The radio wave refraction correction for improving the accuracy of GPS navigation and location is necessary.
因此要提高GPS的定位导航精度，就必须进行电波折射修正。
The radio wave refraction correction for improving the accuracy of radio location in necessary.
因此要提高无线电定位的精度，就必须进行电波折射修正。
For improving targets location accuracy and fully utilizing redundant information in complex bistatic radar systems, a new target location algorithm based on Gauss-Newton iterative is proposed.
为了提高复合双基地雷达系统对目标的定位精度，以及充分利用冗余信息，提出了基于高斯·牛顿算法的空间目标定位算法。
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