Digital Communications Waveform Coding Online Exam Quiz

Digital Communications Waveform Coding GK Quiz. Question and Answers related to Digital Communications Waveform Coding. MCQ (Multiple Choice Questions with answers about Digital Communications Waveform Coding

Examples of structured sequences are

Options

A : Block codes

B : Convolutional codes

C : Turbo codes

D : All of the mentioned

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In non orthogonal signalling as k increases there is

Options

A : Degraded error performance

B : Improved bandwidth efficiency

C : Increase in required Eb/N0

D : All of the mentioned

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Transorthogonal code is obtained by

Options

A : Deleting last digit of each orthogonal codeword

B : Deleting first digit of each orthogonal codeword

C : Doubling each digit of orthogonal codeword

D : Taking negative of each digit of orthogonal codeword

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Biorthogonal codes needs ________ bandwidth as orthogonal codes.

Options

A : Equal

B : Double

C : Half

D : Triple

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In orthogonal signalling as k increase there is

Options

A : Improved error performance

B : Degraded error performance

C : Improved bandwidth

D : None of the mentioned

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Antipodal signals are

Options

A : Mirror images

B : 1800 apart

C : One is negative of the other

D : All of the mentioned

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The smaller the cross correlation, the ______ is the distance between the signal vectors.

Options

A : More

B : Less

C : Double

D : Half

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In orthogonal signal, all cross correlation coefficients are

Options

A : One

B : Zero

C : Negative

D : None of the mentioned

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Which codes perform better?

Options

A : Orthogonal

B : Biorthogonal

C : Orthogonal & Biorthogonal

D : None of the mentioned

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Which code requires minimum Eb/N0?

Options

A : Orthogonal

B : Biorthogonal

C : Simplex

D : All of the mentioned

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