本文關鍵詞： 無人機 DM 視頻壓縮 H編碼　出處：《液晶與顯示》2014年06期 　論文類型：期刊論文

【摘要】：無人機視頻數據的實時壓縮處理是無人機的關鍵技術之一。本文以DM368為核心處理器,以嵌入式Linux為板級操作系統(tǒng),設計出一套可供無人機使用的低功耗視頻實時壓縮系統(tǒng)。與傳統(tǒng)的嵌入式視頻H264軟件編碼壓縮系統(tǒng)相比,本系統(tǒng)依賴DM368內嵌的視頻協處理硬核處理H264編碼,具有功耗低,處理延遲小,外部電路簡單等諸多優(yōu)勢。同時系統(tǒng)以嵌入式Linux為板級操作系統(tǒng),實時性強,可穩(wěn)定高效的管理視頻采集、硬核調度、串口通訊、數據輸出等諸多任務。試驗結果表明,本系統(tǒng)在處理PAL制式為視頻源的H264編碼任務時,平均功耗僅為1.5W,具有功耗低、成本低、體積小、重量輕、實時性強等諸多優(yōu)勢,能夠滿足無人機視頻壓縮的應用需求。
[Abstract]:The real-time compression and processing of UAV video data is one of the key technologies of UAV. This paper takes DM368 as the core processor and embedded Linux as the board operating system. A low power real-time video compression system for UAV is designed, which is compared with the traditional embedded video H264 coding system. The system relies on DM368 embedded video coprocessing hard core processing H264 coding, with low power consumption and small processing delay. At the same time, the system takes embedded Linux as the board level operating system, which is real-time, stable and efficient to manage video collection, hard core scheduling, serial communication. The experimental results show that the average power consumption of H264 coding task with PAL is only 1.5W, which has low power consumption, low cost and small volume. Light weight, strong real-time and many other advantages, can meet the needs of UAV video compression applications.
【作者單位】： 中國科學院長春光學精密機械與物理研究所;中國科學院大學;
【基金】：吉林省2013年度博士后科研項目(No.RB20131)
【分類號】：V279;TN919.81
【正文快照】： 1引言無人機是一種近年來倍受各國青睞的高性能信息化裝備,具有起降簡單,操作靈活,成本低廉,不懼傷亡等多種優(yōu)勢。無人機的出現極大豐富和改變了戰(zhàn)爭的模式,在航空偵察、情報支援、電子干擾等諸多領域發(fā)揮著不可替代的作用[1-2]。無人機在實戰(zhàn)中體現出的最大優(yōu)勢在于情報獲取，

本文編號：1478354