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三角法测距的原理公式中因变量、自变量及系统结构参数之间具有非线性关系，并且在系统结构确定之后，距离越远，单位距离变化在接收器件上的对应变化量越小，即测量分辨精度越低，测量精度与测量范围之间存在矛盾。通过采用一种新的距离分段的改进三角测距法，使远近距离都有一个比较适中的测量精度，较好地解决了测量精度与测量范围之间的矛盾。并给出其应用实例。
There is a nonlinear relationship between the dependent variable, the independent variable and the system structure parameter in the principle formula of triangular distance measurement. And after the system structure is determined, the farther the distance is, the smaller the corresponding change of the unit distance change on the receiving device is, namely, The lower the resolution of the measurement, the contradiction between the measurement accuracy and the measurement range. By adopting a new distance triangulation improved distance triangulation method, so that there is a more moderate and far distance measurement accuracy, a better solution to the measurement accuracy and measurement of the conflict between the scope. And gives its application examples.