基于软件锁相环的3D眼镜红外抗干扰技术

A software PLL-based 3D glasses anti-infrared interference technology

介绍了一种基于软件锁相环的红外线抗干扰技术的原理和实现方法。该方法基于锁相环的基本原理,利用3D电视同步信号与3D眼镜同步信号之间的对应关系,通过准确计算两种同步信号之间的同步误差并在3D眼镜同步信号中动态补偿误差值,达到准确锁相和抗红外线干扰的目的。该方法取代了传统软件锁相环中复杂的积分环节,实现方法简单有效。在快门3D眼镜产品上应用的结果表明,该软件锁相环具有很好的信号捕获和跟踪性能。

This paper introduces the principle and implementation of a software PLL-based anti-infrared interference technology. The method is based on the basic principle of the PLL, utilizing the correspondence relationship between the 3D TV synchronizing signal and the synchronizing signal of the 3D glasses, by accurately calculating the synchronization error between the two synchronization signals and dynamically compensating the synchronization error in the synchronizing signal of the 3D glasses, in order to achieve accurate phase locking and anti-infrared interference. The method replaces the complex integral parts of traditional soft-ware phase-locked loop. As it is simple and effective, and the results on the application of shutter 3D glasses products show that the software PLL has good signal acquisition and tracking performance.