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Advantages of Pulsed Radar | disadvantages of Pulsed Radar

This page covers advantages and disadvantages of Pulsed Radar. It mentions Pulsed Radar advantages or benefits and Pulsed Radar disadvantages or drawbacks. It also describes pulsed radar basics.

What is Pulsed Radar?

Introduction:
The pulsed radar uses train of pulses to determine target distance upto more than 200 nautical miles.

It uses transmitter and receiver parts with duplexer common to both. The pulsed radar uses pulse modulator in the transmitter part to turn ON/OFF desired waveform. Transmitter can be oscillator such as magnetron.

Pulsed Radar Block Diagram

The magnetron is used due to the fact that pulse width in several µs and PRF of several hundred pulses per second can be generated.

The transmitter transmits train of pulses using parabolic reflector antenna. The receiver converts received signal into lower IF frequency which is decoded and amplified before being provided to display unit. The detector is used to demodulate the received IF signal. Video amplifier amplifies the video signal and gives it to display unit to display range/bearing information. Refer Pulsed Radar basics >>.

Pulsed radar are available with different PRF values viz. High PRF, Medium PRF and Low PRF. Each of these pulsed radar types have unique advantages and disadvantages.

Benefits or advantages of Pulsed Radar

Following are the benefits or advantages of Pulsed Radar:
➨Pulse doppler radar is used to reject unwanted echoes using doppler filters.
➨It can measure range and velocity in the presence of multiple targets.
➨It offers higher S/N ratio.
➨Medium PRF pulsed radar offers better range accuracy and range resolution.
➨It offers better performance for airborne low speed targets.

Drawbacks or disadvantages of Pulsed Radar

Following are the disadvantages of Pulsed Radar:
➨High PRF pulsed radar has poor range accuracy and target resolution is also poor. Moreover it has range ambiguities.
➨Medium PRF pulsed radar does not have any clutter free region.



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