DCA1000EVM: What does Blue and Red dots in "Detection & Angle Estimation Results" plot of mmWave Studio represent

Palguna Kumar Reddy Gopireddy

Part Number: DCA1000EVM
Other Parts Discussed in Thread: AWR1843

Tool/software:

I am using AWR1843 with DCA1000 EVM for getting raw data.

After getting raw data using mmWave Studio Application, I have clicked on postProc button to view the plots for the data.

In the "Detection & Angle Estimation Results" plot displayed in RadarStudio postProcessing window, the point clouds are appearing with three colors.

The green color point clouds represent the actual targets, because they are appearing in every frame.

But in frame 93, I see some point clouds appearing with blue color, in frame 104 some point cloud appearing with red color

My question is "What does this blue color, red color represent. I believe if the false alarms are present, they should be represented as one color only. Should I take the blue color point clouds as clutter?"

Here are the plots of frame 93,104:

6 months ago

+1 shruti gupta 6 months ago

TI__Expert 6540 points

Hi Palguna,

You can refer to section 21.1.1.3 Detection and Angle estimation Results in mmwave studio user guide. The color coding is mentioned there.

Regards,

Shruti

0 Palguna Kumar Reddy Gopireddy 6 months ago in reply to shruti gupta

Prodigy 141 points

Thank you very much. Could you please tell which code to use for getting the point clouds. As clicking postProc button builds these plots, there should be a code in mmWave Studio installation folder for getting these plots. I am having difficulty in finding the mat file used to prepare the point clouds and the CFAR algorithm used.

This helps me in manually plotting them and change the values like probability of false alarm, guard length etc, depending on specific targets i want to observe. etc.

0 shruti gupta 6 months ago in reply to Palguna Kumar Reddy Gopireddy

TI__Expert 6540 points

Hi Palguna,

You can get the mmwave studio for awr1843 from the following link -

MMWAVE-STUDIO IDE, configuration, compiler or debugger | TI.com

Here if you check the path mmwave_studio_02_01_01_00\mmWaveStudio\MatlabExamples from here you will get some reference files.

Regards,

Shruti

0 Palguna Kumar Reddy Gopireddy 6 months ago in reply to shruti gupta

Prodigy 141 points

Yeah thanks. I am checking them. Some things are not understood like which path is sent to the functions defined and how the config defined in mmWave studio. I'll try more and get back if needed help.

Thanks for the help

0 Palguna Kumar Reddy Gopireddy 6 months ago in reply to shruti gupta

Prodigy 141 points

Hi shruti,

I have seen the code in "mmwave_studio_02_01_01_00\mmWaveStudio\MatlabExamples" folder

the subfolder "singlechip_raw_data_reader_example" provides the code for getting raw ADC data in unit16 format and the range FFT. output

It doesn't provide the code for doppler-FFT, CFAR, angle-FFT, and clustering etc. I saw some of these in the subfolder "4chip_cascade_MIMO_example".

But while getting data of AWR1843 using DCA1000, i selected single chip in the mmWave studio.as shown in DCA1000 Training Video | Video | TI.com.

So where do you think the remaining code for single chip exist. Do you think the code for single chip is same as that provided in cascade code? Which code was used by "postProc" of mmWave studio for generating the plots like "2D FFT amplitude profile", "range angle", and "Detection and Angle estimation Results"

0 shruti gupta 6 months ago in reply to Palguna Kumar Reddy Gopireddy

TI__Expert 6540 points

Hi Palguna,

Yes, you can use the cascade code as a reference. The actual post proc scripts have not been given in the package.

Regards,

Shruti

0 Palguna Kumar Reddy Gopireddy 6 months ago in reply to shruti gupta

Prodigy 141 points

i mean postproc should be using some code right. without the codes there's no way it plots them.

the documents explain theoriticl things, but it's hard to develop code from them and use it for custom applications.

0 shruti gupta 6 months ago in reply to Palguna Kumar Reddy Gopireddy

TI__Expert 6540 points

Hi Palguna,

The actual post proc scripts are not a part of the package. You can take the reference from the available code and implement your own code. Or you can just directly use the demo available for the same.

Regards,

Shruti

0 Palguna Kumar Reddy Gopireddy 6 months ago in reply to shruti gupta

Prodigy 141 points

where is this demo available?

0 shruti gupta 6 months ago in reply to Palguna Kumar Reddy Gopireddy

TI__Expert 6540 points

Hi,

You can get the SDK here, go over the user guide and follow the steps.

AWR1843 data sheet, product information and support | TI.com

Regards,

Shruti

0 Palguna Kumar Reddy Gopireddy 6 months ago in reply to shruti gupta

Prodigy 141 points

Thanks. But there is no SDK in that link and the user guide in that link https://www.ti.com/lit/pdf/swru520 doesn't show any steps. I think you have given another link by mistake.

0 shruti gupta 6 months ago in reply to Palguna Kumar Reddy Gopireddy

TI__Expert 6540 points

Hi,

If you go down in the same page, you will get the SDK. Read the description properly.

attaching the snapshot for your reference. you just have to scroll down in the same page.

Hope this resolves your query.

Regards,

Shruti

0 Palguna Kumar Reddy Gopireddy 6 months ago in reply to shruti gupta

Prodigy 141 points

THanks.

The mmWave SDK doesn't provide the data processing steps . It only provides the demo.

The original query is resolved. But the prcessing steps still are not. I created a thread for it MMWAVE-STUDIO: How to perform CFAR, clustering, AngleFFT, dopplerFFT for singleChip mmWave device - Sensors forum - Sensors - TI E2E support forums.

Thank you

0 shruti gupta 6 months ago in reply to Palguna Kumar Reddy Gopireddy

TI__Expert 6540 points

Hi,

Closing this thread here.

Regards,

Shruti