| 基于DSP的红外焦平面阵列实时非均匀性校正技术 |
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| 引用本文： | 黄战华,曹永超,杨基春.基于DSP的红外焦平面阵列实时非均匀性校正技术[J].传感技术学报,2006,19(6):2607-2609,2612. |
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| 作者姓名： | 黄战华 曹永超 杨基春 |
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| 作者单位： | 天津大学精仪学院,天津,300072 |
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| 摘 要： | 针对红外焦平面阵列在进行非均匀性校正中所涉及的运算量和数据量庞大、实时处理难于实现的特点,采用TMS320C6000系列DSP两路数据通道的优势,输入输出数据采用不同的数据通道并行传输,利用EDMA传输方式无需CPU介入,充分利用DSP硬件的并行性和流水线进行非均匀性校正,以分段线性插值算法为例,详细阐述了硬件设计和实现步骤,并给出仿真结果,结果表明:基于DSP的实时非均匀性校正系统完全可以达到实时校正的要求.
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| 关 键 词： | 红外焦平面 非均匀性校正 |
| 文章编号： | 1004-1699（2006）06-2607-03 |
| 收稿时间： | 2005-11-16 |
| 修稿时间： | 2005-11-16 |
Design of infrared image real-time nonuniformity correction system |
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| Huang Zhanhu,CAO Yongchao,YANG Jichun.Design of infrared image real-time nonuniformity correction system[J].Journal of Transduction Technology,2006,19(6):2607-2609,2612. |
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| Authors: | Huang Zhanhu CAO Yongchao YANG Jichun |
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| Affiliation: | College of Precision instrument and Opto-Electronic Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Because the operands and data volume are so vast that it is difficult to realize real-time processing in the non-uniformity correction(NUC)on the infrared focal plane.In this system,TMS320C6000 DSP is applied to resolve the problem.TMS320C6000 can provide two data channels,that input data and output data are designed to transmit through different channels in parallel mode.CPU is not needed in EDMA transmission and the DSP's advantages of parallelism and pipeline are utilized well in the system.Take linear segment interpolation algorithm as an example,the hardware design and implementation flow of the system are described.And the simulation result indicates the real-time non-uniformity correction system satisfies the real-time requirement completely. |
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| Keywords: | DSP |
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