Radar equations, how many are there?
Radar?equation relates transmit and received antenna gain, power, radar cross section, operating wavelength/frequency, range, and noise.? Consequently, radar signal to noise ratio can be computed.? There are 3 classes of radar; Search, Track, and Weather, each with its own radar equation which are used to relate physical design parameters to performance metric of a given radar.
Radar engineers use appropriate equation for designing and modeling given radar.? Search radar is utilized to scan given sky volume to find target, an obvious example is airport radar. Tracking radar is utilized to lock onto a target and track its movement.? Whereas, Weather radar is utilized to analyze precipitations and movement of rain, snow, and/or storm.
Some important observations regarding radar equations are that Track and Weather radar equations have squared wavelength dependency, whereas Search radar does not, directly.? On the other hand, Track and Search radar equations have inverse quartic range dependency, whereas Weather radar has only inverse squared range dependency.
It should be noted that there other differences between each radar equation.? Interested readers can contact ORTENGA for additional information.