Howtosignalprocessing
- Why baseband signal is complex?
- Why is baseband not practical for radio communication?
- What is baseband representation?
- What is difference between baseband and RF?
Why baseband signal is complex?
Complex baseband representation of a modulated signal
Comparing equations (1) and (2), it is evident that in the complex baseband equivalent representation, the carrier frequency is suppressed. This greatly reduces both the sampling frequency requirements and the memory needed for simulating the model.
Why is baseband not practical for radio communication?
But a baseband signal cannot be transmitted over a radio link or a satellite because this would require a large antenna to radiate the low-frequency spectrum of the signal.
What is baseband representation?
A baseband signal or lowpass signal is a signal that can include frequencies that are very near zero, by comparison with its highest frequency (for example, a sound waveform can be considered as a baseband signal, whereas a radio signal or any other modulated signal is not).
What is difference between baseband and RF?
An RF signal is usually considered a signal of high enough frequency to propagate from an antenna. A baseband signal is a lower frequency signal which carries information which can modulate a transmitted frequency.
