CAJ | 학술논문

受信号遮挡或干扰影响，卫星导航在一些场所应用受限，而伪卫星作为一种简便易行效果显著的增强手段，在一定程度上可弥补其不足。通过对伪卫星增强卫星定位原理研究，从几何精度因子、接收机干信比着手，分析伪卫星增强卫星定位、抗干扰效果及伪卫星增强应用中注意的几个问题。仿真说明，只要通过合理布设伪卫星，可以有效改善卫星导航定位图形结构，提高导航定位精度和抗干扰能力。
수신호차당혹간우영향，위성도항재일사장소응용수한，이위위성작위일충간편역행효과현저적증강수단，재일정정도상가미보기불족。통과대위위성증강위성정위원리연구，종궤하정도인자、접수궤간신비착수，분석위위성증강위성정위、항간우효과급위위성증강응용중주의적궤개문제。방진설명，지요통과합리포설위위성，가이유효개선위성도항정위도형결구，제고도항정위정도화항간우능력。
As its signals are blocked or interfered ,satellite navigation is limited in some locations ,which can in a way be supplemented by pseudolites as an easy and effective means of augmentation .Through the study of the principles of pseudolite-augmented satellite positioning technology and starting with the GDOP and receiver jam-to-signal ratio ,the effec-tiveness of pseudolite-augmented satellite positioning and several issues for attention in the application of pseudolite augmen-ting are analyzed .The simulation shows that as long as the pseudolites are well arranged ,they can effectively improve the graphics fabric of the satellite positioning as well as its positioning precision and anti-jamming ability .