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search radar vs tracking radar-Difference between search radar and tracking radar


This page on search radar vs tracking radar describes difference between search radar and tracking radar. It also mentions following radar sub topics:
Main Radar Tutorial   Terminology   Measurements   Doppler Radar   FMCW RADAR   BANDs   RADAR SCOPE   Weather Radar   Ground radar   RANGE and RESOLUTION   Range calculator  


RADAR stands for RAdio Detecting And Ranging. Radar set composed of transmitter, receiver, duplexer and antenna. Radar transmits electromagnetic radio frequencies into the air. This EM waves are reflected back from the target object. This reflection of EM waves is known as echo. Radar compares transmitted signal and echo signal and determines the distance as well as direction of the moving object. The same have been depicted in the figure-1 below.

Search Radar

How Radar Works

Search radar is used to locate or discover existence of some targetted object in the air.

The Search radar is usually less precise and only distinguishes between targets that are hundreds of yards or even miles apart. Radar resolution is usually divided into two categories viz. range resolution and angular resolution (i.e. bearing resolution).

➨Distance coverage: Long, medium, short ranges (20 km to 2000 km)

➨High power density on the target: high peak power, long pulses, long pulse trains, high antenna gain

➨Low PRFs, large range bins

➨Search options: rapid search rate with narrow beams or slower search rate with wide beams

Tracking Radar

The Tracking radar continuously emits the EM waves in the air and detects the targetted object when it comes in the path of the waves.

➨Accurate angle and range measurement required

➨Minimize time on target for rapid processing

➨Special tracking techniques: monopulse, conical scan, beam switching

RADAR RELATED LINKS

RADAR tutorial
Doppler Radar
FMCW RADAR
RADAR BANDs
RADAR SCOPE
Weather Radar
Ground Penetrating Radar System
RADAR RANGE and RESOLUTION

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