MILITARY RADAR SYSTEM-SHAILESH

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Military Radar System Detailed Presentation

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MILITARY RADAR SYSTEM:

MILITARY RADAR SYSTEM SUBMITTED BY:- SHAILESH KUMAR

CONTENTS:

CONTENTS MILITARY RADAR SYSTEM INTRODUCTION BASIC PRINCIPLE OF RADAR SYSTEM CONFIGURATION SET OF TERMINAL EQIPMENTS FUNCTIONAL DESCRIPTION OF RADAR SUBSYSTEM APPLICATIONS OF RADAR IN MILITARY CONCLUSION REFERENCES

A Radar is an EM device capable of transmitting an EM wave near 1-110 GHz and receives back a reflection from a target and based on the characteristics of returned signal determines the target.:

A Radar is an EM device capable of transmitting an EM wave near 1-110 GHz and receives back a reflection from a target and based on the characteristics of returned signal determines the target.

PRINCIPLE OF RADAR:

PRINCIPLE OF RADAR A transmitter generates an EM signal that is radiated in space by antenna. A portion of transmitted energy is intercepted by target and reradiated in many directions. Now reradiation is collected by radar antenna the received signal is processed to detect the presence of object.

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RANGE TO A TARGET Here, c = the velocity of light ( 3×10 8 m/s ) T R = the time taken by signal to reach the target and back to radar in μ sec. Continu ….....

RADAR EQUATION:

RADAR EQUATION Here, P t = transmitted power by antenna A e = area of receiving antenna 𝝀 = wavelength of transmitted signal S min = minimum power of signal detectable to antenna.

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RADAR FREQUENCIES Band designation Nominal frequency range L-band 1-2 GHz S-band 2-4 GHz C-band 4-8 GHz X-band 8-12 GHz Ku-band 12-18 GHz Ka-band 27-40 GHz

FIRST USE OF RADAR IN MILITARY:

FIRST USE OF RADAR IN MILITARY The first observation of the radar effect at the U.S., Naval Research Laboratory in 1992. The first radar developed by the U.S. army was the SCR-268 (at a frequency of 205 MHz) for controlling antiaircraft gunfire.

ADVANCED FEATURES OF RADAR :

ADVANCED FEATURES OF RADAR Multiple target handling capability. Short and fast reaction time between target detection and ready to fire moment. Highly accurate angle tracking of targets. Flexible weapon integration. High resolution.

SYSTEM CONFIGURATION:

SYSTEM CONFIGURATION Radar group It consist of antenna, radar transmitter, radar receiver, IFF interrogator. Shelter It contains display unit, TV monitor, colour PPI, radio set with antenna. Motor generator

TERMINAL EQUIPMENTS:

TERMINAL EQUIPMENTS TDR (Target Data Receiver) It performs parallax correction, threat evaluation and displays the result in a threat sequence, enabling the weapon commander to make the correct decision. LCA (Line Connection Adapter) A radio receiver or LCA (with standard 2 wire telephone line) is used to receive target data.

OPERATING THE RADAR:

OPERATING THE RADAR The operator’s main task is to watch the PPI display which only moving target in the normal mode. Target tracking is started and a track marker appears over the target echo. A level is displayed near the track maker. Processor unit process data on this tracked target.

SYSTEM FUNCTIONS :

SYSTEM FUNCTIONS Detection Using MTI processor and PPI Display Automatic Target Tracking Using joystick controlled marker Identification By using the IFF Interrogator Continu …..

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Reporting to External Terminal Equipment Target track data sent TDR of weapon system IFF Alarm It alerts to operator that IFF code has to be changed Example of a PPI Display

DATA FLOW IN A TYPICAL MILITARY RADAR SYSTEM:

DATA FLOW IN A TYPICAL MILITARY RADAR SYSTEM

TERMINAL EQUIPMENT FUNCTIONS:

TERMINAL EQUIPMENT FUNCTIONS Target Decoding Parallax Correction Using TDR Threat Evaluation Using threat evaluating program, built into the TDR

DATA FLOW AT WEAPON SYSTEM:

DATA FLOW AT WEAPON SYSTEM

FUNCTIONAL DESCRIPTION OF RADAR SYSTEM:

FUNCTIONAL DESCRIPTION OF RADAR SYSTEM

APPLICATION OF RADAR IN MILITARY:

APPLICATION OF RADAR IN MILITARY Radar is used for the multiple target detection. Radar is used to direct the weapon to an intercept. High-resolution imaging radars are used to detect fixed or moving targets in the battlefield. Radar is used for the guidance of the missile systems.

CONCLUSION:

CONCLUSION Military radars are one of the most important requirements during the wartime, which can be used for early detection of ballistic missile and also for accurate target detection and firing. A magnetron radar system is relatively simple and reliable. As a consequence, minimum maintenance is required and thus the system life cycle costs can be kept low.

REFERENCES :

REFERENCES www.google.co.in www.en.wikipedia.org Merril I. Skolnik ‘Introduction to Radar System’ Tata McGRAW -HILL www.bel-india.com

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