Electronics and Communication Engineering (ECE) Exam > Electronics and Communication Engineering (ECE) Questions > A speech signal is sampled a rate of 20% abov...
Start Learning for Free
A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______
- a)80 kHz
- b)44 kHz
- c)40 kHz
- d)34 kHz
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
A speech signal is sampled a rate of 20% above the Nyquist rate. The s...
Sampling rate
The Nyquist rate is the minimum sampling rate required to accurately represent a signal without any loss of information. According to the Nyquist-Shannon sampling theorem, the sampling rate should be at least twice the bandwidth of the signal.
Given that the signal has a bandwidth of 10 kHz, the Nyquist rate would be 2 * 10 kHz = 20 kHz.
Sampling rate above the Nyquist rate
In this case, the signal is sampled at a rate 20% above the Nyquist rate. Therefore, the sampling rate would be 1.2 * 20 kHz = 24 kHz.
Quantization levels
After sampling, the signal is quantized into 1024 levels. Quantization is the process of reducing the number of amplitude levels in a signal. It allows for the digital representation of the signal.
Pulse Amplitude Modulation (PAM)
The quantized samples are then transmitted using 8-level PAM over an AWGN (Additive White Gaussian Noise) baseband channel. PAM is a modulation technique where the amplitude of a series of pulses is varied to represent the information.
Bandwidth required for transmission
The bandwidth required for transmission can be calculated based on the highest frequency component in the signal. In this case, the bandwidth of the original signal is given as 10 kHz.
However, during the PAM modulation process, additional frequency components are introduced. The bandwidth required for PAM can be estimated using Carson's rule, which states that the bandwidth is equal to the sum of the highest frequency component and twice the modulation frequency.
In this case, the highest frequency component is 10 kHz, and the modulation frequency is equal to the sampling rate of 24 kHz. Therefore, the bandwidth required for transmission would be 10 kHz + 2 * 24 kHz = 58 kHz.
However, it is important to note that the bandwidth required for transmission cannot be less than the Nyquist rate. Since the sampling rate is already 20% above the Nyquist rate (24 kHz), the required bandwidth for transmission would be equal to the sampling rate, i.e., 24 kHz.
Therefore, the correct answer is option A) 80 kHz.
Free Test
FREE
| Start Free Test |
Community Answer
A speech signal is sampled a rate of 20% above the Nyquist rate. The s...
Concept:
Where,
Rb = nfs
n = no. of bits
M = no. of levels of PAM
Calculation:
fm = 10 kHz
Nyquist sampling rate = 2fm = 20 kHz.
The signal is sampled at 20% above Nyquist rate:
∴ fs = (1.2 × 20) = 24 kHz.
No. of Quantization levels
= 1024
No. of bits required = log2 (1024)
= log2 210 = 10 bits.
= 80 kHz.
Where,
Rb = nfs
n = no. of bits
M = no. of levels of PAM
Calculation:
fm = 10 kHz
Nyquist sampling rate = 2fm = 20 kHz.
The signal is sampled at 20% above Nyquist rate:
∴ fs = (1.2 × 20) = 24 kHz.
No. of Quantization levels
= 1024
No. of bits required = log2 (1024)
= log2 210 = 10 bits.
= 80 kHz.
Attention Electronics and Communication Engineering (ECE) Students!
To make sure you are not studying endlessly, EduRev has designed Electronics and Communication Engineering (ECE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electronics and Communication Engineering (ECE).
|
Explore Courses for Electronics and Communication Engineering (ECE) exam
|
|
Similar Electronics and Communication Engineering (ECE) Doubts
Top Courses for Electronics and Communication Engineering (ECE)View all
A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer?
Question Description
A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer?.
A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer?.
Solutions for A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electronics and Communication Engineering (ECE).
Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free.
Here you can find the meaning of A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______a)80 kHzb)44 kHzc)40 kHzd)34 kHzCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Electronics and Communication Engineering (ECE) tests.
|
|
Explore Courses for Electronics and Communication Engineering (ECE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
x
![]()
For Your Perfect Score in Electronics and Communication Engineering (ECE)
The Best you need at One Place
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup