AWR1443: Idle time and ramp End time are different from configuration compared with measurement.

Jesse Wang

Part Number: AWR1443

Hi,

We use VNA to measure the chirp signal, and find out the measure results are difference from the mmWave Radar Studio configuration. Is this configuration problem?

Please see below the problematic portion with measured plots.

Q1: Idle time measurement result 68us is much longer than configuration setting of 3us.

Q2: Ramp end time measurement is shorter (82us) than expected 148us.

Q3: Due to ramp end time is shorter, the real Bandwidth measured (~240MHz) is also smaller than configuration ~435MHz.

The Radar Studio setting:

The VNA result:

over 7 years ago

0 Vivek Dham over 7 years ago

TI__Guru 58035 points

Hello Jesse,

Could you clarify which PG version of the AWR1443 device they are using, are they using the latest mmwave studio package with the RF_eval firmware in that package ? (www.ti.com/.../MMWAVE-STUDIO).

Regards,

Vivek

0 Jesse Wang over 7 years ago in reply to Vivek Dham

TI__Intellectual 2285 points

After checking the VNA equipment again, the reason is the trigger point set on VNA is from center frequency not, the starting frequency. Now the measurement is matching with configuration.

Sensors

Sensors forum

AWR1443: Idle time and ramp End time are different from configuration compared with measurement.