Sagedusvarasuste

Sagedusvarasuste, a term derived from Estonian, generally refers to frequency hopping, a spread spectrum communication technique. In this method, the transmitter and receiver rapidly switch their carrier frequency among a predetermined sequence of frequencies, known as a hopping pattern. This hopping pattern is synchronized between the transmitter and receiver. The primary purpose of frequency hopping is to enhance the security and robustness of wireless communication systems.

By rapidly changing frequencies, sagedusvarasuste makes it significantly harder for unauthorized listeners to intercept or jam the signal. A potential eavesdropper would need to track the complex hopping pattern to follow the communication. Similarly, jamming a frequency hopping signal requires a sophisticated jammer that can predict or cover all possible frequencies in the hopping sequence, which is often impractical. This technique is employed in various applications, including military communications, Bluetooth, and some Wi-Fi standards, where resistance to interference and security are critical. The pseudorandom nature of the hopping sequence is a key element in its effectiveness. The speed of hopping and the number of frequencies used can vary depending on the specific system and its requirements.