RuntimeWarning encountered when using CSIkit with Nexmon's CSI

[asjkb1231]

Hello,

I am currently using Nexmon's CSI acquisition tool to capture CSI for a 4x2 antenna configuration. My setup involves an Asus RT-AC86U as the receiver and a PC as the transmitter, with another Asus RT-AC86U for monitoring. I am using iperf for communication.

When I attempt to run CSIkit on the pcap file I obtained from this setup, I encounter the following error:

RuntimeWarning: invalid value encountered in multiply
return csi * np.sqrt(scale)

I suspect there may be an issue with the data I am capturing. I am aiming to capture CSI for 8 paths, but the pcap file shows that 16 paths are being received, with 8 of them having a value of 0.

I have attached an image of the pcap file for your reference.

I would greatly appreciate any insights or advice you might have on this issue.

Best regards,

[liuchengzhi314159]

Hello,

I am currently using Nexmon's CSI acquisition tool to capture CSI for a 4x2 antenna configuration. My setup involves an Asus RT-AC86U as the receiver and a PC as the transmitter, with another Asus RT-AC86U for monitoring. I am using iperf for communication.

When I attempt to run CSIkit on the pcap file I obtained from this setup, I encounter the following error:

RuntimeWarning: invalid value encountered in multiply return csi * np.sqrt(scale)

I suspect there may be an issue with the data I am capturing. I am aiming to capture CSI for 8 paths, but the pcap file shows that 16 paths are being received, with 8 of them having a value of 0.

I have attached an image of the pcap file for your reference.

I would greatly appreciate any insights or advice you might have on this issue.

Best regards,

Hello I would like to ask the following what should I do or what command should I enter to achieve my purpose: I would like to use nexmon on a raspberry pi 4b to get the csi information and just keep it locally for subsequent work.
System version: linux kernel 6.1 Already replaced the supporting driver.