AWR1243BOOST: chirp distribution within one frame

yawen fan

Part Number: AWR1243BOOST
Other Parts Discussed in Thread: AWR1243

Hi,

I have AWR1243+TSW1400 to capture the raw data from the sensor. I am using the radar radio for configuration. I have a question on the chirp distribution within one frame. My setting is as below:

The idle time is 100 us. The ramp end time is 60 us. Therefore the total length for one chip is 160 us. I have 128 chirps within one frame and the periodicity is 40 ms. Therefore, the time interval within one frame for the chirps is (100+60)*128 us = 23.04 ms.

My question is, since the frame length is 40 ms, are the 128 chirp uniformly distributed within the 40 ms frame?

Thanks,

over 6 years ago

0 Cesar over 6 years ago

TI__Guru*** 148094 points

No,

The chirps take the first 23.04ms

Please see following snapshot of frame structure

0 yawen fan over 6 years ago in reply to Cesar

Prodigy 140 points

Hi Cesar,

Thanks for the response! This solves my question! By the way, I am wondering where I could find the figure you posted?

Thanks!

0 Cesar over 6 years ago in reply to yawen fan

TI__Guru*** 148094 points

You can find it in the mmWave SDK demo documentation.

The mmWave SDK applies to programmable platforms such as xWR14xx and xWR16xx.

You can dowload it from here

www.ti.com/.../MMWAVE-SDK

For example, you could download v 2.01.00.04

After installation, you can find the demo documentation in

file:///C:/ti/mmwave_sdk_02_01_00_04/docs/mmwave_sdk_module_documentation.html

Select "xwr16xx_mmw_Demo"

Thank you
Cesar

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AWR1243BOOST: chirp distribution within one frame