WHAT IS RADAR?

By -

RADAR

WHAT IS RADAR  TECHNOLOGY / HOW THE RADAR TECHNOLOGY WORKS

RADAR- RAdio Detection And Ranging 

we heard about the RADAR at many places or from many people, mostly IN MOVIES WE SEE THE RADAR SYSTEM in fighter jets mostly.
NOW THE IMPORTANT PART IS  
  • HOW THIS RADAR WORKS?  
  • WHAT IS RADAR TECHNOLOGY?
  • HOW RADAR TECHNOLOGY WORKS?  
All of the questions are answered just by explaining about RADAR.
   
RADAR is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. 

WORKING :- MICROWAVE ENERGY PULSES are EMITTED AT REGULAR INTERVALS AND FOCUSED by the antenna into a RADAR BEAM directed downwards and to the SITE. The radar beam ILLUMINATES the surface AT ONE SIDE at a right angle to the motion of the platform. Objects on the ground REFLECTS the microwave energy depending on factors such as roughness and altitude. The antenna receives this reflected (or back-scattered) energy and DEVELOP THE IMAGE.


 

IT GIVES THE DETAIL ABOUT THE OBJECTS NEAR BY AND ITS VERY RELIABLE THESE DAYS.

Advantages of RADAR Imaging
All-weather Operation: the transmitted and reflected microwave energy penetrates through cloud cover, dust, haze, and rain.
mwradar.gif (5256 bytes)


Day or Night Operation: Radar sensors can operate both day or night since they do not require an external energy source.
radardaynite.gif (5629 bytes)
 



RADAR WORKS IN MICROWAVE BAND (SHOWN SUBDIVIDED PARTS)


Radar Applications
Stereo Radar: In the same way as air-photos are taken of the ground with forward overlap and side lap in order to view stereo images, a similar application is possible in radar imaging by using different look/incidence angles or opposite look directions.
radarstereo.jpg (11603 bytes)

Comments

Post a Comment

Popular posts from this blog

WHAT IS GSM TECHNOLOGY

By -
Image
HOW THE GSM TECHNOLOGY / GSM WORKS   The basic GSM architecture is divided into different subsystem, It defines the different elements and it run the overall GSM ARCHITECTURE system perfectly. The GSM network architecture well settled now but with the old system of this technology is backbone now so it used as the old ways. on the other hand new system is developed but, the basic GSM system architecture has been maintained, and the GSM network architecture elements perform the operation as the original one  -> The original GSM system was launched in the early 1990s The GSM network architecture is divided into these subsystem , Mobile station (MS) Base-Station Subsystem (BSS) Network and Switching Subsystem (NSS) The main point is that the User is not aware about the background process and it doesn't matter because its a fast process A block diagram of the overall GSM system architecture Simplified GSM Network Architecture Diagram Mobil...
Read more

INFRARED SENSOR

By -
Image
INFRARED ( IR ) SENSOR Infrared Light that is invisible to the human eye, INFRARED SENSOR detect the infrared frequency(Light) , and make the work done. In daily life we use many IR INSTRUMENTS  ALARM SYSTEM CAMERA WITH IR SENSOR DAFINATION :- 1. An infrared sensor is an electronic instrument which is used to sense certain characteristics of its surroundings by either emitting and/or detecting infrared radiation. Infrared sensors are also capable of measuring the heat being emitted by an object and detecting motion. Infrared Radiation. 2. An infrared sensor is a device that emits and/or receives infrared waves in the form of heat. While most infrared sensors transmit and receive infrared waves, some can only receive them. These types of infrared sensors are known as Passive Infrared Sensors (PIR sensors) or motion detectors.   HOW IS WORKS : - Sensors are used to measure physical quantities such as temperature, light, pres...
Read more