Answer / vinoth

Radio Detection and Ranging... Radar is used for identify
the particular objects by radio waves.

Answer / roxy1001

Radio detection and ranging
It transmitts the radio waves in isotropic manner If any
solid object comes in the way of Radio waves it gets
reflected by the surface of the object and other receiver on
RADAR receives the reflected singal and hence it comes to
know there is an object on some distance.Size and distance
is detected by the Frequncy and Amplitude change in
reflected wave.

Answer / anil kumar

Radar is an object-detection system which uses radio waves
to determine the range, altitude, direction, or speed of
objects. It can be used to detect aircraft, ships,
spacecraft, guided missiles, motor vehicles, weather
formations, and terrain.

Answer / black_mamba_007

RADAR is radio angle detection and ranging

it detects the range, azimuth and elevation of the object from the plane of the radar.


for a CW it is also possible to find the speed of the object using doppler effect

for modulated CW all the four above parameters can be determined also it will be possible to detect more objects using digitally modulated Cw.

if simple pulsed radar is used it will give exact range, azimuth and elevation ..here we will be also using the prf for better detection and ranging.

Answer / shyam dubey

radar is a highly commuication system which identify radio ways

Answer / firoz rahman

radar is a communication equepment . it is a link
generate one end to other .he is generaly used in
telecommunication.it is alwayes use in satelight
connection.

Which type of devicesa used for detection of radio active field in side the reactor building?

0 Answers   BARC,

an oscillator is associated with an basic amplifier for producing oscillations,for production of oscillations the amplifier needs some input voltage but under the oscillation condition the input voltage is zero,why?

5 Answers  

Explain how to calculate knee point voltage? Describe its purpose for differential protection.

0 Answers  

what is the use of combiner in gsm phones

7 Answers   Ericsson,

In micro controller individual pin output current is 1.6ma .Normally to blink a led we need minium 10-12 ma. But if we connect led to the micro controller pins without additional device it blinks. How it is possible

0 Answers  

What does the voltmeter in ac mode show? Is it rms value or peak value?

0 Answers  

Iwant the old question paper for J.E(Tele.Signal).

0 Answers   RRB,

Define what happens to the conductivity of semiconductor with the rise in temperature? Compare with the conductivity of metals.

0 Answers  

negative feedback connections in flip flop

1 Answers  

Where are the successive approximation type adc’s used?

0 Answers  

What is the difference between plc and dcs control system?

0 Answers  

why micro processor can store maximum of eight bits for each memory location

1 Answers