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Comparative Study of Am Fm Pm Ask Fsk Psk

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Submitted By dhaval0024
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| Advantages | Disadvantages | Applications | AM | 1. It is simple to implement 2. There is no need of any specialised components, thus AM is very cheap. | 1. The power usage is not efficient. 2. Bandwidth usages is not efficient. ( Bandwidth required is twice the highest audio frequency ) 3. As most noise are amplitude based, AM is sensitive to it. | 1. Broadcast transmission 2. Air band radio 3. Single sideband | FM | 1. SNR is high, i.e. It is resistive to noise 2. It has good efficiency. | 1. Complicated receiver and transmitter. 2. It cannot be sent over long distances. | 1. Broadcast and Radio communication. | PM | 1. It is easy to implement PM compared to FM. 2. It is resistant to noise. 3. It requires less bandwidth. | 1. Encoding and decoding the signal is harder. | 1. Radio wave transmission 2. GSM 3. Wi-Fi 4. Satellite television | ASK | 1. It is easy to generate. 2. It is not costly. | 1. It is less resistive to noise. 2. SNR is less. | 1. Used mainly for radio frequencies | FSK | 1. It is more resistant to noise compared to ASK 2. Power requirement is constant. 3. Not costly. 4. Easy to implement. | 1. The required bandwidth is twice than ASK. | 1. It is used in high frequency radio transmission. 2. Used in GSM mobile. 3. Used for long distance transmission. | PSK | 1. It is resistive to noise. 2. It is robust. 3. Bandwidth is same as ASK. | 1. It is more complex. | 1. It is used in satellite communication. 2. It is used in wireless LAN. |…...

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