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xianuser木虫 (正式写手)
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我写的中英文摘要对照如下,感觉不好,求帮助。 考虑到嵌入式系统功耗的限制和无线信道的时变特点,本文提出一种采用视频压缩技术和蓝牙传输技术的实时视频传输方案。该系统才阿勇基于质量控制服务机制的蓝牙分组类型,并通过通信信用消耗机制来支持实时视频服务。详细的测试结果表明,本系统可以只是优质实时视频传输。实验同时表明,针对不同的信噪比(SNR),采用合适的ACL分组类型,而不是最大分组类型,可以获得最大的传输速度。本方案由于具有较好的可移植性和健壮性,可以容易在移动应用中实现。 Considering the limit of battery lifetime in embedded system and character of timing varying fading wireless channel and, a framework for real video transmission over Bluetooth channels adopting video compression technology MPEG4 is proposed in the paper. The system adopts Quality of Service mechanisms for Bluetooth packet type, and utilizes traffic credits to support for real-time video services. A detailed measured results show that the system can support real-time large-size video transmission with good quality. And more, it suggests that a best appropriate ACL packets type, rather than the maximum payload packet, should be select according to SNR to achieve a maximal speed of transmit. Due to good transportability and robustness, it can be realized easily for mobile applications. |
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