If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
1. Decimation function is divided into decimation filter and de sampling decimation. What kind of filter is decimation filter and how to generate its coefficients? Can an example of generating filter coefficients be provided?
2. In slou338 PDF file, chapter 8.3, demodulation mode test part, and the fourth test, demod M = 4 I / Q test mode, the coefficients of its decimation filter can be seen from the txt file, but the specific parameters of the cut-off frequency of the filter are unknown, please explain in detail.
3. In the tidu702pdf file, chapter 5.5, according to the test steps provided, the performance of signal-to-noise ratio improvement cannot be achieved.
