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Questions tagged [radar]

15 questions
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Radar/lidar for detection of humans in indoor rooom

I have a room (waiting room) about 10x10 meters and I would like to locate people in there. Celling in the room is really high, so I can place the radar above in any height I want. My questions: Is it possible to use some ready/made radar/lidar…
matousc
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Where can I find an Electrical Engineering master or phd student for my GPR radar project

I want to make this project but lacking manpower and knowledge. I want to include one having knowledge and excitement. Where should I find one? I am just graduated. So no money I can offer. I can share the gains and knowledge in all means. I have…
freezer
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How to determine data size created by sensor for calculation of signal processing and transmitting over wireless communication?

I want to build some sort of SAR sensor. Since radar works high speeds and creates loads of data this should be processed faster. I am trying to find algorithms to be used for this purpose. I am at the beginning of the project so just looking around…
freezer
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A radar that is not an OTH detection distance

Let's say that we have a radar that is not an OTH on a boat, and it is placed 30 meters above the ground. Is there a way for it to detect an offshore platform 152 kilometers away from it, since the Earths curvature should prevent it from doing…
Ayy Lmao
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Rotation of Radar Axis in 3D plane

I'm working on a sensor fusion application. In our vehicle, 4 radars (fixed, non-rotating radars) are placed at 4 corners of the vehicles at 45 degrees with respect to x, y and z-axes of the vehicle. For proper working of the sensor-fusion algorithm…
Akash Sagar
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What kind of low-cost equipment do I need to learn and experiment with RADAR at home?

I am interested in RADARs. However, I don't have enough time to go to school for studying RADARs. Therefore, I am thinking about self-study. What kind of low-cost equipment do I need to learn and experiment with RADAR technology at my home?
user366312
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How to design the range and precision of a radar?

I would like to design the wave characteristics and size of antenna for a radar, but I am quite confused about how to find this information. The radar should have roughly following capabilities: Range: up to 5 miles Precision: objects of 0.5m to 5…
totalMongot
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What are design considerations for an RCS test range be relocated fully underground?

Sites like the Lockheed Helendale RCS or the Tonopah test range are only known to have an underground pit to support raising or lowering of test articles. But is it technically possible to have a fully underground test range? For example the…
Nederealm
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How to get correct yaw and pitch after rotation

I am trying to come up with a "stabilization" algorithm for an antenna dish. The dish can move in the azimuth (yaw) and elevation (pitch) directions. But the boat it is mounted to, moves in all three degrees (yaw pitch and roll). To start with, I am…
rperez62
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How do "Your Speed" Signs work, and how do vehicles know when it's the sign's turn to display their speed?

I see these LED speed signs on the side of the road, which display the approaching vehicle's speed. What I have gathered is that they measure the time between the sending and receiving of the signals and then convert it into distance. My questions…
Ritika Das
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can I extend the the antenna of a magnetron with a cable?

If I connect a piece of heavy copper wire or copper rod to the antenna cap of a magnetron can I guide the current so that microwaves would be emitted further away ?
Manu de Hanoi
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Aspect Angles in 3D (Radar Cross Sectional Area)

a bit confused with regards to the whole term aspect angle in a 3D planar case. Most examples that I searched online involved either a 2D plane or a stationary object. Let say the black circle denotes a ball that flies in a projectile motion as…
THW
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Can a piece of conductor be made invisible to radar by overdamping?

To my understanding every conductor reemits a bit of electromagnetic waves induced in it by radiation. If theres a way in an antenna one could create a wave of opposite phase to the incident one so that there's no net oscillating field, could it…
Francis L.
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Find electronics in wilderness; or, "I dropped my cell phone in the woods!"

Imagine I was working in the woods and dropped my cell phone somewhere in a large area where it is now hidden beneath dense vegetation. By calling it I confirm that either it has powered off or its battery is dead. How can I find it? A consumer…
feetwet
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How do brass models work (radar)?

A common practice in naval research is to construct brass models of ships to study the reflectivity of a vessel. This can (supposedly) be used to understand the way it reacts to radar and the way antennas on the ship might be affected by the…
Wallace Park
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