getRadioTime

Get current USRP radio time

Since R2023b

Syntax

getRadioTime(radio)

Description

getRadioTime(radio) returns the current USRP™ radio time associated with the radio System object radio.

Examples

Get USRP Radio Time

Create an SDRu receiver System object. Set the pulse per second (PPS) signal source to be the PPS signal from a GPSDO.

rx = comm.SDRuReceiver(Platform="B210",SerialNum='3136D5F',...
                     PPSSource="GPSDO",ClockSource="GPSDO",...
                     EnforceGPSTimeSync=true,SamplesPerFrame=20000);

Get the current USRP radio time.

GPSLockStatus = 0;
    while ~GPSLockStatus 
        disp("Trying to lock to GPS constellation ...");
        GPSLockStatus =  gpsLockedStatus(rx);
    end  

Trying to lock to GPS constellation ...

linux; GNU C++ version 10.3.0; Boost_107800; UHD_4.2.0.0-vendor

---------- see libuhd version information above this line ----------

disp("GPS Locked");

GPS Locked

rx_data = rx();

USRP time synchronized to GPS time

radTime = getRadioTime(rx);
d = datetime(radTime,'ConvertFrom','posixtime','Format','MM/dd/uuuu HH:mm:ss','TimeZone','Asia/Calcutta');
fprintf('The current USRP radio time is %s',d)

The current USRP radio time is 07/27/2023 16:29:31

release(rx); 

Input Arguments

radio — USRP radio

comm.SDRuTransmitter System object | comm.SDRuReceiver System object

USRP radio, specified as a comm.SDRuTransmitter or comm.SDRuReceiver System object. This radio must be connected to the host computer.

Version History

Introduced in R2023b