Questions tagged [radar]

Radar is a surveillance technology that uses radio waves to determine the range (and azimuth) of an aircraft. It works by measuring the time difference between a radio transmission and the echo or reply to that transmission. Radars are the most common surveillance equipment used by ATC.

Filter by
Sorted by
Tagged with
2
votes
1answer
338 views

Can the new multi scan weather radar on the A320 see low level cumulus?

Is it true that in the new multi scan weather radars fitted in the A320, low level cumulus clouds are not picked up?
2
votes
1answer
126 views

Is there any current and/or upcoming technology that alerts Air Traffic Controllers in case of loss of aircraft separation?

Currently doing an assignment and it to analyse an accident where older atc systems could have been at fault. In 1995 there was an incident where two aircraft came closer than the then current ...
2
votes
1answer
302 views

Do special procedures exist for commercial pilots flying over Russia?

Since Russia, and in particular the Asian part of it, is huge, I was wondering if there are special procedures for commercial pilots to follow over Russia (in particular and specifically Siberia and ...
2
votes
1answer
382 views

What does the ASDE-X ground radar unit look like?

Above is a picture of a primary / secondary surveillance radar combo (top is secondary, bottom is primary). What does the ASDE-X radar unit look like in real life?
2
votes
1answer
299 views

Is there a database of European surveillance radar installations?

Does anybody know a link to a database or appropriate webpage where I can find the locations of surveillance radar installations in Europe?
2
votes
1answer
151 views

Does ICAO require (or suggest) set of technical statuses of radar and its subsystems?

Does ICAO require (or suggest) set of technical statuses of radar and its subsystems? In other words is it required that radar status can be set to Normal, ...
2
votes
1answer
58 views

Converting lat long & altitude into a line of sight target? [closed]

I want to design a long-range ADS-B receiver with a directional antenna (like a Yagi), but in order to maximize its range, I'll need to orient the antenna towards a target (plane) based on existing ...
2
votes
0answers
395 views

Why does AH-64 Apache have its radar over its rotors? [duplicate]

The targeting radar is above the rotor assembly ! But why ?
2
votes
0answers
777 views

Enemy plane detection [closed]

Suppose that an enemy plane comes into our radar surveilled airspace, and that this plane is mimicking the signature of a friendly aircraft. Can this tactic be recognized? Is there a way of ...
1
vote
3answers
1k views

Can radar detect a small flying device with MEMS microengines?

I have seen some MEMS micro engines and some micro turbines and I would guess they can be attached to some payload to fly. Is it possible for commercial/military radars to detect those micro flying ...
1
vote
3answers
549 views

What is the effect of opening airplane bay doors on the radar cross section of the airplane?

How does opening airplane bay doors (especially in the case of bombers), increase the radar cross section of the airplane and make it more visible to the radar? These are usually combined with ...
1
vote
1answer
275 views

In Antonov An-225, why there are radioactive / nuclear signs?

Looking at some An-225 images, i see some radioactive signs near the nose radome. Why they are there? I'm sure it doesn't have a nuclear reactor on board or any nuclear medical equipment. The only ...
1
vote
2answers
204 views

Can a CIWS engage aerial targets?

Can a Phalanx-type Close-In Weapons System (CIWS) engage small aerial targets like drones, UAVs, rotorcraft? Is there any case that Phalanx was used against aerial targets?
1
vote
2answers
147 views

What can cause a watchdog failure in an INDRA MSSR?

I am responsible for Mono-pulse Secondary Surveillance Radar (MSSR) system that resets itself after a watchdog failure. So far I have found the following: An unwanted number of replies are received ...
1
vote
1answer
172 views

How does maneuvering affect radar detection of stealth aircraft?

Stealth aircraft like the F-22 and F-35 have very low radar cross sections. These planes have angles of their fuselage set-up in a way to deflect radar signals. As far as I understand another stealth ...
1
vote
1answer
337 views

Do any civilian aircraft use AESA or PESA for weather radar?

Are there any weather radars in civilian aircraft that uses active or passive array techniques? I know that the most of the radar used in the civilian aircraft use doppler effect and latest military ...
1
vote
1answer
160 views

Does the FAA prescribe radar cross-section requirements for civilian aircraft?

Are there any FAA regulations stipulating the minimum permissible radar cross section for civilian aircraft (i.e., making sure that civilian aircraft are at least such-and-such cross-section visible ...
1
vote
1answer
2k views

Which one has a higher success rate between Infrared homing and Radar homing missiles, for air to air combat?

I know Infrared missiles don't work on long ranges, so I will keep my question limited to short ranges only, in which both missiles can work. In such short ranges, which guidance system has more ...
1
vote
2answers
270 views

How do people smuggle stuff with private airplanes? [closed]

I get it, the question seems as if I'm reaching out for answers from experienced smugglers! But no. As a matter of fact, I'm trying to get answers on air surveillance & security. Love it or hate ...
1
vote
1answer
368 views

ASTERIX category 240 fields placement in a UDP packet

I searched the placement of ASTERIX Category 240 radar video data fields in a UDP packet. But I cannot find any useful info. Is there a standard for this work?
1
vote
1answer
639 views

How does ATC radar display differ from military radar?

Could you summarize what sort of data/objects are present in one type of display but not another? (not asking about construction differences, just the user-facing end, the display/interface.) A ...
1
vote
1answer
914 views

What is the response time of Pulse Doppler Radar?

We have the Airborne Pulse Doppler radar for weather predictions which are I think same as in the A350s and also in fighter jets so, what is the response time of these radars? For example, if a ...
1
vote
1answer
247 views

Are old illegal air transfer methods still feasible today? [closed]

A retired soldier told me he used to know people who smuggled jewelries, hard drugs, guns and even people from middle eastern countries to Europe, specifically, Germany! Via planes! In fact, he said ...
1
vote
1answer
537 views

How does radar receive Mode C information?

I know primary radar of ASR can determine only slant range, so by using Mode C transponder, ATC can know the altitude of aircraft. And I found that if altimeter setting of radar is changed, displayed ...
1
vote
1answer
213 views

How can the radar range for ATC be estimated based on stated maximum radar range?

Is there a way to estimate the maximum effective range of a naval radar for air traffic control functionality, based on the radar's stated overall max range? For instance, if a naval radar that has ...
1
vote
1answer
72 views

Where is flight following available?

What local facilities are required for me to get flight following services? It seems that if I'm 100 miles from any control tower then I won't be able to get flight following. How close does a ...
1
vote
1answer
192 views

How are military aircraft directed to targets?

How would a controller, say, AWACS or ground radar, direct via voice an aircraft to the location of an airborne target? I've seen it in movies, but don't know if they where right, nor did I ...
1
vote
1answer
792 views

What is the main difference between Class C and B Radar Service?

What is the main difference between Class C and B Radar Service? Class C service provides approved separation between IFR and VFR aircraft, and sequencing of VFR aircraft to the primary airport. ...
1
vote
0answers
47 views

How will the update from DO-260A to DO-260B improve safety and efficiency in air traffic management significantly?

From what I know, the version update from DO-260A and DO-260B offers new features such as on-ground vs airborne source selection logic, ADS-B failure annunciation, the split of the quality indicators ...
1
vote
0answers
44 views

What prevents the use of auxiliary radar installations to allow radar control and MSAW protection in areas that would otherwise be masked by terrain?

Both primary1 and secondary2 radar, while extremely useful (nay, indispensable) for modern aviation and air traffic control, are limited to seeing only aircraft in their direct line of sight; if there ...
1
vote
0answers
187 views

What is the equivalence of Meteksan MILDAR in US inventory?

This is called MILDAR radar. This is manufactured by a Turkish company named Meteksan. Is this Turkish equivalent of Longbow radar? If yes, why is that radar pylon-mounted rather than mast-mounted?...
1
vote
0answers
119 views

Can lasers be used for weather detection along an aircraft's flight path?

Aircraft use RADAR for weather detection such as storm clouds, rain, etc. Why don't they use LASER instead to measure the density of the weather ahead? RADAR has been known to return false signals of ...
0
votes
1answer
158 views

Why can’t a single-fan-beam radar determine the elevation angles of its primary targets?

A while back, I asked about the reason for one of the well-known limitations of most ATC primary radars (their inability to determine target altitudes).1 The answers boiled down to “single-beam fan-...
0
votes
2answers
518 views

What is the relation between clouds and radar effectiveness?

Recently, India's prime minister Narendra Modi commented on how cloudy weather can help a fighter jet escape from radar. Is there any technical reasoning to back these comments? Here is the quote ...
0
votes
1answer
112 views

Maximum Altitude/Minimum Range limits of ATC PSR

I am trying to get an understanding of the ability of an air traffic control primary radar such as an ATCR-33 to track high flying targets (above 40,000 feet) at relatively close ranges (less than 15 ...
-5
votes
1answer
579 views

Do any ATC displays use colours to indicate altitude?

I've been thinking about how ATC displays present information to operators and it seems that colour isn't used, at least for critical information like altitude. Since our eyes can recognize colour ...

1 2
3