With this the signal is converted into a form which is compatible with the system. For analog form, A/D converter is used for the transmission of the signal, and for digital form, such a block is not required if data already exists in the digital form (Bagad and Dhotre, 2009, p.4-26).
PCM – PCM or pulse-code modulation is a method based on digital encoding and are effectively used in optical fibre communications. The baseband video signal in the system is quantified and sampled. There is a series of bits that encodes the sample. The light is put on and off using binary signals. The bandwidth is required to be enhanced over the baseband method for its use. This is a good choice for optical communications, particularly when laser diode has to be utilized owing to presence of inherent nonlinearity in the source of the optics (Bandyopadhyay, 2014, p.314).
PPM – PPM or pulse position modulation is used for optical communications where the code scheme involves a bit time divided into two slots. Data can either be 1 or 0. If it is 1, the pulse gets transmitted in the first bit time slot. If the data is 0, then the pulse gets generated in the second slot of the bit time. Expansion of PPM is also possible and proves to be efficient for optical communications (Alexander, 1997, p.228).
Digital PPM – PPM can also be used digital transmission of information based on optical communications. It is also referred to as differential pulse position modulation. It is a variation of the PPM coding, which can transmit data irrespective of the presence of time. If delays occur in the transmission, they take reference from falling edge of the pulse that was earlier transmitted (Lazaridis, 2011).
Multiple PPM and Dicode PPM – Dicode PPM and Multiple PPM are considered as the most efficient bandwidths for optical communications. The best forms of sensitivities are offered by these PPM without causing the large bandwidth of the system to increase. ...
Cite this document
(“Introduction Essay Example | Topics and Well Written Essays - 1000 words - 2”, n.d.)
Retrieved from https://studentshare.net/engineering-and-construction/694102-introduction
(Introduction Essay Example | Topics and Well Written Essays - 1000 Words - 2)
“Introduction Essay Example | Topics and Well Written Essays - 1000 Words - 2”, n.d. https://studentshare.net/engineering-and-construction/694102-introduction.
Primark has been in retail industry for quite a while now, but this is one industry which has seen increasing levels of competition and emphasis on quality and customer satisfaction. No company can come out with quality products and services without the positive contribution from its workforce and Primark is no exception.
In scientific method, psychology has the immediate goal of understanding individuals and groups by both establishing general principles and researching specific cases and for many it ultimately aims to benefit the society.(McDougall,1914, p.4)
He sent his son hwanung to build a new country in the eastern land. Under his rule, the humans lived so happily. Beer and tiger longed to be like humans. This required prayer and eating of 20 garlic cloves for 100 days according to
Three teams were formed and the successful teamwork played a key part in the designing of a triumphant project.
The basic requirement of the design is to transport an object inside the water to another position. The basic idea to
Additionally, these plants exhibit a continuous kind of population growth which can be determined through numerical counting of their thallus or fronds which are their leaf resembling structures. This unlike for other plants that show seasonal growth
I am very proud of the work that I have done as well as the work that I will do in the future looking in this portfolio; a reader should feel as though the work that I built will some way amount to my future goals.
The first section of my portfolio contains my
r to make the most out of a restaurant business and make a name in the industry, it is advisable for new entrepreneurs contemplating to establish their businesses in the food industry to conduct a detailed study of the success stories of the past. To facilitate them with this
1 Pages(250 words)Essay
GOT A TRICKY QUESTION? RECEIVE AN ANSWER FROM STUDENTS LIKE YOU!
Let us find you another Essay on topic Introduction for FREE!