基于北斗三号DGNSS/RDSS/INS的高性能轻量级导弹编队基线测量方法

在导弹编队基线测量是导弹集群攻击的前提下,针对导弹编队基线测量问题,提出了一种基于北斗三号DGNSS/RDSS/INS的高性能轻量级基线测量方法。以北斗RDSS区域短报文作为编队数传链路,基于北斗三号DGNSS/INS建立伪距单差观测模型,在GNSS信号连续正常或信号中断情况下,进行DGNSS与INS组合导航实现稳定的基线测量输出。仿真结果表明:在GNSS信号连续正常的观测历元中,DGNSS/INS组合导航可以实现稳定的基线测量输出。在GNSS信号中断20 s以内,DGNSS/INS组合导航在东向(E)、北向(N)的基线测量误差小于2.5 m(1σ),天向(U)的基线测量误差小于3.0 m(1σ)。与RTK 算法相比,伪距单差模型对算力的要求降低了70%~80%。

A Baseline Measurement Method of High Performance Lightweight Missile Formation Based on BDS-3 DGNSS/RDSS/INS

Missile formation baseline measurement is the premise of missile cluster attack.In view of the problems in missile formation baseline measurement, a high-performance lightweight baseline measurement method is proposed based on BDS-3 DGNSS/RDSS/INS.Taking the BDS RDSS short message as a formation data transmission link, a pseudo-range single-difference observation model is established based on the BDS-3 DGNSS/INS. Under conditions of continuous normal GNSS signal or signal interruption, the DGNSS and INS integrated navigation is capable of achieving a stable baseline measurement output.The simulation results show that the DGNSS/INS integrated navigation can achieve stable baseline measurement output in the observation epoch of continuous normal GNSS signal. With the GNSS signal interrupting in 20 seconds, the baseline measurement error of DGNSS/INS integrated navigation in the east (E) and north (N) directions is less than 2.5 m(1σ), and the baseline measurement error in the up (U) direction is less than 3.0 m (1σ). The requirement of pseudo-range single-difference model is reduced by 70%~80% compared with the RTK algorithm.