摘要
相位非线性误差是微波模块的一项重要指标,通过全面分析相位数据的特征,提出一种对相位数据进行拟合前翻转预处理,再利用最小二乘法进行直线拟合,从而计算出微波模块相位非线性误差的新型测量方法,该方法通过软件仿真实现,将这种计算方法运用于多种微波模块测试,实际测试结果在测试指标范围内。
Phase non-linear error is an important indicator of microwave module, through a comprehensive analysis of the characteristics of the phase data, proposes a flip pretreatment before the phase data fitting, uses the least square method for linear fitting, so as to calculate the microwave module phase new measuring method of non-linear error, the method is implemented through software simulation, the calcula- tion method used in a variety of microwave modules, the actual test results in the range of test index.
关键词
相位非线性误差
非线性误差
折点
数据翻转
最小二乘法
Phase Linear Error
Nonlinearity Error
Turning Point
Data Turnover
Least Square Method
