To Study SSB Modulation & to Compare its Efficiency with other Modulation Techniques.
Single Sideband (SSB) Modulation is an efficient form of Amplitude Modulation (AM) that uses half the bandwidth used by AM. Single Sideband (SSB) Modulation is similar to Double Single Sideband (DSB) modulation, but instead of using the whole spectrum it uses a filter to select either the lower or upper sideband. Comparing the two communication systems discussed earlier, Double Sideband Suppressed Carrier (DSBSC) offers considerable power savings over AM (at least 66%) because a carrier is not transmitted. However, both systems generate and transmit sum and difference frequencies (the upper and lower sidebands) and so they have the same bandwidth for the same message signal.
As its name implies, the Single Sideband Suppressed Carrier (SSBSC or just SSB) system transmits only one sideband. In other words, SSB transmits either the sum or the difference frequencies but not both. Importantly, it doesn't matter which sideband is used because they both contain all of the information in the original message.
In transmitting only one sideband, SSB requires only half the bandwidth of DSBSC and AM which is advantageous over these modulation techniques. Additionally, the demodulation of SSBSC is simpler than for DSBSC without carrier. It can be noted that the output of the SSB signal before filtering has the higher order frequency components which are eliminated by the filter.
