Vidyalelo
ECE · all questions

Information Theory And Coding
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

232

Questions

5/12

Page

Pick an option on a question to see the right answer and solution.

MPEG coders are used for

Select an option to see the answer and solution.

In register contents at decoder, the syndrome register consists of syndrome after all bits of received vector are clocked into the decoder . . . . . . . .

Select an option to see the answer and solution.

For designing trellis code, the emphasis must be on maximizing . . . . . . . .

Select an option to see the answer and solution.

In sphere packing, where is the received code vector with added noise located?

Select an option to see the answer and solution.

The mutual information between a pair of events is

Select an option to see the answer and solution.

Types of compression

Select an option to see the answer and solution.

Which lossy method for audio compression is responsible for encoding the difference between two consecutive samples?

Select an option to see the answer and solution.

Assuming that the channel is noiseless, if TV channels are 8 kHz wide with the bits/sample = 3Hz and signalling rate = 16 × 106 samples/second, then what would be the value of data rate?

Select an option to see the answer and solution.

In Frame Check Sequence (FCS), which code is used if character length is 6 bit and generates 12 bit parity check bits?

Select an option to see the answer and solution.

A source alphabet consists of N symbols with the probability of the first two symbols being the same. A source encoder increases the probability of the first symbol by a small amount ε and decreases that of the second by ε. After encoding, the entropy of the source

Select an option to see the answer and solution.

Huffman coding technique is adopted for constructing the source code with . . . . . . . . redundancy.

Select an option to see the answer and solution.

I-frame is

Select an option to see the answer and solution.

The self information of random variable is

Select an option to see the answer and solution.

During the shifting of bits in an encoder, how are the transitions in the states represented?

Select an option to see the answer and solution.

In a Direct Sequence CDMA system the chip rate is 1.2288 × 106 chips per second. If the processing gain is desired to be AT LEAST 100, the data rate

Select an option to see the answer and solution.

An image uses 512 × 512 picture elements. Each of the picture elements can take any of the 8 distinguishable intensity levels. The maximum entropy in the above image will be

Select an option to see the answer and solution.

For designing a communication system, which among the following parameters should be maximum?
1. Transmission rate
2. Received signal-to-noise ratio
3. Error probability
4. Bandwidth requirement

Select an option to see the answer and solution.

Four messages band limited to W, W, 2W and 3W respectively are to be multiplexed using Time Division Multiplexing (TDM). The minimum bandwidth required for transmission of this TDM signal is

Select an option to see the answer and solution.

Which among the following represents the code in which codewords consists of message bits and parity bits separately?

Select an option to see the answer and solution.

For (n, k) binary BCH code, how are the parity check bits (n - k) specified?

Select an option to see the answer and solution.