• Like
  • Save
Radar
Upcoming SlideShare
Loading in...5
×

Radar

  • 661 views
Uploaded on

Rada System

Rada System

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
661
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
51
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. BITS Pilani Hyderabad Campus RADAR SYSTEM Mayank Garg 2013H140040H Embedded System BITS-Pilani, Hyderabad Campus
  • 2. BITS Pilani, Hyderabad Campus Introduction History of Radar Principle of Operation Characteristics of radar Radar measurement capabilities Radar Range Measurement Types of Radar Classification by Primary Radar Mission Radar Wave Modulation Antenna’s Application’s Conclusion Mayank Garg Slide 2 CONTENTS
  • 3. BITS Pilani, Hyderabad Campus  RADAR is an acronym for RAdio Detection And Ranging  RADAR is a method of using electromagnetic waves to remote-sense the position, velocity and identifying characteristics of targets. Introduction Mayank Garg Slide 3
  • 4. BITS Pilani, Hyderabad Campus Radar was developed for military purposes during W. W. II. The British and US Military used radar to locate ships and airplanes. Mayank Garg Slide 4 History of Radar
  • 5. BITS Pilani, Hyderabad CampusMayank Garg Slide 5
  • 6. BITS Pilani, Hyderabad CampusMayank Garg Slide 6 Principle of Operation
  • 7. BITS Pilani, Hyderabad CampusMayank Garg Slide 7 Characteristics of radar  Frequencies in the MHz, GHz, THz  Propagates at the speed of light  Antennas or optics used to launch/receive waves
  • 8. BITS Pilani, Hyderabad CampusMayank Garg Slide 8 Presence of target (detection ) Range (distance and direction) Received signal strength Radial velocity (Doppler frequency shift) Radar measurement capabilities
  • 9. BITS Pilani, Hyderabad CampusMayank Garg Slide 9
  • 10. BITS Pilani, Hyderabad Campus  Pulse Transmission  Continuous Wave Mayank Garg Slide 10 Two Basic Radar Types
  • 11. BITS Pilani, Hyderabad CampusMayank Garg Slide 11 Pulse Radar Components
  • 12. BITS Pilani, Hyderabad CampusMayank Garg Slide 12 Pulse Diagram PRT PW Resting Time PRT=1/PRF Carrier Freq.
  • 13. BITS Pilani, Hyderabad CampusMayank Garg Slide 13 Pulse Transmission Pulse Width (PW) – Length or duration of a given pulse Pulse Repetition Frequency (PRF) – Frequency at which consecutive pulse are transmitted Pulse Repetition Time (PRT=1/PRF) – Time from beginning of one pulse to the next – Inverse of PRF PW determines radar’s – Minimum detection range – Maximum detection range PRF determines radar’s – Maximum detection range
  • 14. BITS Pilani, Hyderabad CampusMayank Garg Slide 14 Continuous Wave Radar Continual energy transmission Separate transmit/receive antennas Relies on “DOPPLER SHIFT”
  • 15. BITS Pilani, Hyderabad Campus  Impedance Matching  Transmission Mayank Garg Slide 15 Continuous Wave Radar Components Discriminator AMP Mixer CW RF Oscillator Indicator OUT IN Transmitter Antenna Antenna
  • 16. BITS Pilani, Hyderabad CampusMayank Garg Slide 16 Doppler Frequency Shifts
  • 17. BITS Pilani, Hyderabad CampusMayank Garg Slide 17 Doppler Effect
  • 18. BITS Pilani, Hyderabad CampusMayank Garg Slide 18 Pulse Vs. Continuous Wave
  • 19. BITS Pilani, Hyderabad CampusMayank Garg Slide 19 Classification by Primary Radar Mission  Detection of Message Signal  Triggering The Rectenna  GSM Frequency In INDIA (900MHz Or 1800MHz) Search radars Weather Radar Tracking radars
  • 20. BITS Pilani, Hyderabad Campus Amplitude Modulation Frequency Modulation Pulse-Amplitude Modulation Pulse-Frequency Modulation Mayank Garg Slide 20 RADAR Wave Modulation
  • 21. BITS Pilani, Hyderabad Campus Introducing two types of antenna Parabolic Reflector Antenna Array antenna Mayank Garg Slide 21 Types of Antenna
  • 22. BITS Pilani, Hyderabad CampusMayank Garg Slide 22 Parabolic Reflector Antenna
  • 23. BITS Pilani, Hyderabad Campus An array antenna is composed of multiple element arrays for example, linear array, area array or nonformal array. The element antennas are half-wavelength dipoles, micro strip patches and wave guide slot. Mayank Garg Slide 23 Array Antenna
  • 24. BITS Pilani, Hyderabad Campus Search RADAR Targeting RADAR Navigational RADAR Mapping RADAR Weather RADAR RADAR is used for Air Traffic Control Mayank Garg Slide 24 Applications
  • 25. BITS Pilani, Hyderabad Campus Radar is a way to detect and study far off objects by transmitting a radio pulse in the direction of the target and observing the reflection of the wave. Its basically a radio echo. Mayank Garg Slide 25 Conclusion
  • 26. BITS Pilani, Hyderabad Campus Thanks Mayank Garg Slide 26 Link to connect with author: http://www.slideshare.net/MayankGarg25 https://www.linkedin.com/in/gargmayank http://www.researchgate.net/profile/Mayank_Garg6/ https://www.facebook.com/mayank17692?ref=hl