说明：  基于最小二乘法实现精确到采样点间的准确定时，性能远远高于双程测距方法实现的测距与定时。仿真表明此方法对于抗噪声和频偏具有很好的作用。代码联系我：wo.lmy@163.com
(Based on least square method to achieve precise sampling points of accurate timing between, performance is much higher than the round trip distance method and timing range. The simulation shows that the method of noise and frequency for partial has very good effect. Code contact me: wo.lmy@163.com)