| 采用高速FIFO和双CPU的光纤陀螺捷联系统 |
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| 引用本文： | 高延滨,曾建辉,孙华,常云萍. 采用高速FIFO和双CPU的光纤陀螺捷联系统[J]. 电光与控制, 2007, 14(6): 173-175,188 |
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| 作者姓名： | 高延滨 曾建辉 孙华 常云萍 |
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| 作者单位： | 哈尔滨工程大学自动化学院,哈尔滨,150001;哈尔滨工程大学自动化学院,哈尔滨,150001;哈尔滨工程大学自动化学院,哈尔滨,150001;哈尔滨工程大学自动化学院,哈尔滨,150001 |
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| 基金项目： | 哈尔滨工程大学校科研和教改项目 |
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| 摘 要： | 在光纤陀螺构成的捷联惯导数据采集系统中,采用了双CPU结构的工作模式,用高速FIFO作为数据交换桥梁.采用FPGA DSP构建系统,DSP用于捷联算法解算,FPGA用于DSP与各类传感器之间的接口,并用软FIFO成功解决了系统中断不够用的问题.最后对光纤陀螺进行了专项测漂与标定,验证了该系统的数据采集和传输的正确性和可靠性.
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| 关 键 词： | 光纤陀螺 捷联惯导 数据交换 FPGA FIFO |
| 文章编号： | 1671-637X（2007）06-0173-03 |
| 修稿时间： | 2006-12-152007-03-28 |
FOG strapdown inertial navigation system based on high-speed FIFO and double CPUs |
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| GAO Yan-bin,ZENG Jian-hui,SUN Hua,CHANG Yun-ping. FOG strapdown inertial navigation system based on high-speed FIFO and double CPUs[J]. Electronics Optics & Control, 2007, 14(6): 173-175,188 |
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| Authors: | GAO Yan-bin ZENG Jian-hui SUN Hua CHANG Yun-ping |
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| Affiliation: | Harbin Engineering University, Harbin 150001, China |
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| Abstract: | The FOG strapdown navigation system is small and need a large a mount of real - time computation. DSP is high - efficient, high - speed and is very suitable for efficient data processing. FPGA has the advantages of short development cycle, low - cost and easily repeated erasure/programming. We used two CPUs in FOG strapdown inertial navigation system, and FIFO is used as data exchange bridge. The data collection sysface between DSP and the sensors. The problem that the interruptions are not enough is solved by soft FIFO. Drift measurement and calibration were carried out for FOG by experiments, and the correctness and reliability of data collection and transmission were verified. |
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| Keywords: | FOG strapdown inertial navigation data exchange FPGA FIFO |
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