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详细地介绍了信号加扰和解扰的基本原理,并描述了如何在VOD系统中引入移动通信系统中的安全技术,用以提高整个系统的安全性能。
The basic principles of signal scrambling and descrambling are introduced in detail, and how to introduce the security technology in mobile communication system into VOD system is introduced to improve the security of the whole system.