What is Timestamp in radar sensors?

Hardware Platform: [NVIDIA DRIVETM AGX System (E3550)]
Software Version: [DRIVE Software 10]
Host Machine Version: [native Ubuntu 18.04]
SDK Manager Version: [1.0.0-5517]
Radar Sensor:[ARS430RDI]

For our project, We will use DriveWorks API to get radar sensor data.
Use dwSensorRadar_readScan, we can get raw data and some information.

I have two question for radar data.

  1. What is Host Timestamp?
    Host Timestamp is system time of DRIVE OS when the radar frame start is asserted?
    Or meta-data from radar sensor?
  2. What is Sensor Timestamp?
    Elapsed time from the Host timestamp?

Regards,

Hi @Tak.Kiyo,

Pleas refer to our webinar on Integrating Custom Sensors Using NVIDIA DriveWorks
where it also discusses the way of time synchronization of sensors.

if you have further questions regarding this subject, pleas let up know.
thanks

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Hi @shayNV,

Thank you for your reply.
I will check that webinar first.

Regards,

I have took that webinar, and I got relationship between Host and Sensor Time stamp.
And now I have one more question.

Q. What Time domain is used in CONTINENTAL_ARS430?

I think Sensor Timestamp of CONTINENTAL_ARS430 is in Host time domain.
So sensor timestamp that is got through standard SAL is synchronizeed to SoC system clock.
Is that correct?

Regards,

Hi @Tak.Kiyo,

yes, a sensor that supports gPTP will have the timestamp be synchronized with the host time domain.

Thank you for your great support.

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