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IWR6843ISK: What lab is best for my use case and potential issues?

Part Number: IWR6843ISK

So I have a use case that I will try to explore with IWR6843ISK.   I would like to see if it's possible to detect an object passing infront of the radar, similar to the Area Scanner Lab or the Traffic Monitor.   There are some differences as the object will be pointed more upwards towards the sky, the antenna/device positioned so that 120 fov is oriented more vertically and the 30 degrees of elevation is oriented horizontally.    In this position the radar will monitor a swath of the sky vertically so that any object in the air flying through the air horizontally will be briefly tracked through the narrow 30 degrees  of elevation oriented horizontally.   Conceptually you would have a left/right side and be interested in primarily in when the object crosses exactly in the middle, kind of like a finish line but oriented up (like 0 degree line in area scanner.)

Usually there will only be one object tracked, but in some instances this object will move rather fast, say upwards of 160 kph.   The range of such object is less than 20 meters.   

I have read a lot of the documentation, including the Traffic monitor case study and the Project/Lab user guides.

Here are my questions:

1.  Which Lab would more appropriately approximate my use case, the area scanner or the Traffic Monitor?

2. Can the IWR6843ISK with antennas oriented vertically track a fast moving object over the narrow 30 degree fov?

3.How quickly and accurately can I detect the crossing? For example if it were a normal camera  that worked at 60 frames per second, additional processing time of 100ms  and the object's  velocity was 100 mph, would be about 17 feet passed the crossing before the crossing was detected.  What would it be to total latency for the IWR6843ISK?  

My idea was just to start with the labs and then do my own parsing and processing with python.  Is this a good start?  Will either lab suffice as means to parse the data or is this use case different enough that it will benefit from very different radar parameters and programming.

Thank you.

  • 1.  Which Lab would more appropriately approximate my use case, the area scanner or the Traffic Monitor?

    I think either would be fine, but I would recommend Area Scanner.

    2. Can the IWR6843ISK with antennas oriented vertically track a fast moving object over the narrow 30 degree fov?

    Conceptually yes.

    3.How quickly and accurately can I detect the crossing? For example if it were a normal camera  that worked at 60 frames per second, additional processing time of 100ms  and the object's  velocity was 100 mph, would be about 17 feet passed the crossing before the crossing was detected.  What would it be to total latency for the IWR6843ISK?  

    This will depend on the frame rate of the radar. Generally speaking, I have seen frame rates that are as fast as 20-30 frames per second. You will have to set the frame rate to a value the allows you to complete post-processing between each frame, but this is something you'll configure with the CLI. 

    Best,

    Nate

  • Do the automotive radars have higher frame rates?  

  • They are the same. You may be able to achieve a higher frame rate based off your configuration and the amount of data processing. The 20-30 frames/second includes a tracking layer step too that takes time. Eliminating this or simplifying it greatly could reduce processing time greatly.

    Best,

    Nate