TSGENCO Recruitment 2015

AAI Recruitment 2015

Digital Signal Modulations

In general modulation is defined as a process of varying one or more properties of a signal that carries information. We basically have two types of signals,ie analog signals and digital signals.
Analog Signals are continuous time varying signals where as digital signals are discrete time signals.

fig: Analog and digital signals

In olden days Analog signals were used in for transmitting information from one place to another.But it has many disadvantages like information loss and high noise while transmitting, even after demodulation the complete transmitted information could not be retrieved. So there has been a shit from analog to digital signals. with digital signals there are many advantages and because of this we see all our electronic devices relay only on digital signals and not on analog.

The digital signals are transmitted using various modulation techniques according to the requirements.In modulation the major components are Signal that carries information, modulator,transmitting medium  and demodulator.

Common modulation methods are:

• Amplitude modulation (AM), in which the height (i.e., the strength or intensity) of the signal carrier is varied to represent the data being added to the signal.
• Frequency modulation (FM), in which the frequency of the carrier waveform is varied to reflect the frequency of the data.
• Phase modulation (PM), in which the frequency of the carrier waveform is varied to reflect changes in the frequency of the data (similar but not the same as FM).
• Polarization modulation, in which the angle of rotation of an optical carrier signal is varied to reflect transmitted data.
• Pulse-code modulation in which an analog signal is sampled to derive a data stream that is used to modulate a digital carrier signal.

The main aim of modulation today is to squeeze as much data into the least amount of spectrum possible. That objective, known as spectral efficiency, measures how quickly data can be transmitted in an assigned bandwidth. The unit of measurement is bits per second per Hz (b/s/Hz). Multiple techniques have emerged to achieve and improve spectral efficiency.

Embedded jobs for Fresher in banglore

B.Tech/B.E. - Computers, Electrical, Electronics/ Telecommunication, Energy,Instrumentation PG: M.Sc - Computers, Electronics, MCA - Computers Doctorate: Any Doctorate - Any Specialization
Solid understanding and developing software for single- and multi-core CPUs
Significant C and C++ programming and software engineering

Post date: 25-09-2015

last date; as soon as possible

Qualifications: B.E/B.tech ECE

How to apply: Interested candidates should apply online.

Apply online

Electronics Engineer jobs in mcs technologies

Only Male candidates with B.E./B.Tech/ Diploma in Electronics & Communication (2011/2012/2013and 2014 passouts) can apply.
The candidate will be responsible for various RF/wireless activities like survey, planning, Installation, commissioning, spectrum analysis, Installation & Commissioning BTS sites.etc

post date: 25-09-2015

last date: as soon as possible

Qualifications: B.E/b.tech/Diploma –ECE

How to apply: interested students should apply online

Apply online

Do you know how X-rays are made?

We come across X-rays mostly in medical field,whenever our bones get damaged X-rays are taken so that we can come to know were exactly the bone has been fractured.In general X-rays used to scan the inner part of things which are invisible to our naked eyes.

   X rays are electromagnetic rays whose wave length ranges from  0.01 to 10 nanometers. 

They are produced when electrons strike a metal target. The electrons are liberated from the heated

 filament and accelerated by a high voltage towards the metal target. The X-rays are produced when the electrons collide with the atoms and nuclei of the metal target.

Due to their ability to penetrate certain materials, X-rays are used for a number of nondestructive evaluation and testing (NDE/NDT) applications, particularly for identifying flaws or cracks in structural components

Indian Army Notification for Technical Graduate Course

Hiring for HCL Technologies, ERS Division 21th September 2015, Kakinada

HCL TalentCare, a wholly-owned subsidiary of HCL Corporation, is recruiting freshers for Engineering Research and Services (ERS) Division of HCL Technologies!
Role: Full time IT/Software - ERS role at Hyderabad, Bangalore & Chennai
Eligibility: BE/ B.Tech (CS, IT, ECE, EEE, E&I), 2014 & 2015 pass-outs, with 60% or above in Class X, Class XII and Graduation (No arrears or back logs)
Training Location: HCL TalentCare Hyderabad Campus
Course Duration: 3 months on-campus residential training + 3 months OJT (with Stipend)
Date & Time: September 21, 2015 at 09:00 a.m.
Venue: Aditya Group Of Institutions,
ADB Road,Aditya Nagar,Surampalem,East-Godavari District,
Peddapuram,Andhra Pradesh 533437.

CLICK TO APPLY

How Antenna can be made ?

Mindtree freshers recruitment for engineers Btech,BE,

Selected candidates would be assigned to any of Mindtree’s client projects across the industry groups of BFSI / Travel & Transport / Hi-Tech / Consumer, Retail & Manufacturing
2015 batch BE/BTech (CS, IT, ECE, Telecom, Instrumentation)
Good academics (65% and above in Xth/ XIIth and graduation)

Post date: 15-09-2015

Last date: 20-09-2015

Qualifications; B.E/B.tech

How to apply: interested candidates should apply online.

Apply online

ERICSSON Pooled Off-Campus Interview for 2014 and 2015 passed out students on 19-09-2015.

Venue: KNOWLEDGE INSTITUTE OF TECHNOLOGY Department of Training and Placement Cell, KIOT Campus, Kakapalayam (Po.), Salem – 637 504. Website: www.kiot.ac.in.

Post date: 14-09-2015

Last date: 16-09-2015

Qualifications: B.E/B.Tech

How to apply: interested candidates should apply online

Apply online

Intel Design engineers job for electronics fresher's

MS/M.Tech in electrical engineering, Electronics Engineering or related disciplines with at least 0-2 years of experience knowledge with the overall silicon implementation flows and methodologies such a synthesis, place & route, clocking and static timing analysis is required. In depth understanding on digital fundamentals, device level details and communication skills are a must.

Post date: 14-09-2014

last date: as soon as possible

Qualifications: M.E/M.Tech/MS electronics

How to apply: Interested candidates should apply online

Apply online

ONGC 2015 recruitment of various jobs for engineers

Graduate Trainees Jobs opportunity in Oil and Natural Gas Corporation Ltd. (ONGC) through GATE-2016 for various engineering branches

Post date: 12-09-2015

Qualifications: B.E/B.tech

How to apply: Interested candidates should apply online

Apply online

Associate Engineer Design & Development jobs in siemens

Prospective developer is primarily responsible for the software development B.E. / B. Tech / MCA/ M. Tech (Computer Science/Electronics & Communication/Electrical).

post name: Associate engineer

Qualifications: B.E. / B. Tech / MCA/ M. Tech (Computer Science/Electronics & Communication/Electrical).

How to apply: interested candidates should apply online

Apply online

Robert bosch jobs for electronics

Robert Bosch Engineering and Business Solutions Ltd is a 100% subsidiary of Robert Bosch GmbH in India. We provide engineering & business services to the Bosch World such as ECU development for automotive, industrial, consumer goods & building technology, as well as IT Services, Process Consulting, Mechanical Engineering, VLSI Services, Shared Services Accounting, & Translation/ Documentation.

post date: 08-09-2015

Last date: 25-10-2015

Qualifications: B.E/B.Tech

How to apply: interested candidates should apply online

Apply online

BDL Management trainee MT Electronics syllabus

Engineering Mathematics

Linear Algebra: Vector space, basis, linear dependence and independence, matrix algebra,

eigenvalues and eigen vectors, rank, solution of linear equations –existence and uniqueness.

Calculus: Mean value theorems, theorems of integral calculus, evaluation of definite and

improper integrals, partial derivatives, maxima and minima, multiple integrals, line, surface and

volume integrals, Taylor series.

Differential Equations: First order equations (linear and nonlinear), higher order linear

differential equations, Cauchy's and Euler's equations, methods of solution using variation of

parameters, complementary function and particular integral, partial differential equations,

variable separable method, initial and boundary value problems.

Vector Analysis: Vectors in plane and space, vector operations, gradient, div

ergence and curl, Gauss's, Green's and Stoke's theorems.

Complex Analysis: Analytic functions, Cauchy's integral theorem, Cauchy's integral

formula; Taylor's and Laurent's series, residue theorem.

Numerical Methods: Solution of nonlinear equations, single and multi-step methods for

differential equations, convergence criteria.

Probability and Statistics: Mean, median, mode and standard deviation; combinatorial

probability, probability distribution functions -binomial, Poisson, exponential and normal;

Joint and conditional probability; Correlation and regression analysis.

Networks, Signals and Systems

Network solution methods: nodal and mesh analysis; Network theorems: superposition,

Thevenin and Norton’s, maximum power transfer; Wye-Delta transformation; Steady state

sinusoidal analysis using phasors; Time domain analysis of simple linear circuits; Solution of

network equations using Laplace transform; Frequency domain analysis of RLC circuits;

Linear 2-port network parameters: driving point and transfer functions; State equations for networks.

Continuous-time signals: Fourier series and Fourier transform representations, sampling theorem and applications;

Discrete -time signals: discrete-time Fourier transform (DTFT), DFT, FFT, Z-transform, interpolation of discrete-time signals; LTI systems: definition and properties, causality, stability, impulse response, convolution, poles and zeros, parallel and cascade

structure, frequency response, group delay, phase delay, digital filter design techniques.

Electronic Devices

Energy bands in intrinsic and extrinsic silicon; Carrier transport: diffusion current, drift current

, mobility and resistivity; Generation and recombination of carriers; Poisson and continuity

equations; P-N junction, Zener diode, BJT, MOS capacitor, MOSFET, LED, photo diode and

solar cell; Integrated circuit fabrication process: oxidation, diffusion, ion implantation,

photolithography and twin-tub CMOS process.

Analog Circuits

Small signal equivalent circuits of diodes, BJTs and MOSFETs; Simple diode circuits:clipping,

clamping and rectifiers; Single-stage BJT and MOSFET amplifiers: biasing, bias stability, mid

-frequency small signal analysis and frequency response; BJT and MOSFET amplifiers: multi

-stage, differential, feedback, power and operational; Simple op-amp circuits; Active filters;

Sinusoidal oscillators: criterion for oscillation, single-transistor and opamp configurations;

Function generators, waveshaping circuits and 555 timers; Voltage reference circuits; Power

supplies: ripple removal and regulation.

Digital Circuits

Number systems; Combinatorial circuits: Boolean algebra, minimization of functions using

Boolean identities and Karnaugh map, logic gates and their static CMOS implementations,

arithmetic circuits, code converters, multiplexers, decoders and PLAs; Sequential circuits:

latches and flip-flops, counters, shift-registers and finite state machines; Data converters: sample and hold circuits, ADCs and DACs; Semiconductor memories: ROM, SRAM, DRAM;

8-bit microprocessor (8085): architecture, programming, memory and I/O interfacing.

Control Systems Basic control system components; Feedback principle; Transfer function; Block diagram representation; Signal flow graph; Transient and steady-state analysis of LTI systems; Frequency response; Routh-Hurwitz and Nyquist stability criteria; Bode and root

-locus plots; Lag, lead and lag-lead compensation; State variable model and solution of state equation of LTI systems.

Communications

Random processes: autocorrelation and power spectral density, properties of white noise,

filtering of random signals through LTI systems; Analog communications: amplitude modulation

and demodulation, angle modulation and demodulation, spectra of AM and FM, superheterodyne receivers, circuits for analog communications; Information theory: entropy, mutual information and channel capacity theorem; Digital communications: PCM, DPCM, digital modulation schemes, amplitude, phase and frequency shift keying (ASK, PSK, FSK), QAM, MAP and ML decoding, matched filter receiver,calculation of bandwidth, SNR and BER for digital

modulation; Fundamentals of error correction, Hamming codes; Timing and frequency

synchronization, inter-symbol interference and its mitigation; Basics of TDMA, FDMA and

CDMA.

Electromagnetics

Electrostatics; Maxwell’s equations: differential and integral forms and their interpretation,

boundary conditions, wave equation, Poynting vector; Plane waves and properties: reflection and refraction, polarization, phase and group velocity, propagation through

various media, skin depth; Transmission lines: equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart; Waveguides: modes, boundary conditions, cut-off frequencies, dispersion relations;

Antennas: antenna types, radiation pattern, gain and directivity, return loss, antenna arrays; Basics of radar; Light propagation in optical fibers

pamar group recruitment for electronics

Pamar Group released 8900 Jobs Recruitment Notification 2015 officially on both web & print media.

Post date: 04-09-2015

Last date: 20-09-2015

qualifications: diploma/b.e/b.tech ece

How to apply: interested students should send application which was given in the website by 20-09-2015

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Know about MATLAB

Every ECE Student will come across this subject in his/her academics,but do you know the significance of this subject? If you don't know, go through these lines below.....

The name MATLAB stands for matrix laboratory. MATLAB was originally written to provide easy access to matrix software developed by the LINPACK and EISPACK projects, which together represent the state-of-the-art in software for matrix computation.

MATLAB is a high-performance language for technical computing. It integrates computation, visualization, and programming in an easy-to-use environment where problems and solutions are expressed in familiar mathematical notation.

Typical uses include:
  * Math and computation
  * Algorithm development
  * Modeling, simulation, and prototyping
  * Data analysis, exploration, and visualization
  * Scientific and engineering graphics

MATLAB is an interactive system whose basic data element is an array that does not require dimensioning. This allows you to solve many technical computing problems, especially those with matrix and vector formulations, in a fraction of the time it would take to write a program in a scalar noninteractive language such as C or Fortran.

MATLAB has evolved over a period of years with input from many users. In university environments, it is the standard instructional tool for introductory and advanced courses in mathematics, engineering, and science. In industry, MATLAB is the tool of choice for high-productivity research, development, and analysis.

MATLAB features a family of application-specific solutions called toolboxes. Very important to most users of MATLAB, toolboxes allow you to learn and apply specialized technology. Toolboxes are comprehensive collections of MATLAB functions (M-files) that extend the MATLAB environment to solve particular classes of problems. Areas in which toolboxes are available include signal processing, control systems, neural networks, fuzzy logic, wavelets, simulation, and many others.