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USRP 問題——輸 出“O”“U”"u“”a"的意義
輸 出 "O" "U" "u" "a" 的意義
- 當運行 gnu radio 程序時,會有時看見 "O" "U" "u" "a" 字符出現在屏幕上。這一般當數據從 USRP 到 PC 機數據傳輸停止或什麼事情發生時會出現。
"u" = USRP
"a" = audio (聲卡)
"O" = overrun (PC 無法同步地接受來自 USRP 或 聲卡的數據 -PC not keeping up with received data from usrp or audio card)
"U" = underrun(PC 無法快速的提供數據 -PC not providing data quickly enough)
aUaU == audio underrun (PC 無法快速地給“漏”- 聲卡提供數據 -not enough samples ready to send to sound card sink)
uUuU == USRP underrun (PC 無法快速地給“漏”-USRP提供數據 -not enough sample ready to send to USRP sink)
uOuO == USRP overrun (USRP 采樣掉鏈源於它沒有及時準備到位 -USRP samples dropped because they weren't read in time)
速度快的計算機可以避免問題。當然,前提是沒有讓 USB 幹它負荷不起的事情。理想的情況是 USB 負荷 32MB/s
"a" = audio (聲卡)
"O" = overrun (PC 無法同步地接受來自 USRP 或 聲卡的數據 -PC not keeping up with received data from usrp or audio card)
"U" = underrun(PC 無法快速的提供數據 -PC not providing data quickly enough)
aUaU == audio underrun (PC 無法快速地給“漏”- 聲卡提供數據 -not enough samples ready to send to sound card sink)
uUuU == USRP underrun (PC 無法快速地給“漏”-USRP提供數據 -not enough sample ready to send to USRP sink)
uOuO == USRP overrun (USRP 采樣掉鏈源於它沒有及時準備到位 -USRP samples dropped because they weren't read in time)
速度快的計算機可以避免問題。當然,前提是沒有讓 USB 幹它負荷不起的事情。理想的情況是 USB 負荷 32MB/s
最後更新:2017-04-03 12:53:59