quadrature error
英
美
网络 正交性误差
双语例句
- Detection and Compensation of Amplitude Error and Quadrature Error for Inductosyn
感应同步器的幅值误差和正交误差的检测与补偿 - The reasons for inducing quadrature error and offset error are analyzed and the expressions of quadrature error and offset error are induced.
分析了正交误差和失调误差产生的原因，推导了正交误差和失调误差的表达式。 - For high order QAM ( Quadrature Amplitude Modulation) signals, the residual square error of CMA ( Constant Modulus Algorithm) is unacceptably large and the convergence rate of MMA ( Multi Modulus Algorithm) is too slow.
对于高阶QAM信号，常数模算法的收敛误差不为零，而多模算法的收敛速度慢。 - The results of analysis show the error signals include the quadrature error and the error signals in phase with the useful signal.
分析结果表明，这些误差信号包含了正交耦合误差和与有用信号同相位的误差信号。 - It uses a delay locked loop ( DLL) with a proposed quadrature phase detector to greatly reduce the phase error.
这种方法基于一个采用提出的正交相位检测器的延迟锁定环路来大大减小正交相位误差。 - The analytic results indicated that, the ratio of quadrature error and sense signal of the former is bigger than the latter's in the same condition.
分析表明，在相同情况下，前者的正交信号要远大于后者。 - Due to polarization mixing when polarizing beam splitters ( PBS) are employed in 4-channel quadrature detector system the extra error increases in the measurement.
当使用偏振分光镜的四通道信号接收系统时，由于偏振混合现象，在信号接收的过程中会增加额外的误差。 - We found the method had three primary errors: the error that is caused by speckle of laser interference system, the error that is caused by mixing in quadrature demodulation, and the error that is caused by the cosine fringe distortion in the structure light.
正交解调算法中混频频率所引入的误差，结构光中余弦条纹形变造成的误差。 - Quadrature and finite element error expansions on isoparametric quadrilateral meshes
四边形等参元的数值求积和有限元误差展式 - In this paper, the obvious form of Romberg's quadrature formula and the error equation is presented.
在这里将给出Romberg求积公式的显示形式和误差等式。 - The authors give a new quadrature formula and error estimates for numerical integration of functions in E~ α_s ( c) over the unit cube in s dimensions.
给出了函数类Eαs（c）中的函数在s维单位立方体上的数值积分的新型求积公式及其误差估计。 - The Composite Newton-Cotes Quadrature Formulas and Their Error Estimates
复化Newton-Cotes积分公式及其误差估计 - The mechanical coupling error between drive mode and detection mode is analyzed, and the analysis shows that the quadrature error have a big influence on detecting precision.
对微机械陀螺中存在的机械耦合误差进行了分析，并通过计算指出在现有的工艺条件下，正交误差和寄生振动对微机械陀螺的检测分辨率和灵敏度影响较大且难以消除。 - In this paper, error of quadrature vector detector used in direct converting receiver is analyzed and performance deterioration caused by gain error, phase error, local oscillation leak or DC offset on receiver's inphase and quadrature channels is discussed.
本文对直接变频接收机中正交矢量检测法进行了误差分析，讨论了由于接收机同相与正交两支路的增益差异、相位误差、本振泄漏及直流偏置导致其性能恶化的结果。 - On the basis, the ratio of quadrature error and sense signal are induced when the the principal axes of elasticity of outer-frame and inner-frame rotates a little angle separately.
在此基础上，利用弹性主轴原理，推导了内外框弹性主轴偏转产生正交信号与敏感信号的比值表达式。 - The air damping, quadrature error, parasite Coriolis force and interference from axial accelerations are also discussed.
讨论了微机械陀螺中的空气阻尼、正交误差、寄生Coriolis力以及轴向加速度干扰等问题。 - In this paper, based on least square method and matrix theory upbuild a quadrature least square method of parallelism error assess.
基于最小二乘法和矩阵理论建立了平面度误差评定的正交最小二乘法。 - We introduced a new and simple proof of the classical SIMPSON quadrature formula which is frequently applied in calculating definite integrals and best estimation of error is obtained.
对于定积分近似计算中常使用的经典SIMPSON求积公式介绍一种新的简洁的证明方法并给出误差的最佳估计。 - The results of both the simulation and experiment demonstrate that this quadrature sampling method can greatly reduce the error of the measuring system and also make the system easy to implement.
仿真和实验结果表明，正交采样法能够消除模拟解调所带来的误差.这种方法既提高了相位检测精度，也保证系统容易实现。 - The errors include quadrature phase shift error, unequal amplitude error, zero offsets and the third harmonic. As a result, corresponded digital compensation methods are proposed.
然后根据误差来源进行数字补偿，通过对软件数字细分原理的分析，推导出了原始信号不正交、幅值不等、谐波失真等误差影响细分结果的表达式，并提出了与此相对应的数字补偿方法。 - Theoretical analysis shows that the advantage of the quadrature multiplication method over the conventional methods lies in that it can markedly reduce the error in the frequency characteristics of the rejection band, so that it can extend the measurable extent of the rejection-band attenuation.
理论分析表明，正交乘积法比传统方法能显著减小测量阻带频率特性时的误差，扩展阻带衰减的可测范围。 - Through reform the modulating function of the winding to set up the mathematic model, by which it analyses and calculate the layer coefficient, quadrature error, electrical error.
通过改造绕组调制函数所建立的数学模型分析计算绕组的分层系数、正交误差和电气误差。 - The trapezoidal rule is adopted for the quadrature of the memory term and the quadrature error is estimated.
对于记忆项的数值积分，采用了梯形公式与矩形公式结合的方法，并估计了数值积分的影响。 - Research on Methods for Measuring Quadrature Error of I/ Q Bichannel
I/Q双通道正交误差测量方法的研究 - A method for capturing the IQ data using Spectrum Analyzer is put forward. The actual quadrature modulator is modeled. A method for compensating linear error is given, and experimental results demonstrate the effectiveness of the method.
提出了使用频谱仪测试信号基带IQ数据的方法，建立了实际系统中正交调制器的多项式模型，并给出了一种补偿正交调制器线性误差的方法，实验证明该方法是正确的。 - This dissertation researches the theories of directly IF sample and digital quadrature coherent detection. Firstly, the dissertation introduces the problem of the conventional receivers, and analyses the relation between the error of amplitude and phase and mirror frequency.
本论文对直接中频采样及数字相干检波进行了研究，首先介绍了传统接收机原理以及其存在的问题，分析了幅相误差与镜频抑制比的关系。