AWR1843AOP: AWR1843AOP for ADAS

Fong Zi Hao

Part Number: AWR1843AOP
Other Parts Discussed in Thread: AWR1843BOOST

Tool/software:

Hi. I am interested in developing a custom PCB board with AOP chip for ADAS applications, particularly radar and camera fusion detecting cars at range >100m. Currently I am looking at AWR1843AOP with the out of box demo firmware. Using mmWave sensing estimator tool, I was able to obtain max range of 107m for cars object with desired configuration set as 'Long Range Default' (cfg shown below), and it seems to match quite well with the max range formula. So I have a few questions

profileCfg 0 76 2 3.8 19.06 0 0 14.97 1 178 12481 0 0 30
channelCfg 15 7 0
adcbufCfg -1 0 1 1 1
chirpCfg 0 0 0 0 0 0 0 1
chirpCfg 1 1 0 0 0 0 0 2
chirpCfg 2 2 0 0 0 0 0 4
frameCfg 0 2 81 0 33.33 1 0
mm
1. Is the configuration parameters compatible with the out of box demo firmware? Because I wasn't able to achieve the same results with the mmWave demo visualizer tool.

2. MRR Beamsteering and Medium Range Radar lab is capable of detecting 150m. Does it support AWR1843AOP as of now? I read that you would need to rebuild the lab to support only MRR subframes. Has this been verified and how would this affect the performance compared to BOOST EVM?

6 months ago

+1 Samhitha Bobba 6 months ago

TI__Mastermind 19980 points

Hi,

Refer to the following E2E for maximum range that can be detected using AWR1843AOP - (+) AWR1843AOPEVM: Detect the maximum distance by AWR1843AOP - Sensors forum - Sensors - TI E2E support forums.

Fong Zi Hao said:
1. Is the configuration parameters compatible with the out of box demo firmware? Because I wasn't able to achieve the same results with the mmWave demo visualizer tool.

Sensing estimator is provided for reference. It might not provide accurate results for AWR1843AOP as it's not tested in the recent years.

Fong Zi Hao said:
MRR Beamsteering and Medium Range Radar lab is capable of detecting 150m. Does it support AWR1843AOP as of now? I read that you would need to rebuild the lab to support only MRR subframes. Has this been verified and how would this affect the performance compared to BOOST EVM?

If you want to detect an object at a range greater than 100m, I suggest you to use AWR1843BOOST EVM.

You can refer to (+) AWR1843AOPEVM: "Running the Medium Range Radar on AWR1843AOP" - Sensors forum - Sensors - TI E2E support forums and (+) AWR1843AOP: Use MRR beamsteering on AWR1843AOP - Sensors forum - Sensors - TI E2E support forums.

Regards,

Samhitha

0 Fong Zi Hao 6 months ago in reply to Samhitha Bobba

Prodigy 95 points

Thanks for the reply. This is actually a student project and due to budget constraint we will be designing custom PCB with the AOP chip by including the essential features only. Since MRR demo with better maximum range can be deployed on the AWR1843AOP, then I think it should be ok. For the sensing estimator, using the same parameters shown above but for AWR1843BOOST, the maximum range turns out to be 76m which is lower than AWR1843AOP (107m), is this normal? I was expecting a longer range on the BOOST since it has external antenna.

+1 Samhitha Bobba 6 months ago in reply to Fong Zi Hao

TI__Mastermind 19980 points

Hi Fong,

Fong Zi Hao said:
For the sensing estimator, using the same parameters shown above but for AWR1843BOOST, the maximum range turns out to be 76m which is lower than AWR1843AOP (107m), is this normal? I was expecting a longer range on the BOOST since it has external antenna.

As mentioned in the previous reply, sensing estimator is provided for reference. I suggest you to check Programming Chirp Parameters in TI Radar Devices (Rev. A) to adjust the chirp parameters and understand how maximum range is calculated.

Regards,

Samhitha