Howtosignalprocessing
- What are required to avoid frequency overlapping?
- How do you separate superimposed signals?
- How do you filter frequency?
- Which is used to keep modulated signals from overlapping and interfering issues with one another?
What are required to avoid frequency overlapping?
In order to avoid this, a receiver with directional antenna is used, which can then be aligned in such a way that it will only receive the signal of one transmitter. Alternatively, the signals could be separated using a demodulator in single sideband mode.
How do you separate superimposed signals?
Fourier Transform and Inverse Fourier Transform Method
These two methods use the superresolution technique of Gerchberg to separate overlapping signals. To use this approach, it is mandatory to acquire the echo configuration from experiments.
How do you filter frequency?
Frequency filters process an image in the frequency domain. The image is Fourier transformed, multiplied with the filter function and then re-transformed into the spatial domain. Attenuating high frequencies results in a smoother image in the spatial domain, attenuating low frequencies enhances the edges.
Which is used to keep modulated signals from overlapping and interfering issues with one another?
To keep one signal from interfering with another signal, a set of unused frequencies called a guard band is usually inserted between the two signals to provide a form of insulation.
