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Digital Communication : Puzzle 1

Ms. A. V. Thalange

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Across
4.signals obtained by encoding each quantized signal into a digital word
5.In PCM encoding, quantization level varies as a function of ________
8.A PWM signal can be generated by _____ multivibrator.
9.A PAM signal can be demodulated using _____ filter (2 Words)
10.In the eye pattern as the eye opens, ISI _______
14.Type of quantization is most preferable for audio signals for human ear. (2 Words)
15.In this, type of signals mixing is easier.
16.Equalization method which is done by tracking a slowly time varying channel response
17.In μ-law compression characteristics, we get linear amplification or uniform quantization when μ=______.
18.Choosing a discrete value that is near but not exactly at the analog signal level leads to ____ error.
19.Uniform quantization provides better quantization for ______ signals.
Down
1.In PCM the samples are dependent on ________.
2.In _____ waveform logic 1 is represented by half bit wide pulse and logic 0 is represented by absence of pulse. (2 Words)
3.Delta modulation uses _____ bits per sample.
4.These waveforms are also called as line codes. (3 Words)
6.as no. of levels _______, Quantization noise is reduced .
7.Adaptive DPCM is used to______bandwidth.
11.Process of compression of signal and then apply as a input to the uniform quantizer.
12.In a delta modulation system, ______ noise occurs when the modulating signal remains constant.
13.Number of possible digital values to represent each sample in PCM is known as (2 Words)

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