Electrical Engineering Stack Exchange
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Questions tagged [radar]

Anything related to RADAR (RAdio Detection And Ranging) systems, their operations and circuits. RADAR systems are used to detect and locate a target by sweeping a beam of microwaves across a region of space and detecting echo signals reflected by the target.

Anything related to RADAR (RAdio Detection And Ranging) systems, their operations and circuits.

RADAR systems are used to discover and locate an object by sweeping a beam of microwaves across a region of space and detecting the echo signals reflected by the object itself.

See also Wikipedia on RADAR.

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How does LIDAR avoid getting confused in an environment being scanned by hundreds of other LIDAR?

(Meta: I do not know an appropriate place for this on Stack Exchange. There does not appear to be any groups related to autonomous driving technology and computer 3D vision / perception systems.) For self driving vehicles using 3D depth perception…
Dale Mahalko
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How to determine the Doppler radar frequency required to measure an object moving at a given speed

I'm trying to build a DIY tool to measure the speed of something moving very fast in a straight line, e.g. a bullet exiting the barrel of a rifle, based on the Doppler effect. I've looked for several Doppler radar modules online, but most of them…
GuiTeK
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Meaning of 'Scatterer' and 'point scatterer' as opposed to just using the word 'target'?

https://earth.esa.int/web/guest/missions/esa-operational-eo-missions/ers/instruments/sar/applications/radar-courses/content-3/-/asset_publisher/mQ9R7ZVkKg5P/content/radar-course-3-the-radar-equation "The geometry of scattering from an isolated radar…
NoTechBackground
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Can traffic counting be done with just doppler radar?

I'm planning on using radar to count car traffic on a slow speed road. What I'm wondering is if I should expect doppler radar to be good enough to get an accurate count? Alternatively I could also use FMCW radar in addition. Will adding FMCW give me…
user146255
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Radar correlators and matched filters

I'm trying to understand the real-world construction of 1950's radar correlators. The articles on the topic I have seen so far are jargon-filled explanations with no real-world examples. Does anyone know of a better introduction? Looking over the…
Maury Markowitz
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Phased array radar basics

So, I already understand that the maximum resolution of a radar system is λ R / L, where lambda is the wavelength, R is the range to the target, and L is the diameter of the antenna, and that for a phased array, L would be the maximum distance…
KarenRei
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Why CW radar I-Q signals do not contain Doppler frequency component?

I have a question about I/Q signals in Doppler radar, but I couldn't find a solution for this. As far as I understand, the received signal at receiver side will be down-converted by mixing it with the transmit signal (direct conversion). And in…
BL_
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What's the difference between a monostatic and a colocated radar?

I have heard the two terms thrown around in a somewhat interchangeable manner it seems. Are there any major differences? I haven't gathered that they have a different meaning, but I don't understand why there would be two different words if that…
Milliarde
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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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Radar Receiver How to detect 1 nsec pulse

I need to design a very short range pulsed radar for classroom/lab use. For this purpose the pulse width needs to be very short 1-5 ns to avoid the radar blind range. My preference is to digitize the received pulse and do all the processing inside a…
Faisal
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Why do automotive radar devices work only in 24 and 77-79 Ghz bands?

Commercial Automotive RADAR devices work on frequencies of 24 Ghz and 77 - 79 Ghz. My question is only these frequency bands ? Why not say 40 Ghz ? What's so special about 24 Ghz and 77-79 GHz that commercial RADAR based Collision devices are…
user974168
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Microstrip design tools

I recently came across a great project here to build a 4.3 GHz radar ground detection unit for an aircraft. Interestingly, it uses a very complex looking microstrip matching layout: What is a common software to use for the design and/or analysis…
Dewey
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Detecting static objects in view using RADAR

Why is it difficult to detect static objects using a 24 GHz RADAR system in cars particularly at high speeds ? static objects could be a stationary vehicle, a police barrier, a animal on the road or a dead end like a wall or tree etc... It is easier…
user974168
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What does "desying" mean in polarimetric radar studies?

Do you see these two papers? paper1and paper2 It seems that desying has a special professional meaning in polarimetric radar studies. I'm reading this paper and somewhere it says: We present in this paper an improvement to a decomposition scheme…
Sepideh Abadpour
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What does RADOM stand for in this datasheet?

I found the following sentence in the datasheet of a FMCW module: FMCW ramp is visible at the outputs caused by self-mixing effects, near objects and cover (RADOM). My search results are flooded with information about the city Radom and the…
Mast
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