Changes between Version 3 and Version 4 of Tutorials/Wireless/GNURadioCFOEstimation

Timestamp:

Feb 9, 2024, 5:37:11 PM (10 months ago)

Author:

prasanthi

Comment:

—

Tutorials/Wireless/GNURadioCFOEstimation

@@ -185 +185 @@
 
 * Please make sure the USRP sink (TX) in TX_OFDM.grc is configured with sdr1-in1 ("addr=10.39.6.1"). Set the carrier frequency to 3GHz (3e9) and the subdev to be "B:0" (RF3). In this flowgraph, the sampling rate is set to 62.5 MSPS and the number of OFDM subcarriers set to 64. So the maximum CFO that can be detected is 62.5/(2*64) = 0.488 MHz.
-|| [[Image(usrp_sink_tx_ofdm.png, 600px)]] ||
+|| [[Image(usrp_sink_tx_ofdm.PNG, 600px)]] ||
 
 * Receive the OFDM waveform on sdr1-in2+rfdev4-in2 by running the flowgraph RX_OFDM_CFO_estimation.grc on srv2-lg1. Launch gnuradio-companion on srv1-lg1 
@@ -194 +194 @@
 
 * Please make sure the USRP source (RX) in RX_OFDM_CFO_estimation.grc is configured with sdr1-in2("addr=10.39.6.2"). Set the carrier frequency to 3GHz (3e9) and the subdev to be "B:0" (RF3).
-|| [[Image(usrp_source_rx_ofdm.png, 600px)]] ||
-
-* Start both the flowgraphs.
-
+|| [[Image(usrp_source_rx_ofdm.PNG, 600px)]] ||
+
+* Start both the flowgraphs to see receive IQ samples and per packet estimated CFO value at the receiver.
+|| [[Image(RX_OFDM_CFO_capture.PNG, 600px)]] ||
+