Antenna Aperture (A e) This is a required field.
Trimming down some variables and Provide pre-calculated one. In conventional mechanically scanned radar, this determined by the mechanical ability of the radar (actuator, hydraulics etc), which not much can be done with it. If you have noticed an error in the text or calculations, or you need another converter, which you did not find here, please Share a link to the calculator, including the input valuesBoeing 747 weather radar antenna and its display in the cockpit. Radar Max Range is determined, ideally speaking, on the properties of the antenna only. First is line of sight which depends on the radar antenna's height above ground. If anyone asks why Taylor is the default it's because Taylor weighting is the easiest to implement and quite robust.
Second is a parameter called "maximum non-ambiguous range".
There are three known factors that can limit the maximum range of a radar system. Whle accepting electronic steering angle of only 7 degrees. Below the weightings there are new tables detailing antenna parameters for Linear and planar array.
As you see typical scan for fighter aircraft radar is about 1-5 seconds. But well here i come.So what i shared is, kinda small project of mine based on my interest toward radar.The AESA Radar range calculator here is an excel spreadsheet, made based on several books like SKolnik's 3rd Introduction to Radar system, Stimson's 2nd Edition of Introduction Airborne Radar and others.The calculator will attempt to predict radar ranges based on inputted variables and taking account of some important things that for some reason not considered by other calculators like pulse integration, scan sectors and most importantly the antenna weighting scheme.As we know AESA Radar or perhaps even its Hybrid Array sibling like N011M Bars is capable of actually altering its radiation pattern, based on algorithms like Taylor, Cos, Hamming.
Radar and its target. A signal at a certain frequency is transmitted, reflected, then hopefully, detected.
In previous version user can input their scan time, which later the sheet will "allocate" it according to the scan area inputted by user.
So radar gets more powerful return signals when pulse width is longer. Bragg lobesWhen I reduce the radar scan sector angles I would expect a rather proportional increase of detection range, but sometimes there is even an decrease. To make our calculations easier, we will assume that the Earth is a perfect sphere with the radius of This formula is used in our calculator to calculate the geometric horizon distance. Pasternack's Radar Maximum Range Calculator produces an ideal maximum range of a radar antenna using the properties of the antenna.
[ATTACH=JSON]{"alt":"Click image for larger version Name:\tesa_feature_by_stealthflanker-db04d9s.png Views:\t1 Size:\t116.2 KB ID:\t3731792","data-align":"none","data-attachmentid":"3731792","data-size":"custom"}[/ATTACH]Great work.. congrats.. far more advanced and detailed that I could ever have gathered together..one thing if I might ask.. is it possible to upgrade a radar with an antenna of a certain aperture and certain amount of elements by replacing the antenna with a different one with larger TRM count?
adding new algorithms which you can try and have fun with. Radar is a system that uses electromagnetic waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, ships, motor vehicles, weather formations, and terrain.
It is associated with the low elevation region of performance, and its geometry depends on terrain, radar height, and signal processing.
This tool helps you determine the maximum range of a radar system given the required parameters. However feedback and input are appreciated.If you tried to space the modules closer than lambda/2, you'd end up with multiple beams going in different directions. As a result, the refractive index of the atmosphere falls with height. Not very useful for a radar.VERY complicated, but certainly not impossible AFAIK, changing time shifts no?Anyway Lambda/2 spacing from image above give scanning without grating lobes. Say your APG-77 has 2,000 TRMs, today, could it get a 2,700-TRM array one day?
Other possible consideration is cost as we know TR module is still an expensive item.
Even special algorithm has been developed for AESA. Any other spacings be it less or more should have other consideration on choosing like say economy.