IWRL6432BOOST: Angle resolution equation

Hi Tim

That seems to be a max resolution.

I am looking for the fundamental equation that gives the resolution as per the antenna's enabled configuration.

Regards

Aditya

Hi
I went through the docx, and it was really helpful in understanding the effect of antennas on resolution. However, I am still puzzled about how to obtain the resolution for a particular antenna mask selection.

Pleas provide some insights into this.

Regards
Aditya

Hi Tim

I want to know how the equivalent virtual antennas are calculated for elevation and azimuth resolution.

Like is it, for elevation, we consider only Rx2 and TX1 and Tx2, and based upon selection, we calc virtual antennas,

and for azimuth , we consider only Rx1 , Rx3 and Tx1 ,Tx2, and based upon selection we calc virtual antennas,

Is my understanding correct?

Regards
Aditya

Hi Aditya, 

Sorry for the delay, I will get back to you within 24 hours.

Regards,

Tim

Hi, 

Can you provide the antennas app note?

The one provided earlier doesn't provide any info for elevation and azimuthal resolution for virtual antennas calculation.

I didn't understand your inference

Even if RX1 is disabled how it maintain the same elevation resolution?

Why azimuthal resolution depends on rx2.

From the imagae we can see rx2 is having an elevation in comparison to other rx

I want to know the logic of  how the antennas are identified whoch have azimuthal resolution dependency or elevation resolution dependency?

Also, the elevation resolution depends on both tx, correct? 

Hi 
If Azimuth is dependent on all 3 RX antennas and both TX antennas.
Then ThetaRes=2/N=2/(6) equivalent to  19.0986 degree and not 29 as written in the docx

But if we consider If Azimuth depends on all 2 RX antennas(1 and 3)and both TX antennas.

Then ThetaRes=2/N=2/(4) equivalent to  29 degrees, as written in the docx

Hi 
If Elevation is dependent on RX1 and RX2 or RX3 and RX2.

Does that mean, for elevation resolution calculation it considers only 1 TX antennas for virtual antennas calculation
Then ThetaRes=2/N=2/(2) [2rx,1 tx] equivalent to  58 degree ,as written in the docx

If you tell me how the azimuth and elevation angle is calculated for 3.7 IWR6843ISK-ODS Antenna, it will be helpful.

Hi Aditya,

Sorry for the delayed response. See this page to visualize the virtual antenna array of the ODS device.

https://dev.ti.com/tirex/explore/node?a=1AslXXD__1.10.00.13&node=A__ADotEuN1hgwH3gDQJNTkmg__radar_toolbox__1AslXXD__1.10.00.13

For that we can do 120* FOV / 4 RX antennas in both directions to get the 30* resolution figures in both azimuth and elevation. I imagine there are some other factors like material etc. that make the actual resolution 29* as stated on that page.

Does this help?

Regards,

Tim

Please reply to other queries above-mentioned 

How the virtual antennas are calculated for both azimuthal and elevation, please explain, which combination is taken(tx ,rx) to get best mentioned resolution in azt and elev.,for calculation of virtual antennas, using theta =2/N

This is is in regard to ODS.