QUESTION 15 1. Data compression algorithms are based on which concept(s)? a. Rem

Question

QUESTION 15

1.      Data compression algorithms are based on which concept(s)?

a. Removal of redundant data bits (e.g., “white space”)

b. Use of data formats/forms/templates so that only data, and not formatting information, is sent

c. In text documents, identifying and using common character strings and abbreviations

d. All are correct

QUESTION 18

1.     

_________ is noise caused when the frequency bandwidth of adjacent channels overlap with one another, thus causing distortion on each channel.

a. Thermal noise

b. Intermodulation noise

c. Cochannel interference

d. Impulse noise

QUESTION 19

1.     

A receive system temperature is found to be 288 Kelvin over a frequency bandwidth of 36 kHz. Determine the thermal noise in decibels.

a. -137.96 dBW

b. 158.42 dBW

c. -158.42 dBW

d. 137.96 dBW

QUESTION 20

1.     

Determine the SNR in decibels given a receive signal of 10E-6 watts, and [N]=-128 dBW.

a. 128dB

b. 48.41 dB

c. 78.41 dB

d. -98.41dB

a. Removal of redundant data bits (e.g., “white space”)

b. Use of data formats/forms/templates so that only data, and not formatting information, is sent

c. In text documents, identifying and using common character strings and abbreviations

d. All are correct

Explanation / Answer

15. answer is option(d) all are correct.

for data compression, redundant bits are removed.common words are removed from text , usage of data formats etc. happening.when deompressing it, everything will be changed into original state.

18. answer is option (b) Intermodulation noise.

Intermodulation noise happens beacuse of thr interaction between channels and it produce additional signals.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.