Noise Radar Technology
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
computer science crazy
Super Moderator

Posts: 3,048
Joined: Dec 2008
28-11-2009, 07:17 PM


Noise radar technology (NRT) is based on using a continuous (or quasi-continuous) noise signal (CNS) as a sounding one and correlation (or double spectral) processing of reflected radar signals for their optimal reception (matched filtering). NRT shows much promise for the application in the near-field radar and is adequate to the present-day microwave and electronic technologies. There are two types of noise radars. One of them utilizes the correlation processing of reflected signals, and another is based on the so-called double spectral processing. As shown in experiments, NRT can be successfully used by developing radars for various civil applications, e.g. anticollision systems, automated traffic control, obtaining the images by ground-based synthetic aperture radars automated aircraft landing and ship mooring
Use Search at wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
seminar paper
Active In SP

Posts: 6,455
Joined: Feb 2012
15-03-2012, 03:54 PM

Radar Technology

.docx   RADAR-TECHNOLOGY.docx (Size: 254.32 KB / Downloads: 47)

The following figure shows the operating principle of a primary radar set. The radar antenna illuminates the target with a microwave signal, which is then reflected and picked up by a receiving device. The electrical signal picked up by the receiving antenna is called echo or return. The radar signal is generated by a powerful transmitter and received by a highly sensitive receiver.

The word “Radar “is an acronym derived from the words Radio Detection And Ranging. It refers to the technique of using radio waves to detect the presence of objects in the atmosphere. Radar was designed shortly before World War II. Its primary purpose was to detect the presence of aircraft. Today, radar is used for a wide array of applications, but primarily to detect precipitation and other meteorological events.
Radar is an object-detection system that uses electromagnetic waves - specifically radio waves - to identify the range, altitude, direction, or speed of both moving and fixed objects.
If you want to walk at night, you can shine a torch in front to see where you're going. The light beam travels out from the torch, reflects off objects in front of you, and bounces into your eyes. Your brain instantly computes what this means: it tells you how far away objects are and makes your body move so you don't trip over things. Radar works in much the same way.
The basic idea behind radar is very simple: a signal is transmitted, it bounces off an object and it is later received by some type of receiver. This is like the type of thing that happens when sound echo's off a wall. (Check out the image on the left) However radars don't use sound as a signal. Instead they use certain kinds of electromagnetic waves called radio waves and microwaves. This is where the name RADAR comes from (RAdio Detection And Ranging). Sound is used as a signal to detect objects in devices called SONAR (SOund NAvigation Ranging). Another type of signal used that is relatively new is laser light that is used in devices called LIDAR (you guessed it...LIght Detection And Ranging).

The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. The name radar comes from the acronym RADAR, coined in 1940 by the U.S. Navy .Several inventors, scientists, and engineers contributed to the development of radar .The first to use radio waves to detect "the presence of distant metallic objects" was Christian Hülsmeyer. Before the Second World War developments by the British, the Germans, the French, the Soviets and the Americans led to the modern version of radar.
World War II saw more rapid developments in radar technology. Both the British and the Germans were engaged in a race to produce larger and more sophisticated radars. However, the Germans were not able to fully harness it. It was the British that were able to utilize it more effectively.

• Radars create an electromagnetic (EM) pulse that is focused by an antenna, and then transmitted through the atmosphere (Figure A).
• Objects in the path of the transmitted EM pulse, called "targets" or "echoes," scatter most of the energy, but some will be reflected back toward the radar (Figure B).
• The receiving antenna (normally also the transmitting antenna) gathers back-scattered radiation and feeds it to a "receiver."
• An EM pulse encountering a target is scattered in all directions. The larger the target, the stronger the scattered signal (Figure C).
• Also, the more targets, the stronger the return signal, that is, the targets combines to produce a stronger signal (Figure D).
• The radar measures the returned signal, generally called the "reflectivity."
• Reflectivity magnitude is related to the number and size of the targets encountered.


• Doppler radars, like NEXRAD*(next radar generation), can also measure "radial.

• velocity," the component of target velocity moving toward or away from the radar.

• For example, at "time interval 1" (T1), an EM pulse transmitted by the radar is intercepted by a target at distance "D1".
• At "time interval 2" (T2), another pulse returns a target distance "D2." Doppler radars measure the change in "D" from T1 to T2. These changes, the radar's wavelength, and the time interval between T1 and T2, are used to compute target velocity.

seminar ideas
Super Moderator

Posts: 10,003
Joined: Apr 2012
29-05-2012, 10:36 AM

to get information about the topic "radar technology" full report ppt and related topic 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
Tagged Pages: seminar on noise on radar technology, new radar technology, project report and project on radar technology, project on radar technology, seminar topics based on radars, radar technologies seminar topics for free download, radar technology,
Popular Searches: a seminar about radar technology, noise radar, seminar about raadar technology, anticollision, anticollision divice, noise radar detector, radar technologies seminar topics for free download,

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
  Development of Smart Antenna Technology project uploader 1 697 07-04-2016, 11:24 AM
Last Post: mkaasees
Last Post: mkaasees
  IRIS Recognition Technology ppt seminar ideas 1 651 06-04-2016, 03:23 PM
Last Post: mkaasees
  flexible display technology ppt jaseelati 0 581 24-01-2015, 04:26 PM
Last Post: jaseelati
  iden technology ppt jaseelati 0 343 23-01-2015, 02:27 PM
Last Post: jaseelati
  6g mobile technology pdf jaseelati 0 330 22-01-2015, 02:00 PM
Last Post: jaseelati
  valvetronic engine technology powerpoint jaseelati 0 300 15-01-2015, 02:46 PM
Last Post: jaseelati
  optical technology in current measurement jaseelati 0 300 10-01-2015, 01:19 PM
Last Post: jaseelati
  seminar on wifi technology pdf jaseelati 0 326 07-01-2015, 01:45 PM
Last Post: jaseelati
  radar tracking system concept and application ppt jaseelati 0 236 01-01-2015, 02:50 PM
Last Post: jaseelati