Engineering, 03.03.2020 04:31 davidebner2248

You are to design a digital communication system to transmit four multiplexed analog signals with bandwidths of 1200 Hz, 900 Hz, 300 Hz and 1500 Hz, respectively. Each analog signal is to be sampled at its own respective Nyquist rates and encoded using linear PCM. The maximum tolerable error for each sample is 1% of the signal's peak voltage (Vo).
(a) What is the minimum PCM word size (bits per sample) required?
(b) What is the minimum transmitted bit rate for each of the sampled signals?
(c) Assume the signals are multiplexed on a sample-by-sample basis (each PCM sample is considered a unit not to be divided between frames). If 10 bits per frame are added for synchronization, what is the minimum frame size required (bits)? How many samples from each signal are included in each frame?
(d) What is the transmitted frame rate of the frame defined in part (c) in frames per second? What is the overall transmitted bit rate of the multiplexed digital communication system (bits per second)?

Answers: 1

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Answers: 2

Answer

Engineering, 04.07.2019 18:10

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.

Answers: 2

Answer

Engineering, 04.07.2019 18:10

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Answers: 2

Answer

Engineering, 04.07.2019 18:20

Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives

Answers: 2

Answer

You know the right answer?

You are to design a digital communication system to transmit four multiplexed analog signals with ba...

Questions