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根据实验室现有的PMD(偏振模色散)补偿实验系统的需要,设计了一种基于DSP的实时控制系统。讨论了该实时控制系统的硬件和软件的设计与实现,对硬件电路进行了总体设计,分别对各部分的DSP最小系统、A/D采样硬件电路和D/A控制硬件电路进行了详细的分析和设计。介绍了软件的工作流程,设计了PSO算法模块在DSP系统中的实现。将该实时控制系统应用到PMD自适应补偿实验中进行了验证。结果表明,所设计的PMD自适应补偿实时控制系统对一阶和二阶PMD的补偿效果很好。
According to the existing PMD (Polarization Mode Dispersion) compensation experimental system needs, a real-time DSP-based control system is designed. The design and realization of the hardware and software of the real-time control system are discussed. The overall design of the hardware circuit is carried out. The detailed parts of the DSP system, A / D sampling hardware circuit and D / A control hardware circuit are analyzed in detail And design. The workflow of software is introduced and the realization of PSO algorithm module in DSP system is designed. The real-time control system is applied to PMD adaptive compensation experiments were verified. The results show that the design of PMD adaptive compensation real-time control system for the first and second order PMD compensation effect is very good.