A comprehensive guide to electromagnetic waves and signal modulation, focusing on propagation des ondes électromagnétiques dans le vide and wave characteristics. The material covers fundamental concepts of electromagnetic wave propagation, modulation techniques, and signal processing.
- Electromagnetic waves can travel through vacuum at the speed of light (3.0 × 10⁸ m/s)
- Wave characteristics include period, frequency, and wavelength measurements
- Signal modulation processes involve carrier waves and information transmission
- Different antenna types are used for wave transmission
- The modulation process includes emission, transport, and information recovery stages