What is phase shift method for SSB generation?
The phaseing method of SSB generation uses a phase shift technique that causes one of the side bands to be conceled out. A block diagram of a phasing type SSB generator is shown in fig.
What is phase shift method?
Laser rangefinders are often based on the phase shift method, a technique for measuring distances in the following way. A laser beam with sinusoidally modulated optical power is sent to a target. The phase shift obtained is 2π times the time of flight times the modulation frequency.
How is SSB generated?
One method of producing an SSB signal is to remove one of the sidebands via filtering, leaving only either the upper sideband (USB), the sideband with the higher frequency, or less commonly the lower sideband (LSB), the sideband with the lower frequency.
How SSB signal can be generated by filter method?
The filter method is the traditional SSB reception method in analog superhet receivers. Typically a first mixer translates the signal to an intermediate frequency (IF) first. At the IF a sharp band-pass filter (e.g. a quartz filter) simply selects only one of the two sidebands and suppresses the other one.
Why SSB transmission is preferred?
Single sideband modulation, SSB is the main modulation format used for analogue voice transmission for two way radio communication on the HF portion of the radio spectrum. Its efficiency in terms of spectrum and power when compared to other modes means that for many years it has been the most effective option to use.
What is Weaver method?
ABSTRACT. The Weaver technique or the third method of generation of single sideband modulation with suppressed carrier (SSB-SC) amplitude modulation (AM) signals is one such algorithm which looks deceptively simple when compared with the more analytically tractable phase-shift method.
What is the disadvantage of SSB filters?
Disadvantages. The cost of a single side band SSB receiver is higher than the double side band DSB counterpart be a ratio of about 3:1. The average radio user wants only to flip a power switch and dial a station.
How is phase shift used in SSB transmission?
Phase Shift Method 1 It uses two balanced modulators instead of one. The balanced modulators effectively eliminate the carrier. The carrier… 2 The carrier signal is V c Sin2πf c t the modulating signal is V m Sin2πf m t. Balanced modualtor produces the product of… More
How to draw a Phase Shift block diagram?
Draw and Explain the Block Diagram of Phase Shift Method for Generating SSB Signal . Draw and Explain the Block Diagram of Phase Shift Method for Generating SSB Signal . Fig. 1 shows the block diagram for the phase shift method of SSB generation .
Which is the best method for SSB generation?
There are three well known methods of SSB generation using analog techniques,namely the filter method, the phasing method, and Weaver’s method. Thisexperiment will study the phasing method. the filter method You have already modelled a DSBSC signal.
How does a phasing type SSB generator work?
A block diagram of a phasing type SSB generator is shown in fig. 4. It uses two balanced modulators instead of one. The balanced modulators effectively eliminate the carrier. The carrier oscillator is applied directly to the upper balanced modulator along with the audio modulating signal.
