USRP2溢出问题
我正在尝试从 gnuradio-companion 捕获 wlan 样本。我已使用以下内容配置了 USRP 源:
- Ch0 增益 = 50dB
- 设备地址:192.168.10.3
- 中心频率:2.437GHz
- 采样率:11M
但是,当我执行模型时,我在控制台收到溢出消息。有关配置是否适合收集样本的任何提示?
这是随附的模型:
I am trying to capture the wlan samples from gnuradio-companion. I have configured the USRP Soource with the following :
- Ch0 Gain = 50dB
- device addr : 192.168.10.3
- Center Frequency : 2.437GHz
- Sample Rate : 11M
But , when I execute the model, I receive the Overflow message at the console. Any hints whether the configuration is proper for collecting the samples ?
Here is the attached model:
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论
评论(2)
“溢出”表示您的计算机接收数据的速度快于处理数据的速度。
我意识到这是一个老问题,但对于其他看到这个问题希望找到有用的东西的人来说,请记住您的计算机必须处理这些样本。在这里,您将样本转储到两个图形接收器中,并以 11 MSps(11e6 * 32 位 = 352 MBits/秒)写入硬盘。
如果您使用的机器无法跟上这一速度,则溢出是可以预料的!
An 'overflow' indicates that your computer is receiving data faster than it is capable of processing it.
I realize this is an old question, but for anyone else that looks at this question hoping to find something useful, remember that your computer must process the samples. Here, you are dumping the samples into two graphical sinks, and also writing to your hard disk at 11 MSps (11e6 * 32bits = 352 MBits / sec).
If you are on a machine that can't keep up with that, the overflows would be expected!
您没有说明您是否以 root 身份运行,但对我来说,以 root 身份运行解决了我的问题。以 root 身份运行可为您提供更多特权,因此您可以使用处理器的更多功能。
You do not state if you run as root or not, but for me running as root solved the problem for me. Running as root gives you more privelegies and so you can use more features of the processor.