|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2010年07 期
| 標(biāo)題 |
| 針對(duì)LDPC信道編碼的無線視頻傳輸性能分析(19 卷) |
| 英文標(biāo)題 |
| Analysis of wireless video transmission performance using LDPC code |
| 摘要 |
| 本文對(duì)H.264壓縮視頻使用低密度奇偶校驗(yàn)碼（LDPC）信道編碼策略，分別在加性高斯白噪聲、隨機(jī)誤碼以及瑞利平坦衰落3種無線信道傳輸環(huán)境下，從信噪比和誤碼率等信道特性與重建視頻質(zhì)量之間的關(guān)系分析無線視頻的傳輸性能。結(jié)果表明：無線信道狀態(tài)不穩(wěn)定使視頻解碼質(zhì)量產(chǎn)生較大 |
| 作者 |
| 新聞作者:仲麗媛，荊 濤，牛青青，霍 炎 |
| 關(guān)鍵字 |
