Method for accurate distance measurement of millimeter wave radar

The invention discloses a method for realizing accurate distance measurement by using a millimeter wave radar. The method is used for realizing accurate distance measurement under the condition that the installed radar plate shakes in case of outdoor strong wind. According to the method, the measurement mode of the cylindrical lens and the single antenna is adopted, the beam angle is reduced, and measurement is more accurate. Meanwhile, the frequency of FFT is increased in the aspect of software, FFT is carried out on each pulse in each time interval, then spectral line numbers are counted, a part of unnecessary data is removed, and secondary processing is carried out on the remaining values, specifically, firstly, the values left after removal are subdivided, then secondary screening and refining are carried out on subdivided results, and finally, the final value is obtained. And finally obtaining an accurate value to realize the distance measurement of the material level. 本发明公开了一种使用毫米波雷达实现准确测距的方法；该方法用于在室外大风