Study of Radar System PPT
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This document summarizes Atul Sharma's training report on studying radar systems during an internship from June 16th to July 26th 2014. It introduces radar technology, explaining that radar uses radio waves to detect objects and determine their location, distance and direction. It then describes the basic principles of how radar works, including the radar range equation. It also outlines the main components of a radar system, such as the antenna, transmitter, receiver and display, and different types of radars like primary and secondary radar. Finally, it provides examples of specific radar sets used in India.
![Radar Range Equation
Rmax = [Pt .G.б.Ae / (4П)2Smin]1/4
G = 4ПAe / λ2
Ae = G.λ2 / 4П
Where Smin = Minimum power received
Pt = Power transmitted
G = antenna gain
б = radar cross section of target
Ae= effective area
Rmax = Maximum Radar Range](https://image.slidesharecdn.com/introduction-140926041430-phpapp01/85/Study-of-Radar-System-PPT-4-320.jpg)
Study of Radar System PPT
- 1. Training report on Industrial training at On the topic:- STUDY OF RADAR SYSTEM Submitted to:- Under:- Mr. Aman Vohra Start Date for Internship:-June 16th 2014 End Date for Internship:-July 26th 2014 Submitted by:- Atul Sharma, B.Tech IV year, ECE Maharaja Agrasen Institute Of Technology, GGSIPU
- 2. INTRODUCTION RADAR is an acronym for RAdio Detecting And Ranging. First successfully demonstrated in 1936. It uses electromagnetic waves. It enjoys wide range of application. The World War II RADAR ‘Wurzberg Rise’
- 3. Principle Of Working Radar is used to find the • Location, • Distance, • Direction of the target.
- 4. Radar Range Equation Rmax = [Pt .G.б.Ae / (4П)2Smin]1/4 G = 4ПAe / λ2 Ae = G.λ2 / 4П Where Smin = Minimum power received Pt = Power transmitted G = antenna gain б = radar cross section of target Ae= effective area Rmax = Maximum Radar Range
- 6. Primary Radar A Primary Radar transmits high-frequency signals which are reflected at targets. The arisen echoes are received and evaluated. Secondary Radar At these radar sets the target must have a transponder (transmitting responder) on board and this transponder responds to interrogation by transmitting a coded reply signal.
- 8. Pulse Radar
- 9. Classification on the basis of use:
- 10. SOME RADAR SETS 3-D surveillance Radar (ROHINI) Low Level Light Weight Radar (ASHLESHA) Low level Light weight Radar(BHARANI) INDRA II
- 11. RADAR DEVICES ANTENNA TRANSMITTER RECEIVER RADAR DISPLAY
- 12. RADAR ANTENNA An antenna either receives energy from an electromagnetic field or radiates electromagnetic waves produced by a high frequency generator. Parabolic antenna Cassegrain antenna Slot antenna
- 13. TRANSMITTER A radar transmitter generates RF- energy Necessary for scanning the free space. RECEIVER The function of the receiver is to take the weak echoes from the antenna system, amplify them sufficiently, detect the pulse envelope, amplify the pulses, and feed them to the indicator.
- 14. RADAR DISPLAY A-SCOPE B-SCOPE PLAN-POSITION INDICATOR(PPI)
- 15. A-SCOPE Presents only the range to the target and the relative strength of the echo. B-SCOPE It provides a 2-D representation in which horizontal axis represents measurement of azimuth (bearing) and vertical axis represents the measurement of the range.
- 16. PLAN-POSTION INDICATOR(PPI) It is an intensity-modulation type display system which indicates both range and azimuthal angle of the target simultaneously in polar coordinate. The distance of the bright spot radiating outward from the centre gives the range or the distance of the target from the radar transmitter while the direction in which the spot deflects at certain instant corresponds to the direction of radar antenna (i.e. target direction) at that instant.
- 17. Thank You