TY - GEN
T1 - Automatic positioning of spinning projectile in trajectory correction fuze via GPS/IMU integration
AU - Xiao, Hongbing
AU - Li, Shiyi
AU - Shen, Qiang
AU - Li, Huquan
AU - Wang, Qin
PY - 2007
Y1 - 2007
N2 - In this paper, an automatic positioning system for spinning projectile in trajectory correction fuze is described in detail. Aiming at the characteristics of spinning, this system is designed through integration of GPS (Global Positioning System) and IMU (Inertial Measurement Unit). Compared with general projectiles, the signals from spinning projectile are modulated by rotation. Therefore, how to obtain valid signals from the rotation modulated ones is a key problem. With the special rotation tracking loop, GPS module in this system can demodulate the rotation-modulated signals and thus provide correct position information. This part of design is based on SDR (Software Defined Radio) and FPGA (Field Programable Gate Array) means in order to speed it up and get a small size. Meanwhile, IMU module including several accelerometers provides attitude information which gives aiding signals to GPS section for rotation demodulation. Via the integration of IMU and GPS in fuze, the system can realize automatic positioning and trajectory correction. Accordingly, the device is suitable for dynamic conditions of high G-forces and vibration and spinning rate experienced frequently by these applications. Besides, due to its advantages of low-cost and flexibility it can adapt itself to different satellite navigation systems easily.
AB - In this paper, an automatic positioning system for spinning projectile in trajectory correction fuze is described in detail. Aiming at the characteristics of spinning, this system is designed through integration of GPS (Global Positioning System) and IMU (Inertial Measurement Unit). Compared with general projectiles, the signals from spinning projectile are modulated by rotation. Therefore, how to obtain valid signals from the rotation modulated ones is a key problem. With the special rotation tracking loop, GPS module in this system can demodulate the rotation-modulated signals and thus provide correct position information. This part of design is based on SDR (Software Defined Radio) and FPGA (Field Programable Gate Array) means in order to speed it up and get a small size. Meanwhile, IMU module including several accelerometers provides attitude information which gives aiding signals to GPS section for rotation demodulation. Via the integration of IMU and GPS in fuze, the system can realize automatic positioning and trajectory correction. Accordingly, the device is suitable for dynamic conditions of high G-forces and vibration and spinning rate experienced frequently by these applications. Besides, due to its advantages of low-cost and flexibility it can adapt itself to different satellite navigation systems easily.
KW - Automatic positioning
KW - Global positioning system
KW - Inertial measurement unit
KW - Spinning projectile
KW - Trajectory correction fuze
UR - http://www.scopus.com/inward/record.url?scp=37049024745&partnerID=8YFLogxK
U2 - 10.1109/ICMA.2007.4303632
DO - 10.1109/ICMA.2007.4303632
M3 - Conference contribution
AN - SCOPUS:37049024745
SN - 1424408288
SN - 9781424408283
T3 - Proceedings of the 2007 IEEE International Conference on Mechatronics and Automation, ICMA 2007
SP - 717
EP - 722
BT - Proceedings of the 2007 IEEE International Conference on Mechatronics and Automation, ICMA 2007
T2 - 2007 IEEE International Conference on Mechatronics and Automation, ICMA 2007
Y2 - 5 August 2007 through 8 August 2007
ER -