I also studied some related technologies, such as DVB system, ATM technology, interleave technology, CRC code technology.

并研究了用到的多种技术，主要涉及到DVB系统、A TM技术、交织技术、CRC编码技术。

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Conditional access system (CAS) is the key to realize the increment of the DVB system and provides effective system management and subscriber control.

条件接收系统(CAS)是DVB系统实现增值的核心，能够提供有效的系统管理和用户控制。

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This thesis pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of DVB system.

本文重点分析了DVB系统结构流程，核心技术及系统信道特性和参数。

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