viterbi decoder

What is the Viterbi algorithm used for?

• A. Speech recognition
• B. Image processing
• C. Error correction in digital communication
• D. All of the above

Who developed the Viterbi algorithm?

• A. Andrew Viterbi
• B. Claude Shannon
• C. Alan Turing
• D. Richard Hamming

What is the time complexity of the Viterbi algorithm?

• A. O(N^2)
• B. O(NlogN)
• C. O(N)
• D. O(logN)

What is the principle behind the Viterbi algorithm?

• A. Maximum a posteriori probability
• B. Maximum likelihood estimation
• C. Minimum mean squared error
• D. Kalman filtering

In the Viterbi algorithm, what does the trellis represent?

• A. The possible state transitions in the system
• B. The received signal samples
• C. The channel coding used in the system
• D. The a priori probabilities of the states

How does the Viterbi algorithm select the most likely sequence of states?

• A. By computing the likelihood of each possible sequence
• B. By computing the posterior probability of each possible sequence
• C. By backtracking from the final state in the trellis
• D. By randomly selecting a sequence from the set of possible sequences

What is the primary use of Viterbi Decoder?

• A. Data encryption
• B. Data transmission
• C. Data compression
• D. Data decoding

Given a trellis diagram with 8 states, how many possible paths can the Viterbi algorithm consider when decoding a data sequence?

• A. 8
• B. 16
• C. 32
• D. 64

How does the Viterbi algorithm determine the most likely sequence of data bits?

• A. By analyzing the input and output of the system
• B. By calculating the probability of each possible sequence
• C. By comparing the input and output of the system
• D. By analyzing the trellis diagram

What is the significance of the trellis diagram in Viterbi decoding?

• A. It represents the possible states of a system
• B. It represents the probability of the system being in a particular state
• C. It represents the transitions between the states of a system
• D. It represents the input and output of a system