advantage of SSB ic can save power..and also the bandwidth requirements
The advantages of DSB-SC are that power consumption is nominal, the power from the signal can be contained in four sidebands, and the bandwidth is double the amount in the signal.
in SSB-SC only one side band of AM s/g is sent frm Transmitter instead of both sideband and carrier in that of DSB-FC(DSB-FC consist of upper side band ,lower side band both conveying same information i.e. mirror image of each other and original carrier i.e. after the process of modeulation carrier is also present in DSF-FC s/g). thus DSB-FC = USB+LSB+Cariier hence total power in DSB-FC= cariier pow+ usb pow+lsb pow SSB-SC = either USB or lsb toatal pow= pow in single side band 1.using SSB-Sc power is saved. 2.Bandwith is reduced 3. noise immunity is more.
Am- DSB stands for Double or Duplex Side Band Am- SSB- amplitude modulation, which is what Am means, Single-Side-Band, sideband sometimes written as one word but abbreviated phonetically as SSB. SSb is widely used in amateur radio and some forms of CB as well. the concept is related to the much older, and still viable idea of Bandspreading, or Bandspread where the tuning is split over two dials or a subdial for the fine-tuning harmonics. applied to receivers only. Get some old electronics magazines from the thirties from Lindsay"s publications, angled at the hobbyist they explain things as they go along. the Gernsback l934 Short wave manual is good technical theory and also has reviews and circuit diagrams of many then current radio gear, great fun for browsing.=and technically correct. ********************************************************** Normal a.m. transmission has a carrier and two identical sidebands, the upper and lower. That's a.m. d.s.b. (double sideband). The sum of the power in the two sidebands can't exceed half that of the carrier. For example, a 100W carrier modulated to 100% will have 25W in each sideband. It is possible to achive better efficiency by suppressing the carrier, which means that half the transmitted power will be in each sideband. That's still d.s.b., with the addition of s.c. to indicate the difference. A further increase in efficiency can be achived by also suppressing one of the sidebands, so all of the transmitted power is in that sideband. That is what is normally referred to as s.s.b., but more correctly it's s.s.b. s.c.
advantages over what? over 74HC Series? or 74LC Series? or CMOS 4000 series?
ssb modulation scheme
The advantages of DSB-SC are that power consumption is nominal, the power from the signal can be contained in four sidebands, and the bandwidth is double the amount in the signal.
Analog modulationIn analog modulation, the modulation is applied continuously in response to the analog information signal.Common analog modulation techniques are:Amplitude modulation (AM) (here the amplitude of the modulated signal is varied) Double-sideband modulation (DSB) Double-sideband modulation with unsuppressed carrier (DSB-WC) (used on the AM radio broadcasting band)Double-sideband suppressed-carrier transmission (DSB-SC)Double-sideband reduced carrier transmission (DSB-RC)Single-sideband modulation (SSB, or SSB-AM), SSB with carrier (SSB-WC)SSB suppressed carrier modulation (SSB-SC)Vestigial sideband modulation (VSB, or VSB-AM)Quadrature amplitude modulation (QAM)Angle modulation Frequency modulation (FM) (here the frequency of the modulated signal is varied)Phase modulation (PM) (here the phase shift of the modulated signal is varied)
in SSB-SC only one side band of AM s/g is sent frm Transmitter instead of both sideband and carrier in that of DSB-FC(DSB-FC consist of upper side band ,lower side band both conveying same information i.e. mirror image of each other and original carrier i.e. after the process of modeulation carrier is also present in DSF-FC s/g). thus DSB-FC = USB+LSB+Cariier hence total power in DSB-FC= cariier pow+ usb pow+lsb pow SSB-SC = either USB or lsb toatal pow= pow in single side band 1.using SSB-Sc power is saved. 2.Bandwith is reduced 3. noise immunity is more.
no
drawbacks of conventional am
DSB Bank ended in 2009.
The population of DSB Bank is 2,013.
DSB Bank's population is 2,000.
DSB Bank was created in 1975.
DSB Class MY was created in 1954.
DSB Congress was created in 1879.
DSB Class ME was created in 1981.