CCS/AWR1843BOOST: The function quadraticInterpLog2ShortPeakLoc in the MRR demo

Rata Zhang

Part Number: AWR1843BOOST

Tool/software: Code Composer Studio

Hi,

There is a function called quadraticInterpLog2ShortPeakLoc which performs a quadractic peak interpolation to compute the fractional offset of the peak location, it is called as belows:

interpOffset = quadraticInterpLog2ShortPeakLoc(obj->cfarDetObjIndexBuf, obj->numDopplerBins, detIdx1, (CFARTHRESHOLD_N_BIT_FRAC + obj->log2numVirtAnt));

Here, obj->cfarDetObjIndexBuf is an doppler index array, is there any error in invking this function? Whether obj->sumAbs should supersede it? And should the detIdx1 be repalced by obj->cfarDetObjIndexBuf[detIdx1]?Is that right?

Thanks,

Regards,

Rata

over 4 years ago

0 Raghunandan Kamath over 4 years ago

TI__Mastermind 22155 points

Rata,

I will have to check this with our algo experts . But have you validated by modifying the code and checking it yourself and what are your observations?

-Raghu

0 Rata Zhang over 4 years ago in reply to Raghunandan Kamath

Expert 2405 points

Hi Raghu,

I have not validated,I just look at the code, and it doesn't make sense, so I want to confirm my thought.

BR,

Rata

0 Jitendra Gupta over 4 years ago in reply to Rata Zhang

TI__Guru 68160 points

Hi Rata,

I would request you to go over the demo documentation and training materials.

And find the online literature to implement this algo/logic as per your requirement.

Regards,

Jitendra

0 Rata Zhang over 4 years ago in reply to Jitendra Gupta

Expert 2405 points

Hi Jitendra，

I have validated my thought and my thought is right.

BR,

Rata

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CCS/AWR1843BOOST: The function quadraticInterpLog2ShortPeakLoc in the MRR demo