During the measurement, power signal from sensor reading is 10 dB (decibels), and the noise power is 2 dB. Calculate S/N ratio. If root mean square signal from sensor is 20mV, estimate root mean square signal from noise. а.
During the measurement, power signal from sensor reading is 10 dB (decibels), and the noise power is 2 dB. Calculate S/N ratio. If root mean square signal from sensor is 20mV, estimate root mean square signal from noise. а.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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![Q.3
During the measurement, power signal from sensor reading is 10 dB (decibels), and
the noise power is 2 dB. Calculate S/N ratio. If root mean square signal from sensor
is 20mV, estimate root mean square signal from noise.
a.
b.
Figure Q.3b shown three types of noise.
i. Name these type of signals.
ii. Provide method to reduce these noise.
a)
b)
16
14
12
02
Amplitude time domain of
waveform (Hz)
Frequency (Hz)
(c)
100
10
Bandwidth
1MHE
100 kH
10 kHz
100 Hz
0.01
LO01
10
100
1,000
Resistance (2)
Figure Q.3b
A system receiver has a resistance 10 kQ and 20 k2 in serial. Calculate the root mean
square thermal noise voltage for the operating temperature 32°C, Boltzmann's
constant is 1.38x10-23 and frequưency bandwidth is 10 MHz.
c.
Amplitude](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffa326aca-745f-410c-a63e-6ad225fdb3f7%2Fb80570ba-d2b2-4f78-9a1c-6c8eb659cf3c%2Fr5hf39_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q.3
During the measurement, power signal from sensor reading is 10 dB (decibels), and
the noise power is 2 dB. Calculate S/N ratio. If root mean square signal from sensor
is 20mV, estimate root mean square signal from noise.
a.
b.
Figure Q.3b shown three types of noise.
i. Name these type of signals.
ii. Provide method to reduce these noise.
a)
b)
16
14
12
02
Amplitude time domain of
waveform (Hz)
Frequency (Hz)
(c)
100
10
Bandwidth
1MHE
100 kH
10 kHz
100 Hz
0.01
LO01
10
100
1,000
Resistance (2)
Figure Q.3b
A system receiver has a resistance 10 kQ and 20 k2 in serial. Calculate the root mean
square thermal noise voltage for the operating temperature 32°C, Boltzmann's
constant is 1.38x10-23 and frequưency bandwidth is 10 MHz.
c.
Amplitude
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