Radar basic
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The document provides an overview of radar basics, including a brief history of radar development, an introduction to radar functions and principles, classifications of different radar types such as primary radar, secondary radar, and search radars used for surface, air and missile guidance, as well as advantages and disadvantages of radar systems. It also outlines a scheme of presentation for topics on radar functions, groups, and advantages and disadvantages.
Radar basic
- 2. RADAR BASIC Prepared by: Shahid Ali
- 3. SCHEME OF PRESENTATION HISTORY OF RADAR INTRODUCTION FUNCTIONS BASIC GROUPS CLASSIFICATION 3
- 4. SCHEME OF PRESENTATION ADVANTAGES DISADVANTAGES SUMMARY 4
- 5. 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
- 6. INTRODUCION Radar is an electronic system that uses reflected electro magnetic energy to detect the presence and position of objects invisible to the eye It stands for: RAdio Direction And Ranging 6
- 7. FUNCTIONS Search Height finding Missile Guidance Navigation Mapping Traffic control 7
- 8. BASIC GROUPS Primary Secondary Continues wave TX RX 8
- 9. 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
- 10. 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
- 11. CLASSIFICATION Radar system are divided into types, based on the designed use Search radar Specific characteristics IFF 11
- 12. 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
- 13. SURFACE SEARCH RADAR Surface search radar has two primary function Detection and determination of accurate ranges and bearing Maintain of a 360 degree search pattern 13
- 14. AIR SEARCH RADAR Air search radar systems initially detect and determine the Position Course Speed of air target Used as early warning 14
- 15. HEIGHT FINDING RADAR Obtaining range, bearing and altitude data Detecting low flying aircraft Tracking aircraft over land 15
- 16. 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
- 17. 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
- 18. 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
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- 20. ANY QUERY ??? PLEASE !!!
- 21. RE N CA T IO PI A TU L UL P IT AT C A IO R E N
- 22. ASSIGNMENT Visit the Quid-e-Azam Air port & observe the Radar physically?