Signal protection refers to methods used to safeguard communication signals from interference, distortion, or unauthorized access. This is crucial in various fields, including telecommunications and data transmission, where clear and secure signals are essential for effective communication. Techniques such as encryption and error correction help maintain the integrity and confidentiality of the transmitted information. In the context of wireless communication, signal protection can involve the use of spread spectrum techniques, which spread the signal over a wider frequency range, making it more resistant to jamming and eavesdropping. Additionally, modulation schemes can enhance signal robustness, ensuring that the information remains intact even in challenging environments.