AWR1642BOOST: Does one antena and 2Rx work?

Nilo Bateni

Part Number: AWR1642BOOST

Hello,

Can one reciever work with two antenna? (TWR1400,AWR1642BOOST,Dev pack)

i tried and got this error

[16:14:01] [RadarAPI]: ar1.ChirpConfig(1, 1, 0, 0, 0, 0, 0, 0, 1, 0)
[16:14:01] Status: Failed, Error Type: IF THE PROFILE CORRESPONDING TO PROFILE_INDEX IS NOT DEFINED
[16:17:25] [RadarAPI]: ar1.ChirpConfig(0, 0, 0, 0, 0, 0, 0, 1, 0, 0)
[16:17:25] Status: Failed, Error Type: IF THE PROFILE CORRESPONDING TO PROFILE_INDEX IS NOT DEFINED
[16:17:38] [RadarAPI]: ar1.ChirpConfig(1, 1, 0, 0, 0, 0, 0, 0, 1, 0)
[16:17:38] Status: Failed, Error Type: IF THE PROFILE CORRESPONDING TO PROFILE_INDEX IS NOT DEFINED

many thanks

nilo

over 5 years ago

0 Cesar over 5 years ago

TI__Guru*** 148334 points

Hi,

Yes, this should work.

In the error message it looks like the profile is not defined. Please review the configuration

thank you

Cesar

0 Kyle Cousino over 5 years ago in reply to Cesar

TI__Mastermind 24955 points

Nilo,

You need to define a profile first in the "SensorConfig" tab before creating any chirps based on that profile.

The steps in the "SensorConfig" tab are:

1. Define a profile

2. Create a chirp or set of chirps based on the profile defined in the previous step.

3. Construct a frame from the chirps defined in the previous step.

Regards,
Kyle

0 Nilo Bateni over 5 years ago in reply to Kyle Cousino

Intellectual 510 points

Thank you.

It almost works now. However i have the following problems

the data that it is gathered, it doesn't show anything most of the time, in PostProc , distance to velocity.

we have attemted to move around with different velocity but it doesn't show.

i have found the following document on example of chirp configurations for typical applicatuons

www.ti.com/.../swra553a.pdf

where there is a table with different parameters that i can't find in the mmwave studio, do you know if i should use them and if so how to calculate and use them in mmwave studio?

Also what difference does it make to choose different profiles for different chirps or not?

And finally when there is 2 Tx and 1Rx, do both antenna work together or seperatly with different time frame?

many thanks,

Nilo

0 Kyle Cousino over 5 years ago in reply to Nilo Bateni

TI__Mastermind 24955 points

Nilo,

Please keep in mind that when you only use a single RX antenna, you will not be able to extract range-angle information. You need at least 2 RX antennas to determine angle information. With only 1 RX enabled, all you can extract is range information. Without additional RX antennas, you have no way of comparing the differences in phase between the RX antennas. This will help you calculate angle information. This is why your range-angle plot appears empty. If you look at just your 1D FFT output plot, then you can extract information.

And depending on the scheme you want to use, you can either have each TX transmit independently in TDM-MIMO fashion or have the TX antennas transmit simultaneously. Each scheme offers different benefits. More information is available in our TI whitepapers or other resources online.

Regards,
Kyle

0 Nilo Bateni over 5 years ago in reply to Kyle Cousino

Intellectual 510 points

Kyle,

Thank you for your reply.

Is that also why 2D FFT amplitude shows nothing?

I found the following note but i was wondering how to set the chirp phase in mmwave studio?

Many thanks,

Nilo

0 Kyle Cousino over 5 years ago in reply to Nilo Bateni

TI__Mastermind 24955 points

Nilo,

The phase shifter settings are controlled in the "BPMConfig" tab of mmWave Studio.

Regards,
Kyle

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AWR1642BOOST: Does one antena and 2Rx work?