On the basis of narrating the range finding principle for the LFMCW level radar,the reflection of the range finding precision for the non-linearity of the VCO is analyzed,a method of the nonlinear compensation is presented.

• 在LFMCW液面雷达测距原理的基础上 ,分析了压控振荡器 (VCO)的非线性对测距精度的影响 ,提出一种VCO的非线性补偿方法。