基于PWM调制混沌信号的亮度控制新方法研究

Study of Brightness Control Based on Chaotically Modulated PWM Signal

摘要: 混沌信号具有非周期、类噪声等特点。根据logistic映射产生混沌序列，通过DA转换得到模拟的混沌信号，利用PWM技术调制混沌信号来控制LED的亮度，可以消除因调制周期信号控制LED亮度时产生的频闪现象，达到更好地亮度控制的效果。

Abstract: The chaotic signal is aperiodic and similar to noise. Chaotic signals can be obtained through DA converter based on Logistic map. Instead of using periodic signal, the use of chaotic signal through PWM technology to control the brightness of LED can eliminate the strobe phenomenon.