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首页> 外文期刊>IEEE Aerospace and Electronic Systems Magazine >GPS guidance system increases projectile accuracy
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GPS guidance system increases projectile accuracy

机译：GPS导航系统提高了射弹精度

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To meet the size/performance and cost-driven goals required for more advanced projectile and mortar applications, IEC focused its efforts on function consolidation, electronic signal protection, ultra-deep sensor integration, and processing stability. IEC's development has been in the utilization of silicon-based micro-machine technology for the inertial sensor, high levels of processor integration, and hardware function consolidation, making the guidance package inherently immune to the vibration and high G shock effects of the launch. In addition, the size and power are sufficiently reduced to fit the constraints of the fuse well. While a GPS "only"-based guidance system seemed an ideal solution for the lowest cost implementation of smart weapon guidance, the potential for signal jamming meant that a GPS "only" solution would not be able to guide the projectile to the target. To resolve this limitation, an anti-jam (AJ) capability had to be incorporated into the GPS receiver, and a miniature on-board inertial measurement unit (IMU) had to be part of the system. Initial laboratory tests have proven that the GPS/inertial guidance system, enhanced with a robust, low-cost AJ subsystem, performs consistently well under simulated battlefield conditions.
机译：为了满足更高级的弹丸和迫击炮应用所需的尺寸/性能和成本驱动目标，IEC集中精力进行功能合并，电子信号保护，超深传感器集成和处理稳定性。 IEC的发展一直是将基于硅的微机械技术用于惯性传感器，高水平的处理器集成以及硬件功能整合，从而使该指导软件包具有发射所固有的振动和高G冲击效应。另外，尺寸和功率被充分减小以很好地适应保险丝的约束。尽管基于GPS“仅”的制导系统似乎是实现成本最低的智能武器制导的理想解决方案，但潜在的信号干扰意味着GPS“仅”的解决方案无法将弹丸引导至目标。要解决此限制，必须将抗干扰（AJ）功能整合到GPS接收器中，并且微型车载惯性测量单元（IMU）必须成为系统的一部分。初步的实验室测试证明，GPS /惯性导航系统经过增强的低成本低成本AJ子系统后，在模拟战场条件下始终表现良好。

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