IWR1642: Is BPM a solution for multiple radars nearby?

HI, 

Can you give me more details on how you plan to use BPM?  What are you trying to achieve?

It is not clear to me.

Best,

Zigang

HI, Joong:

In terms of interference mitigation in FMCW radar, we have a training videos and an application note.  

https://training.ti.com/managing-interference-fmcw-radar-systems

https://www.ti.com/lit/pdf/swra662

TI mmwave radar device support BPM, but you will need to figure out how to use it to achieve your goal.   Based on my understanding, I do no think BPM will make different radar eliminate interference for FMCW radar.

Best,

Zigang

Hi, Joong:

It is very hard to avoid interference completely with other radars that you do not have control.   

One way to avoid the interference is to scan the spectrum, and found the empty the time slot and spectrum, and then configure the radar to use that time slot and spectrum.   

Best,

Zigang

HI, Joong:

Different antenna pattern will result in different angle resolution.   But here is the angle resolution in azimuth and elevation for different EVM at:

http://dev.ti.com/tirex/explore/node?node=AKu-aTm5FIcxlwZJU1pLBw__VLyFKFf__LATEST

In general, if the antenna space is lambda/2, and there are total N antennas in the row, then the angle resolution is 2/N in radius.  For example, for N =4, the angle resolution is 2/N = 0.5 radius =  28.64 degree; for N = 8, the angle resolution will be 2/8 = 0.25 radius = 14.32degree.  This rule applies to both azimuth and elevation directions.  You can find the detailed information in the following training video:  https://training.ti.com/intro-mmwave-sensing-fmcw-radars-module-5-angle-estimation?context=1128486-1139153-1128546

Best,

Zigang

HI, Joong:

We provide training videos, raw data collection (through DCA1000 board),  software release package (SDK release) and all the source code of the demo examples (through TiREX), also a lot of information about EVM board.   But it is very hard for me to predict the man hour.  Please contact the field engineer for this kind of discussion.   If you start with our EVM and antenna module, you probably do not need a hardware and RF engineer.  A software/signal processing engineer can prove the concept.  

I am not familiar with relative permittivity, but blind spot detection should not be a very hard problem for mmwave radar in general.   Please send a separate E2E thread regarding your new questions?

Best,

Zigang

HI, Joong:

Other than the RF designers, all of us coming from general software, general signal processing or general application engineering background.    And we were able to use and understand it.  I believe the integrated solution gives us the opportunity to use it without knowing RF.     

Best,

Zigang

Hi Zigang,

There are tons of material for us to follow and learn and implement Radar based on Ti mm wave tech.

It is all free to access and download the materials on your database published on the internet?

Best regards,

Joong LEE

CTO/pha

Hi, Joong:

Yes.  All the following are free and all the source code for all the demos are also free. 

1) mmWave software development kit (SDK) is located at: http://www.ti.com/tool/MMWAVE-SDK 

2) Provide a tool for raw data capture (additional hardware required: DCA1000 board).  The capture GUI is called TI mmwave radar studio, can be found at: http://www.ti.com/tool/MMWAVE-STUDIO

3) TI mmwave training videos can be found: https://training.ti.com/mmwave-training-series

4) The mmwave industrial toolbox, which includes a lot of more demos are located at: http://dev.ti.com/tirex/explore/node?node=AJoMGA2ID9pCPWEKPi16wg__VLyFKFf__LATEST  

And the datasheet and supporting document for iwr1642 can be found below as well.

https://www.ti.com/product/IWR1642?utm_source=google&utm_medium=cpc&utm_campaign=epd-rap-null-prodfolderdynamic_iwr-cpc-pf-google-wwe&utm_content=prodfolddynamic&ds_k=DYNAMIC+SEARCH+ADS&DCM=yes&gclid=EAIaIQobChMI4dXyq-6x6QIVyItaBR1tjQZFEAAYASAAEgKt5PD_BwE&gclsrc=aw.ds#tech-docs

Best,

Zigang