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xianuser木蟲 (正式寫手)
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[求助]
求潤色
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我寫的中英文摘要對照如下,感覺不好,求幫助。 考慮到嵌入式系統(tǒng)功耗的限制和無線信道的時變特點,本文提出一種采用視頻壓縮技術(shù)和藍牙傳輸技術(shù)的實時視頻傳輸方案。該系統(tǒng)才阿勇基于質(zhì)量控制服務(wù)機制的藍牙分組類型,并通過通信信用消耗機制來支持實時視頻服務(wù)。詳細(xì)的測試結(jié)果表明,本系統(tǒng)可以只是優(yōu)質(zhì)實時視頻傳輸。實驗同時表明,針對不同的信噪比(SNR),采用合適的ACL分組類型,而不是最大分組類型,可以獲得最大的傳輸速度。本方案由于具有較好的可移植性和健壯性,可以容易在移動應(yīng)用中實現(xiàn)。 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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