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Explain the difference between slow FHSS and fast FHSS.
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written 2.6 years ago by |
Slow FHSS | Fast FHSS | |||
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In slow frequency hopping spread spectrum, multiple symbols are transmitted in one frequency hop. | In fast frequency hopping spread spectrum, multiple hops are required to transmit one symbol. | |||
One or more symbols are transmitted over the same carrier frequency. | One symbol is transmitted over multiple carriers in different hops. | |||
Symbol rate is equal to chip rate. | Hop rate is higher than symbol rate. | |||
Hop rate is lower than symbol rate. | Hop rate is higher than symbol rate. | |||
A jammer can detect this signal if carrier frequency in one hop is known. | A jammer can’t detect this signal because one symbol is transmitted using more than one carrier frequencies. |