电磁兼容设计对多星协同定位精度的影响分析

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中图分类号：TN97;V474.2 文献标志码：A

Abstract： The complex electromagnetic environment in the low-frequency bands of the satelite platform elevates the noise floor of electronic reconnaissance receivers，thereby affecting the time-difference measurement in multi-satelite positioning systems and ultimately degrading the overall positioning accuracy.A detailed analysis of the effect of the satellite platform’slow-frequency bands electromagnetic environment on positioning accuracy is presented，their impact on time-diference measurement accuracy and positioning accuracy is quantitatively calculated，and a preliminary discussion on potential improvement approaches is provided.

Key words：electromagnetic environment; passive localization; positioning accuracy impact

0 引言

典型的无源定位技术体制主要包括方向测量定位、到达时间差（TDOA）定位、到达频率差（FDOA）定位以及TDOA/FDOA联合定位等。（剩余4562字）