CAJ | 학술논문

为满足机载精确制导弹药小型化、高可靠性方面的要求，设计了一体化闭环光纤惯导/GNSS紧凑型组合导航系统，该样机基于DSP C6747+FPGA浅并行架构，运用自适应卡尔曼滤波算法实现组合导航系统的信息融合，样机整体尺寸为13 cm×14 cm×12 cm。为验证系统性能，搭建了弹载组合导航半实物仿真平台，通过计算机仿真模拟目标信息和炸弹飞行全过程，分析了在组合导航系统辅助下制导炸弹对目标的打击精度，最后对样机进行了地面跑车试验的考核。半实物仿真与地面跑车试验结果表明，该组合导航系统具有较好的实时性和稳定性，导航精度满足精确打击的要求。
위만족궤재정학제도탄약소형화、고가고성방면적요구，설계료일체화폐배광섬관도/GNSS긴주형조합도항계통，해양궤기우DSP C6747+FPGA천병행가구，운용자괄응잡이만려파산법실현조합도항계통적신식융합，양궤정체척촌위13 cm×14 cm×12 cm。위험증계통성능，탑건료탄재조합도항반실물방진평태，통과계산궤방진모의목표신식화작탄비행전과정，분석료재조합도항계통보조하제도작탄대목표적타격정도，최후대양궤진행료지면포차시험적고핵。반실물방진여지면포차시험결과표명，해조합도항계통구유교호적실시성화은정성，도항정도만족정학타격적요구。
To satisfy the requirements of miniaturization and high reliability for airborne precision guided munitions, a compact close-loop FOG IMU/GNSS integrated navigation system is designed based on DSP C6747+FPGA shallow-parallel architecture. An adaptive Kalman filter is designed for information fusion, and the principle prototype’s overall size is 13 cm×14 cm×12 cm. A hardware-in-loop simulation scheme is designed for analyzing the integrated navigation system performance through computer simulation of target information and flight course. The simulation and ground test results show that the integrated navigation system offers better stability and real-time performance, and its accuracy meets the requirement for precision strike.