PPM & PCM

The pulse position modulation waveform can be obtained by inverting and differentiating the pulse width modulation waveform. State True or False.

• True

• False

When a sine waveform is given input to the differentiator circuit, what will be the resultant output waveform

• sine

• cosine

• tan

• cosec

The bandwidth of the pulse amplitude modulation is _________________ than the pulse position modulation.

• higher

• lower

• equal

• not-equal

Verify Sampling Theorem?

• Fs>=2Fm

• Fs=2Fm

• Fs<=2Fm

• Fs<2Fm

Mid-tread Quantizer is ______________

• the origin lies in the middle of a tread of the staircaselike graph.

• the origin does not lies in the middle of a tread of the staircaselike graph.

• the origin lies in the middle of a rising part of the staircaselike graph.

• the origin does not lies in the rising part of the staircaselike graph.

Mid-rise Quantizer is ______________

• the origin lies in the middle of a tread of the staircaselike graph.

• the origin does not lies in the middle of a tread of the staircaselike graph.

• the origin lies in the middle of a rising part of the staircaselike graph.

• the origin does not lies in the rising part of the staircaselike graph.

_________________ the error or distortion introduced due to overlapping of adjacent spectrums when the sampling is performed at a rate which is lower than the Nyquist rate.

• Aliasing

• sampling

• quantization

• noise