measurement Error of Dual-Band Monopulse Millimetre Wave Antenna
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以无线通信为例,目前大部分仿真数据误差的主要来源于天线增益的误差及传播模型计算上的误差。
Wireless communication , for example , most of the simulation data error comes mainly from the antenna gain of the error propagation model calculation error .
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CNC系统的伺服增益与轮廓误差
CNC System Velocity Gains and Contour Errors