基于DSP+FPGA的通用IRFPA成像系统

General IRFPA imaging system based on DSP and FPGA

为了采集不同红外焦平面阵列的图像,提出了一种基于 FPGA 的软件和硬件融合的设计方法.系统中 DSP 作为核心处理单元,FPGA 作为控制单元.利用 FPGA 将用户的软件控制指令转换为数字电路的控制逻辑,使系统的通用性大大提高.较为详细地阐述了戍像系统的结构和 FPGA 的控制逻辑,最后给出了 DSP实现数据采集的程序实现.实验表明该方法通用性好,实现简单.

In order to acquire different IRFPA images,a new method based on amalgamation of hardware and software is introduced.In the system,DSP is used as core processing unit,and FPGA is used as control unit.By translating user's control instruction to control logic of digital circuit,the generality of the system is heavily improved.The structure of imaging system and FPGA control logic are introduced in detail in the paper.At last,the program of image data acquisition is presented.Experiments show that the design is well universal and easy to realize.