针对F-P滤波器的非线性特性的影响，分析了设置波长参考的必要性并提出了具体方法。
A set of wavelength reference is involved in the system as calibration to correct non-ideal performance of the F-P filter.
测试中，当测试波前相对于参考波前的光程差是照明波长的整数倍时形成干涉条纹，由此而形成的二维图就是干涉图像。
Fringes are formed when the optical difference (OPD) between a reference wave front and a test wave front based on the interference of light is an integral multiple of the illuminating wavelength.
另外，本工作能为改装多波长雷达提供有益的理论参考。
Furthermore, this work can give essential theoretic references to remodeling multi-wavelength radar.
应用推荐