Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Explain phase-shift keying?
In PSK, the phase angle of a carrier is keyed between two values. When the values are separated by π radians, it is known as phase-reversal keying (PRK). The PSK waveform in the bit interval is given by
Equation can be viewed as a carrier Ac cos(ωct + φc) modulated in amplitude by a digital signal d(t) with amplitudes of 1 when the binary digit in the bit interval is 1 and 0, respectively. Figure illustrates the functions of a coherent PSK communication system, which is similar to the ASK system of Figure with the following differences:
• The received signal is now given by
• A gain of 2 is assigned to the integrator.• A threshold is absent when binary digits 0 and 1 occur with equal probability.
No truly noncoherent PSK version is possible because the PSK signal carries its information in the carrier's phase, whereas a noncoherent system purposely disregards phase and operates only on signal amplitude.
Q. The speed of an 8-bit A/D converter is limited by the counter, which has a maximum speed of 4 × 10 7 counts per second. Estimate the maximum number of A/D conversions per secon
how fet transistor works in self bias
1. Describe the magnetic effects of current? ( to achieve a pass grade, describe the magnetic effect of current) 2. Complete the diagram to show the direction of mo
Q. Draw a centralized SPC organization. Ans: A dual processor architecture can be configured to operate in one of three modes: (i) Standby mode (ii) Synchronous dupl
There is a limitation on the size of data. Most Microprocessor does not maintain floating-point operations.
Voltages source inverter ( VSI) A voltage source inverter is a constant voltage source which is having negligible impedance. In these inverters the amplitude of output
Partial derivatives - Transistor hybrid model: The partial derivatives are taken by keeping the collector voltage or base current constant as pointed out by the subscript atta
Mode 1 ( 0 By applying a positive output pulse of the pulse width modulator to the transistor Q 1 it gets turned on. An input current in flows through V in Q 1
Considering Figure, let balanced positive-sequence, three-phase voltages with ¯V AB = 100√3 0° V (rms) be applied to terminals A, B, and C. The three-phase wye-connected balanced
real time uses of norton''s theorem
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd