AWR2243BOOST: Parameters calculation

Iulian Sava

Part Number: AWR2243BOOST

Hello!

I have done some calculation for parameters necessary in signal processing and I want to ask your opinion if I did it right..

bandwidth = freqSlopeConst * numAdcSamples / digOutSampleRate;

rangeResolution = C * 1e-09 / (2 * bandwidth );

rangeMax = C * numAdcSamples * 2 * 1e-09 / (4 * bandwidth);

velocityResolution = C * 2 * 1e-03 / (2 * startFreqConst * (idleTimeConst + rampEndTime) * chirpCount * num_Tx);

Where

bandwidth should be in Ghz

rangeResolution should be in m

rangeMax should be in m

velocityResolution should be in m/s

And

freqSlopeConst is mHz/us

digOutSampleRate is ksps

startFreqConst is Ghz

idleTimeConst is us

rampEndTime is us

I am also confused about the data format, what is the diference between complex and complex2? For maxim range and velocity resolution i multiplied the value by 2 thinking there are complex numbers, it is correct?

Thanks,

Iulian

over 2 years ago

0 Pradipta Bandyopadhyay over 2 years ago

TI__Mastermind 32845 points

Hi,

Please refer to the below applaiction notes for more information on these parameters and data format.

Programming Chirp Parameters in TI Radar Devices (Rev. A)

Mmwave Radar Device ADC Raw Data Capture (Rev. B) (ti.com)

Thanks,

Pradipta.

0 Iulian Sava over 2 years ago in reply to Pradipta Bandyopadhyay

Prodigy 70 points

Hello,

I read the proposed documents but still can figure it out if what i have done is right or not.

Can you please give me a more clear sugestion?

Thanks,

Iulian

0 Pradipta Bandyopadhyay over 2 years ago in reply to Iulian Sava

TI__Mastermind 32845 points

Hi,

The application note does document all the formulas required. If you need further clarification, then i will suggest you watch the training videos.

mmWave radar sensors | TI.com

Thanks,

Pradipta.

Sensors

Sensors forum

AWR2243BOOST: Parameters calculation