As we know Wireless technology has made communication a lot easier with its better efficiency and ease of accessibility. But this wireless technology can be made even more efficient with the help of Band- Filters.
With the help of Band-Stop Filter the GNU Radio application can be made a lot more efficient. Before we go in to the use of Band-Stop Filter in GNU Radio, let us see what GNU Radio is,
GNU Radio is an open source software tool that provides signal processing blocks to implement communication and signal system applications. And now we will discuss about how to implement the Band-Stop filter in GNU Radio platform.
Let’s understand how Band-Stop filter works
A Band-Stop Filter is a device that stops only some band of frequencies by passing other bands.
A Band-stop filter or Band-rejection filter is a filter that passes most frequencies unaltered, but attenuates those in a specific range to very low levels. It is the opposite of a Band-pass filter.
Bandwidth is commonly defined as the frequency range that exists between two cut-off frequencies (ƒc).
Bandwidth of Band-Stop Filter is given by BW = ƒH – ƒL.
Where
- ƒL is the lower cut-off frequency point
- ƒH is the upper cut-off frequency point
To learn more about the working of Band-Pass Filter in GNU Radio companion, please click on the link for the application note below,
http://www.tenettech.com/product/7003
Implementation of Band-Stop Filter in GNU Radio
