Question 1 Explain the concept of error function
Question 2 Obtain the Fourier transform for the following
- Single sided exponential signal
- Gate function
- Triangular pulse
Question 3 Explain convolution coding and decoding.
Question 4 Define the following
- Entropy and
- Information rate
Question 5 A code is composed of dot and dashes. If one dash is same as 3 dots in length and has 1/3rd the probability of occurrence
Find
- Information in dot and dash
- Average information in dot -dash code
- If dot lasts for 10 ms and 10 ms is allowed between symbols, find the average rate of information transmission