Radar basic

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By Shahid Ali Bangash

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  • how to determine the radar ranging??
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  • agreed with neginipun
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  • good
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  • correction required its not radio direction and ranging.instead radio detection and ranging.
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  • good job done ! keep it up
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Radar basic

  1. 1. RADAR BASIC Prepared by: Shahid Ali
  2. 2. SCHEME OF PRESENTATION HISTORY OF RADAR INTRODUCTION FUNCTIONS BASIC GROUPS CLASSIFICATION 3
  3. 3. SCHEME OF PRESENTATION ADVANTAGES DISADVANTAGES SUMMARY 4
  4. 4. HISTORY Reflection of radio waves were made in the 1920s by MAXVEL and other scientists He forecast that reflections could be obtained from targets First radar named R.D.F (radio direction finding) First radar installed on HMS RODENY and HMS SHEFIELD in 1939 5
  5. 5. INTRODUCION Radar is an electronic system that uses reflected electro magnetic energy to detect the presence and position of objects invisible to the eyeIt stands for: RAdio Direction And Ranging 6
  6. 6. FUNCTIONS Search Height finding Missile Guidance Navigation Mapping Traffic control 7
  7. 7. BASIC GROUPS Primary Secondary Continues wave TX RX 8
  8. 8. PRIMARY RADAR Primary Radars are those Radars which have different Transmitter and Receiver unit Requirement of Primary radar is to measure the range/ bearing of contact Measuring the time taken of radio wave Use single antenna 9
  9. 9. SECONDARY RADAR Radar in which the Transmitting and Receiving station is same Interrogator transmits an encoded signal to a target Aircraft transmissions can trigger responses from fixed transmitters Aircraft’s position may be accurately established 10
  10. 10. CLASSIFICATIONRadar system are divided into types, based on thedesigned use Search radar Specific characteristics IFF 11
  11. 11. SEARCH RADAR Search radar continuously scans a volume of space and provides initial detection of all targets within that space Search radar further divided into specific types:  Surface search  Air search  Height finding  Tracking  Missile guidance 12
  12. 12. SURFACE SEARCH RADARSurface search radar has two primary function Detection and determination of accurate ranges and bearing Maintain of a 360 degree search pattern 13
  13. 13. AIR SEARCH RADAR Air search radar systems initially detect and determine the  Position  Course  Speed of air target Used as early warning 14
  14. 14. HEIGHT FINDING RADAR Obtaining range, bearing and altitude data Detecting low flying aircraft Tracking aircraft over land 15
  15. 15. MISSILE GUIDANCE RADAR Radar system that provides information used to guide a missile to a hostile target Beam rider missiles follow a beam of radar energy Homing missiles detect and home in on radar energy reflected from the target 16
  16. 16. ADVANTAGES Detects objects beyond the sighting range, in dark and in bad weather Provide accurate Range, Bearing, Course, Speed and Altitude information Effective use for Navigation purpose Can identify between friend and foe Control the traffic in harbour, on the road and in the Airport 17
  17. 17. DISADVANTAGES Disclose own position Jamming/ interference is possible EM waves is danger for human body Very sensitive and costly equipments May confuse friendly EW sensors with enemy Not easily avaliable in international market 18
  18. 18. 19
  19. 19. ANY QUERY ??? PLEASE !!!
  20. 20. RE N CA T IO PI A TU L UL P IT AT C A IOR E N
  21. 21. ASSIGNMENTVisit the Quid-e-Azam Air port &observe the Radar physically?

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