offset error

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 base of Elastic Mechanics, theory of offset error is founded through analyzing the main origin of error and its amenability in the course of experiment.

通过分析模拟试验过程中的主要误差来源及其可控性，以弹性力学为基础，建立了相似材料模拟试验的误差补偿理论。

Two errors of bandgap voltage are analyzed: temperature error and the offset of operational amplifiers.

分析了基准电压源两个误差: 温度误差、运算放大器失调.

For high-resolution converters, the reference-offset error is usually greater than the ADC-offset error, particularly over temperature.

对 高分辨率 转换器, 基准电压偏置误差通常比ADC偏置误差大, 特别在过温度状态.

Full offset stack may reduce seismic resolution, because of lower frequency of far offset than that of near offset in raw seismic data, NMO stretching and velocity error.

受原始记录远道频率低于近道频率、动校拉伸、速度误差等因素的影响，满覆盖叠加降低了地震剖面的分辨率。

The algorithm uses observation window in order to reduce the frequency offset error, in which average of every frequency offset estimation values of three symbols is obtained during frequency offset estimation.

改进的算法对连续三个符号进行ML估计，在进行频偏估计时，通过使用观察窗，在窗口内对频偏估计值进行均值运算，对频偏估计值误差进行矫正。