[Home]  [Analog route] [Published Articles]

[Hardware] [Software] [Digital Signal Processing route]

[Effective directivity by DSP] [Comparing Techniques]

[Results and Audio Samples]

Digital Signal Processing route

Why can digital signal processing (DSP) help?

• DSP makes signal processing possible, which is not practical feasible with analog electronics.
• DSP can do this with an accuracy not practical feasible with analog electronics.

The Effective directivity by DSP chapter is explained in more detail. It is also published in a QEX article (see also Published Articles)

Using DSP one can implement the best or ideal:

with only one antenna and one receiver:

- CW filters

- Multi Notch Filtering

- Noise Reduction techniques

- Noise Blanker techniques

- AGC

- S-meter

- Binaural / Panoramic Reception

with two (or more) antennas and two (or more) phase coherent receivers:

- Manual / Automatic Phaser (Noise Canceller)

- Effective Directivity using TDOA

- True Diversity Reception

- Enhanced Stereo Reception

I have implemented this in my Software Defined Radio Hardware and Software.

And in DSP one can implement even more clever, sophisticated and complex tricks.

For instance (Blind) Source Separation?

And of course the only one place for the AGC is at the end !!!

Last update: March 18, 2018

© PA0SIM