[英]GNU Radio Companion - How to calculate average power of a signal
How can I calculate the average power of a signal within a certain bandwidth and store that value in a variable that I can reference for later? 如何计算某个带宽内信号的平均功率,并将该值存储在我可以参考的变量中?
For example, I have a low pass filter 15kHz wide, I want to know if there's a tool in GNU Radio Companion that will allow me to calculate the average power over a certain time to see if the power level passes a threshold. 例如,我有一个15kHz宽的低通滤波器,我想知道GNU Radio Companion中是否有一个工具可以让我计算一段时间内的平均功率,看看功率水平是否超过阈值。
The power of a digital signal 数字信号的力量
is simply
很简单
.
。 Thus in order to do the following:
因此,为了做到以下几点:
calculate the average power
计算平均功率
over a certain time
过了一段时间
see if the power level passes a threshold
查看功率水平是否超过阈值
Have you read the tutorials? 你读过这些教程吗? http://tutorials.gnuradio.org
http://tutorials.gnuradio.org
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