EX :(10):- A complex low-pass signal has a bandwidth of 1200 kHz. What is the minimum sampling ratefor this signal?Solution:The bandwidth of a low-pass signal is between 0 and f, where f is the maximum frequency in thesignal. Therefore, we can sample this signal at 2 times the highest frequency (1200 kHz). Thesampling rate is therefore 2400 kilo samples per second. . i.e. f;2 2fa.EX :(11) :- If you want to digitize the human voice. What is the bit rate, assuming 8 bits per sample?

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EX :(10):- A complex low-pass signal has a bandwidth of 1200 kHz. What is the minimum sampling rate for this signal? Solution: The bandwidth of a low-pass signal is between 0 and f, where f is the maximum frequency in the

EX :(10):- A complex low-pass signal has a bandwidth of 1200 kHz. What is the minimum sampling rate for this signal? Solution: The bandwidth of a low-pass signal is between 0 and f, where f is the maximum frequency in the

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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H3. a. Bandwidth of a signal in the 250…255 MHz frequency band, b. The gain in decibels of the system with an input voltage of 30mV and an output voltage of 30V, and c. Find the total gain of the system consisting of components connected in series with 20 dB gain and -10dB loss. ?
A filter is provided with a cascaded differential amplifier. The midband gain and noise coefficient of the filter are given as −3 dB and 3 dB, respectively.According to this,a) If it is known that the amplifier gain is ?1= 20 dB and the noise coefficient is ?1= 2 dB, calculate the midband gain for the entire cascaded system. Give your answers in dB
i) A communication system employs a continuous source. The channel noise is white and Gaussian. The bandwidth of the source output is 10 MHz and signal to noise power ratio at the receiver is 100. (a) Determine the channel capacity. (b) If the signal to noise ratio drops to 10, how much bandwidth is needed to achieve the same channel capacity as in (a). (c) If the bandwidth is decreased to 1 MHz, what S/N ratio is required to maintain the same channel capacity as in (a).
Question-1) A signal with a bandwidth of 14 MHz is first passed through a low filter with a cut-off frequency of S MHz. Then the signal is sampled using the minimum sampling frequency required and each sample is coded with 8 bits. Since the minimum signal to noise ratio is used to make the efficiency of this communication channel 4 bit /s /Hz, how many MHz should the bandwidth of the channel that this signal can transmit be at least? NOTE: If the information in the text and the photo is different, please solve the question using the information given in the photo. Help me please... Thank you so much.
fT = 500 MHz, rx = 300 Ω, Cμ = 0.75 pF, CGS = CGD = 2.5 pF. (a) What are the midband gain and upper-cutoff frequency for the common-emitter amplifier (a) if IC = 1 mA and βo = 100? (b) What is the gain bandwidth product for this amplifier? (c) What is the value of the current gain of the transistor at f = fH ? Make use of the CT approximation.
-MCQ- FM modulator is used to transmit a cosine message signal with 4V amplitude and 20Hz frequency. The frequency deviation constant kf = 25 Hz/V, the carrier is a cosine sign with an amplitude of 10V and a frequency of 2000Hz. The FM modulated signal is passed through a bandpass filter and 90% of the power of the modulated signal remains. What is the bandwidth of the FM modulated signal in this case? a) 240hz b) 20hz c) 100hz d)200hz
What values does the S/N take in decibels, when the VRMS of the signal is larger than the VRMS of the noise?What values does the S/N take in decibels when the VRMS of the signal is less than the VRMS of the noise?
The modulating signal that is the input into an FM modulator is m(t)=2cos(10??).a) Express the time domain expression of ?(?) signal.b) Express FM signal in terms of Bessel functions.c) Sketch the frequency spectrum of the modulated signal.d) Determine the bandwidth of ?(?) occupies 98% of the total power (Carson Rule) in the acquired spectrum.e) Determine the condition of required bandwidth of ideal BPF if at least 80% of the total power appears at the output of the filter?
Signals and Systems An analog signal is given as x(t) = 5 + 2 cos(20??) + 3 cos(400??)a) What is the bandwidth of x(t)? Determine the Nyquist sampling frequency for x(t), both in radian/sec (ws), and in Hz (Fs ).b) Formulate ?? (??), the signal sampled with the Nyquist frequency.c) Plot frequency spectrum of the sampled signal, Xp(jw).d) Determine the filter to reconstruct the signal x(t).e) Is it possible to reconstruct the signal x(t) for Ts = 0.004 [s]? State that if aliasing error occurs ornot
You have an FSK transmitter using a mark frequency of 500 kHz, a space frequency of 380 kHz, and sending 10 kbps. A) How much bandwidth do you need for your transmission? B) if you are to design the system with continuous phase shift keying in mind, what would be the value of the space frequency if the mark frequency remains the same?
A certain sampled-data system operates at a sampling rate of 10,000 sample/s. For Each case below, draw the sampled signal's spectrum up to the 2nd translated component with the corresponding appropriate frequency values.a. Determine the theoretical highest frequency in a baseband signal such that the signal could be reconstructed from samples taken by the system.b. Repeat part (a.) if a guard band of 4 kHz is to be established between the upper range of the baseband signal and the lower range of the first translated component. c. If for the same sampling rate a 6 kHz signal sampled, what range of frequencies will there be spectral overlapping?
During a vibration measurement experiment in the Mechanical Engineering Department at Hacettepe University, a piezoelectric accelerometer output is given by this mathemtaical equation: a (t) = 1 + 4 sin(43.98t) + 7sin(100.53t) in gravity acceleration (g) value. a) Determine the frequencies (in Hz) contained in the signal. Round your results to nearest integer value. b) What is the minimum sampling rate to avoid aliasing? c) Sketch clearly the frequency spectrum if the signal is sampled at 15 Hz. d) Now, the signal is filtered with a low-pass Butterworth filter to remove the maximum frequency component. It is desired to attenuate the amplitude of this component to at least 5 % of its value. If the sampling rate is now 20 Hz, what will be the order of the filter? e) If the blue one is our signal, then what is red and green ones? Write down the mathematical relation between the three signals? (Use labels as blue, red and green signal.)