Frequency hopping spread spectrum ppt

1. What is frequency hopping spread spectrum technique?
2. What is difference between frequency and spread hopping?
3. Why is frequency hopping used?
4. What are the four main types of spread spectrum?

What is frequency hopping spread spectrum technique?

Frequency-hopping spread spectrum (FHSS) is a method of transmitting radio signals by rapidly changing the carrier frequency among many distinct frequencies occupying a large spectral band.

What is difference between frequency and spread hopping?

In the spread spectrum, the information is transmitted in short breaks of data at different carrier frequencies. In the frequency-hopping spread spectrum (FHSS), each component is transmitted at a different carrier frequency.

Why is frequency hopping used?

Frequency hopping is a technique mainly used to keep two or more RFID readers from interfering with each other while reading RFID tags in the same area.

What are the four main types of spread spectrum?

Frequency-hopping spread spectrum (FHSS), direct-sequence spread spectrum (DSSS), time-hopping spread spectrum (THSS), chirp spread spectrum (CSS), and combinations of these techniques are forms of spread spectrum.