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Why digital signal processing is important?

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Description : What is the use of digital signal processing?

Description : How does signal processing work?

Description : Can you convert analog signal to digital?

Description : What are the advantages of a digital signal?

Answer : It  has   only   two  variable   input  and  output (low   or    high)   (0  or    5).

Description : What do you mean by signal processing?

Description : Integration of step signal gives (A) Impulse signal. (B) Ramp function. (C) Parabola. (D) Square pulse.

Answer : Integration of step signal gives Ramp function.

Description : What are digital signals used for?

Description : Why is electromagnetism so important?

Answer : Power quality is important because the electrical appliances will works better and will be safer and less loss in energy. Low energy waste and improves stability of power system .

Description : why vlsi is important in modern days ?

Answer : Because the use of VLSI is increasing in modern days. Technology is getting advanced day by day. More and more features are adding in small chips.

Description : Which of the following is the product of data processing:  (A) Information (B) Data (C) Software programme (D) System

Answer : Which of the following is the product of data processing: Information 

Description : Which of the following are components of Central Processing Unit (CPU)?  (A) Arithmetic logic unit, Mouse  (B) Arithmetic logic unit, Control unit  (C) Arithmetic logic unit, Integrated Circuits  (D) Control Unit, Monitor

Answer : Which of the following are components of Central Processing Unit (CPU)?  (A) Arithmetic logic unit, Mouse  (B) Arithmetic logic unit, Control unit  (C) Arithmetic logic unit, Integrated Circuits  (D) Control Unit, Monitor

Description : 7.24 Consider the finite-duration signal x(n) = {1,2,3,1} (a) Compute its four point DFT by solving explicitly the 4-by-4 system of linear equations defined by the inverse DFT formula. (b) Check the answer in part (a) by computing the four-point DFT, using its defination.

Answer : Handwritten Solution for Problem Number 7.24 from Digital Signal Processing 4th edition By John G. Proakis

Description : Important Abbreviations

Answer : Important Abbreviations Abbreviations are extremely important to learn. You need to use abbreviations in your daily communication models. However, it is also important to update yourself with respect to ... Atomic Research Centre 44. BBC - British Broadcasting Corporation 45. BC - Before Christ

Description : Important Terms in Magnetic Circuit

Answer : Important Terms in Magnetic Circuit

Description : List three important characteristics of an electric circuit.

Answer : The power loss is an important factor for the design of transmission line.

Description : State different types of electrical signal and draw all types of waveforms.

Answer : Types of electrical signals 1) Sine wave 2) Triangular wave 3) Square wave Waveforms

Description :  basic characteristics of sound signal.

Answer : Level and loudness: The amplitude of a sound wave determines its loudness or volume. A larger amplitude means a louder sound, and a smaller amplitude means a softer sound. The loudness of a ... the reproducing system should be capable of handling the maximum and minimum power in the same ratio. 

Description : What is the significance of signal conditioner? Explain the need of following in mechatronics system. i) Isolator ii) Filter iii) Amplifier iv) Data converter

Answer : Significance: Signal conditioning means manipulating an analog signal in such a way that it meets the requirements of the next stage for further processing. Signal inputs accepted by signal ... -frequency converters, current-to-voltage converters, current loop converters, and charge converters.  

Description : List different methods of demodulation of FM signal.

Answer : Balanced Slope detection Ratio detector Foster Seeley discriminator Phase locked loop demodulator 

Description : For a signal conditioner explain the terms linearization and signal conversion.

Answer : Definition :  1. linearization : Many primary elements produce nonlinear outputs and the signal must be linearized to produce a nearly ideal calibration. Specialized analog circuits such as offsetting circuits, ... signal. Even computer algorithms are also used. 2.Signal conversion :

Description : Analog signal

Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Description :  If it takes a transmitted signal 1m sec to go up to the target and come back after reflection, how far is the transmitter from the target? A) 150 Km B) 150 m C) 15 Km D) 1500 m 

Answer :  If it takes a transmitted signal 1m sec to go up to the target and come back after reflection, how far is the transmitter from the target? A) 150 Km B) 150 m C) 15 Km D) 1500 m 

Description : In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine on address A) 0000 H B) 002C H C) 0024 H D) 0004 H

Answer : In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine on address 0024 H

Description :  If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be A) Large in amplitude B) Small in amplitude C) Distorted D) Distortion less

Answer :  If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be Distorted 

Description : The sampling rate to avoid aliasing for the signal m(t) = 100 cos 200ωt will be A) ≥1/25 sec B) ≥1/50 sec C) ≤1/25 sec D) ≤ 1/50 sec

Description :  An energy signal has G(f) = 20. Its energy density spectrum is A) 20 B) 100 C) 400 D) 800  

Answer :  An energy signal has G(f) = 20. Its energy density spectrum is 400 

Description : What is the Laplace transform of step signal of 5 units magnitude?  A) 5s B) 5/s C) s/5 D) 1/s 

Answer : What is the Laplace transform of step signal of 5 units magnitude?  A) 5s B) 5/s C) s/5 D) 1/s 

Description : The time base signal in Cathode Ray Oscilloscope (CRO) is  (1) A square wave signal (2) A sawtooth signal (3) A triangular wave signal (4) A sinusoidal signal

Answer : 2 Saw tooth 

Description : The standard for long distance analog signal transmission in process control industry is (A) 4-20 mV (B) 0-20 mA (C) 4-20 mA (D) 0-5 V

Answer : The standard for long distance analog signal transmission in process control industry is 4-20 mA

Description : What is a signal in science?

Description : What do you mean by signal and system?

Description : Explain transformer isolated drive circuits providing both signal and power.

Description : What is the use of signal flow graph?

Description : working of Digital camcoder.

Answer : Explanation: Figure shows the functional block diagram of a digital camcorder system. Light from the optical lens assembly projects an image onto the charged coupled device (CCD) imager ... data from the recording medium are demultiplexed and decompressed and fed into the EVF for display.

Description : Compare analog and digital instruments .

Answer : Parameter Analog Instrument Digital Instrument  1 Principle The instrument that displays analog signals is called as on analog instrument.  The instrument that displays ... , etc. Logical analyzer, signature analyzer, computers, microprocessor based instruments, etc. 

Description : Compare analog CRO with digital storage oscilloscope (DSO).

Answer : Analog CRO DSO 1 High bandwidth Less bandwidth due to aliasing effect 2 High  writing speed about 15 GHz Limited speed 3 No memory Has memory ... Less storage time. The digital oscilloscope is  capable of an infinite storage time, using its digital memory.

Description : Principal of digital frequency meter.

Answer : The basic block diagram of basic digital frequency meter (DFM) is shown in above figure. The signal whose frequency we have to be measured is first to be amplified through amplifier. The output of amplifier ... = Number of counts. t = Time interval between start and stop condition of the gate.

Description : Advantages of digital instruments

Answer : 1. They are having high input impedance, so there is no loading effect 2. They are having higher accuracy 3. An unambiguous reading is obtained 4. The output can be interfaced with external equipment 5. They are available in smaller size . 

Description : Write example of each type (i) Primary transducer (ii) Active transducer (iii) Electrical transducer (iv) Digital transducer

Answer : (i) Active transducer:-Thermocouple, piezoelectric, photovoltaic cell (ii) Primary transducer:- Bourdon tube, bellows, (iii) Electrical transducer.:- LVDT,RVDT, Hall effect, strain gauge, ... , optical pyrometer, radiation pyrometer (iv) Digital transducer:- Linear Encoder, digital taco generator

Description : Blackt Electrotech 230V 24x7 Energy Saving Socket Type Digital Programmable Plastic Electronic Timer (White)

Answer : Buy from amazon: https://amzn.to/2SUTSdv Buy: http://bit.ly/2ZqlAkS

Description : Describe block diagram of digital comparator and write truth table of 2 bit comparator.

Answer : Digital comparator is a combinational circuit which compares two numbers, A and B; and evaluates their relative magnitudes. The outcome of the comparison is given by three binary variables which indicate whether A ... Depending on the result of comparison one of these outputs will go high.

Description : State two advantages of digital system over analog system.

Answer : 1. They are less susceptible to noise. 2. The effect of fluctuation in the characteristic of the components, ageing of components etc. is very small in digital circuits. 3. Digital circuits have capability of memory which makes them suitable for computers. 4. More accurate.

Description : The first digital electronic computer was built in the year________  A. 1950 B. 1960 C. 1940 D. 1930

Answer : The first digital electronic computer was built in the year 1940 

Description : Write any two advantages of digital energy meter.

Answer : Advantages of Digital Energy Meter: 1) Easy to read. 2) High accuracy 3) High resolution. 4) No frictional losses as there are no moving parts. 5) No requirement for external adjustments. 6) Large ... due to absence of moving parts. 7) Highly efficient. 8) Very much compact. 9) Good reliability.

Description : Compare analog & digital multimeter.

Answer : Analog multi-meter DMM Power supply is not required  Power supply is required  Less suffered from electric noise  More suffered from electric Noise Less isolation problems. More ... visual indication Visual indication is not that much better. Less cost More cost

Description : State two advantages of digital circuits.

Answer : Advantages of Digital Circuits: i) Digital circuits are easier to design. ii) Information storage is easy. iii) Accuracy and precision are greater. iv) Less affected by noise. v) Reliability is more

Description : State the applications of digital electronics.

Answer : 1. The processor, graphics controller are built on principles of digital electronics. 2. In Computers, tablet, displays, LCD/LED TV. 3. mobile/smart phone, , computer ,keyboard, mouse 4. speed/ ... bike/car, various control of the car, 5. ATM machines, credit /debit cards 6. Telephone exchange

Description :  Can we create a digital circuit that has as inputs the  3- bit digital words [2: 0] A, [2: 0] B and [2: 0] C and its output is  equal to      |C-A-B| . The circuit of the binary full adder is known.

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