本文關(guān)鍵詞：電光調(diào)制器偏置電壓控制算法的研究　出處：《長春理工大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 電光調(diào)制器 偏置電壓 靜態(tài)工作點(diǎn) 控制算法

【摘要】：如今,電光調(diào)制技術(shù)在光通信領(lǐng)域中應(yīng)用廣泛。電光調(diào)制器是用來完成將電信號加載于光這一過程的設(shè)備,它是基于電光效應(yīng)原理工作的。電光調(diào)制器在調(diào)制信號時,其直流偏置電壓的設(shè)定決定了其靜態(tài)工作點(diǎn)�？刂普{(diào)制器工作在理想的工作點(diǎn),才能保證信號不失真,完成線性調(diào)制。本文根據(jù)電光調(diào)制器的工作原理和工作時的要求,分析了工作點(diǎn)和偏置電壓設(shè)定之間的關(guān)系,并且通過建立自動控制系統(tǒng)來實(shí)現(xiàn)對偏置電壓的控制。著重分析了幾種常見控制算法的特性,針對系統(tǒng)受到干擾時工作點(diǎn)的漂移和調(diào)制器控制中參量的特點(diǎn),提出了不斷處理偏差量實(shí)現(xiàn)控制偏壓改進(jìn)的逐次遞推、分程逐次遞推的自適應(yīng)PID的控制算法。并分析了控制算法在調(diào)節(jié)過程中各個狀態(tài)量轉(zhuǎn)換關(guān)系。建立實(shí)驗(yàn)環(huán)境對算法進(jìn)行驗(yàn)證。對比未加偏置控制算法和使用不同的控制算法控制透過率的結(jié)果。相比之下,逐次遞推和分程逐次遞推的自適應(yīng)PID算法對穩(wěn)定被控量起到了效果。其中,分程逐次遞推的算法效果更好,可以在工作點(diǎn)產(chǎn)生漂移時,穩(wěn)定其透過率值并保持工作點(diǎn)處于線性區(qū)中點(diǎn)。
[Abstract]:Nowadays, electro-optical modulation technology is widely used in the field of optical communication. An electro-optic modulator is a device used to complete the process of loading electrical signals to light. It works based on the principle of electro-optic effect. When the electro-optic modulator is modulated, the setting of the DC bias voltage determines its static working point. The control modulator works at the ideal working point to ensure that the signal is not distorted and the linear modulation is completed. According to the working principle and working requirements of electro-optic modulator, the relationship between working point and bias voltage setting is analyzed, and the control of bias voltage is realized by establishing automatic control system. Focuses on the analysis of the characteristics of several kinds of common control algorithm, characteristic parameter drift and modulator control for disturbance the working point of the proposed adaptive PID control algorithm to realize the control of successive processing deviation bias improved recursive and recursive process of successive. And the change relation of each state quantity in the control process is analyzed. The experimental environment is established to verify the algorithm. The results of the transmission rate are controlled by comparing the non biased control algorithm and using different control algorithms. In contrast, the adaptive PID algorithm with successive recursive and successive recursive recursive algorithms has the effect of stabilizing the controlled quantity. Among them, the step by step recursive algorithm has a better effect. It can stabilize the transmission rate and keep the working point in the middle point of the linear region when the work point is drifting.
【學(xué)位授予單位】：長春理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TN761
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本文編號：1343425