了解单频激光干涉仪的非线性误差，使用matlab软件工具对提出的非线性误差修正方法进行验证，在交流幅度偏差中，用matlab仿真交流幅值比g与相位最大误差的关系曲线对测量的影响进行分析。-Understanding single-frequency laser interferometer nonlinearity error, the use of matlab software tools for the proposed non-linear error correction method to validate the magnitude of the deviation in the exchange, the exchange with the matlab simulation curve g amplitude ratio and phase error on the measurement of the maximum Effect analysis.