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 Interview Questions for Communication  System Designer Q-1: What is frequency shifting in the Frequency domain. How we can realize it practically. Q-2: What are signal and system can you explain with examples. Q-3: What is the Fourier series and Fourier Transform. Q-4: How we can analyze Noise in the communication system in terms of a wired and non-wired Communication system. Q-5: Why the autocorrelation function of white noise is impulse.  Q-6: Which techniques we can expand signal in terms of complex exponential signal. Q-7: What is output when periodic signal transmits through LTI system.

A mixed-signal integrated circuit combines analog circuits with digital signal processing (DSP) circuits on a single semiconductor die . An integrated circuit that includes both analog and digital circuitry (but no DSP), like a 555 timer, is generally not considered a mixed-signal integrated circuit. Typically, mixed-signal chips perform some whole function or sub-function in a larger assembly such as the radio subsystem of a cell phone, or the read data path and laser sled control logic of a DVD player. They often contain an entire system-on-a-chip. Examples of mixed-signal integrated circuits include data converters using delta-sigma modulation, analog-to-digital converter/digital-to-analog converter especially using error detection and correction, digipot, and digital radio chips. Digitally controlled sound chips are also mixed-signal circuits. With the advent of cellular technology and network technology this category now includes a cellular telephone, software radio, LAN and W

        Standard Interview Questions for Digital System Designer Q-1: Who is MOORE'S and what is the law of he has given. Q-2: What are the Design style in VLSI Technology. Q-3: What is SoC(System On Chip)  and issue with them. Connect with me  1.Linkedln 2.Instagram 3.Facebook

Channel group delay is defined as a time difference between transmitted RF signal (measured at phase center of transmitting antenna) and signal at the output of the onboard frequency source.  There are three different delay parameters: Fixed/Bias group delay, Differential group delay and Group delay uncertainty in bias and differential value.  The Fixed delay or Hardware group delay is a bias term. It is included in the clock correction parameters transmitted in the navigation data, and is therefore accounted for by the user computations of system time. The group delay uncertainty shows the variability in the path delay due to operational environment uncertainty and other factors.  The effective uncertainty of the group delay will be in the range of 3nsec (2σ).  Differential group delay is the delay difference between two navigation signals. It consists of random plus bias components. The mean differential is defined as the bias component and will be either positive or negati