TIDEP-0091: Maximum range that can be achieved

Prudhvi Sagar

Part Number: TIDEP-0091
Other Parts Discussed in Thread: IWR1443,

Hello,

What is the maximum distance that can be detected with TIDEP-0091? I have used the default codes for both IWR1443 and MSP432. Standalone IWR1443 BOOST I have tested upto 80m and works nicely. I have designed a horn which filters the RF signals well.

Regards,

Prudhvi Sagar

over 5 years ago

0 Vaibhav Mahimkar over 5 years ago

TI__Mastermind 23570 points

Hello Prudhvi,

Glad to know you have been able to reproduce the demo and have it working at distance of 80m. Please see the Design guide's System overview section that mentions the range of current default code to be 10m to 100m range.

Power Optimization for IWR1443 77-GHz Level Transmitter Reference Design (Rev. B)

Range depends on the configuration used for the FMCW device parameters.

You might want to check our Out Of Box demo to understand how varying the configuration allows varying the maximum distance of measurement.

Please let us know if you have further questions.

Thank you,

Vaibhav

0 Prudhvi Sagar over 5 years ago in reply to Vaibhav Mahimkar

Genius 3785 points

Hello,
The 80m range was tested with standalone IWR1443 demo visualizer. Will the performance be same even with TIDEP-0091 default code? How can I change the FMCW parameters for TIDEP-0091,

Regards,
Prudhvi Sagar

0 Akash Gondalia over 5 years ago in reply to Prudhvi Sagar

TI__Guru 50240 points

Hi Prudhvi,

The TIDEP-0091 is configured for a 15 meter configuration and has a 30 meter configuration included in the demo.h file (This is where the chirp parameters are set).

The chirp budget calc spreadsheet, on the TIDEP-0091 page, includes both the 15 and 30 meter configurations but also 50 and 100 meter configurations that you can implement by altering the parameters listed in the demo.h file.

Let me know if you have more questions.

Cheers,
Akash

0 Prudhvi Sagar over 5 years ago in reply to Akash Gondalia

Genius 3785 points

Hello,
Thank you for the support. I have now understood how to edit the parameters for TIDEP-0091.

I haven't found the accuracy I can achieve with each configuration. Assuming I setup my (board + reflecting surface + horn) perfectly what is the best accuracy I can achieve theoretically for the 30 m case and 15 m case?

Regards,
Prudhvi Sagar

0 Akash Gondalia over 5 years ago in reply to Prudhvi Sagar

TI__Guru 50240 points

Hi Prudhvi,

The theoretical Accuracy is going to be about 3-4 cm for both of these cases.

Cheers,
Akash

0 Prudhvi Sagar over 5 years ago in reply to Akash Gondalia

Genius 3785 points

Hello,
Thank you for the support.

Regards,
Prudhvi Sagar

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TIDEP-0091: Maximum range that can be achieved