Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
radio astronomy full report


¢ Study of celestial objects in radio frequency.
¢ Require large radio telescope to observe longer wavelengths.
¢ Study of elements in universe using radio telescope.

Electromagnetic Spectrum:

The electromagnetic spectrum includes radio frequency (RF), infrared (IR), visible light, ultraviolet (UV), X-rays, and gamma rays.
Radiation with shorter wave length-blue light.
Radiation with longer wave length-red light.
Radio waves (EM waves) have 1mm-100km wave length.

EM radiation is emitted by two methods:

Thermal emission : depend on temperature of emitting objects.
Non-thermal emission : does not depend on temperature of emitting objects


Object with temperature above absolute zero emits thermal radiation.
It causes atom to move and bump one other-change the direction-emits radiations.

Blackbody radiation.

Blackbody:-absorb all radiation and reflects nothing.
At equilibrium temperature it re-radiates energy- Blackbody radiation.

Free-Free emission.

Occurs when gas is ionized.
when gas is ionized charged particles moves around ionized gas.
Electrons accelerated by charged particles and gas emits radiation..

Spectral Line Emission:

Involve transition of electron from higher energy level to lower energy level
Protons emits energy equal to energy difference between two levels.


Synchrotron Emission:

Does not have characteristic signature curve of blackbody radiation.
Due to the acceleration of charged particles with in the magnetic field.

Gyrosynchrotron Emission:

Emitted from pulsars (results from death of massive stars).
It posses magnetic field “accelerate electrons-emit radiations.
Appear as flash of light .


Stands for Ëœmicrowave amplification by stimulated emission of radiationâ„¢.
It occurs in molecular clouds and envelop of old stars.
It amplifies or faints emission lines at specific frequency.

Principle of operation:

The radiations on the parabolic surface is reflected to focus.
It induces an electric current to receiver.
Signal is amplified to get the image.

Two components :
1.Large radio antenna
2.sensitive radio receiver.
Sensitivity of radio telescope depend on area and efficiency of antenna.
Sensitivity of radio receiver is used to amplify the signals.

Telescope has two characteristics:

It should have large collecting area.
Resolution should be good.
Diameter should be many times greater than wave length of radiation.

Types of telescopes:

The Very Large Array (VLA):27 antennas separated by 36km.
The Australia Telescope Compact Array (ATCA):6antenna separated by 6km.
The Giant Metrewave Radio Telescope (GMRT):30 dishes of 45meter separated by 25km.
Arecibo (biggest single dish telescope,300m).

Advantage and Disadvantage:

Not affected by the weather.
Radio telescope observe day and night.
To get good quality of images with all details is more complicated.
To produce images complicated procedure is required (observer does not see straight away the images).

Technical Innovation From Radio Astronomy:

Radio location of cell phone calls :it utilizes the difference in arrival time of calls at different towers to find locations.
Transistors and Cryogenic coolers :HEMT amplifiers are installed in antenna to improve the sensitivity.
Low noise amplifiers operates at cryogenic temperature.
Medical and scientific imaging :Used for non-invasive measurement of temperature of subcutaneous human tissue.

Emerging Technologies:

Communications Disruptive Warning and Prevention of Damage from Solar Flares.
Grid Computing Applications.
Laser Metrology and Precision Rangefinders.


Requires collaborative effort and greater funding.
Only a few endeavors lead to useful and marketable technologies-radio astronomy is one among them.
I [/b]GAURAV KUMAR student of B.TECH final year of ELECTRONICS & COMMUNICATION need full seminars report on radio astrony so pls send me the full seminars report pdf
send me report pls Wink jhalamayur[at]
send me report pls Wink
please send me radio astronomy full report
please send me the full report of radioastronomy

please send me the full report of radioastronomy

to get information about the topic "radio astronomy full report" refer the link bellow


Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: astronomical telescope, radio astronomy ppt, radio astronomy in india, powered by mybb astronomy**ory in physics, radio astronomy at home, radio astronomy seminar, astronomy programs,

Quick Reply
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  wireless charging through microwaves full report project report tiger 90 54,305 27-09-2016, 04:16 AM
Last Post: The icon
  Transparent electronics full report seminar surveyer 7 12,655 13-04-2016, 10:35 AM
Last Post: dhanyavp
  Wireless Power Transmission via Solar Power Satellite full report project topics 30 39,060 30-03-2016, 03:27 PM
Last Post: dhanyavp
  surge current protection using superconductors full report computer science technology 13 17,133 16-03-2016, 12:03 AM
Last Post: computer science crazy
  paper battery full report project report tiger 56 50,359 16-02-2016, 11:42 AM
Last Post: Guest
  IMOD-Interferometric modulator full report seminar presentation 3 3,590 18-07-2015, 10:14 AM
Last Post: [email protected]
  digital jewellery full report project report tiger 36 53,452 27-04-2015, 01:29 PM
Last Post: seminar report asees
  LOW POWER VLSI On CMOS full report project report tiger 15 13,497 09-12-2014, 06:31 PM
Last Post: seminar report asees
  eddy current brake full report project report tiger 24 23,587 14-09-2014, 08:27 AM
Last Post: Guest
  dense wavelength division multiplexing full report project reporter 3 3,386 16-06-2014, 07:00 PM
Last Post: seminar report asees