how can i get pure OFDM graph

funnygiraffe
Posts: 3
Joined: Sun Jun 10, 2018 10:11 am

how can i get pure OFDM graph

Postby funnygiraffe » Sat Jun 23, 2018 6:47 am

I'm currently doing a project on wifi-base distance meassurement. I found this paper : https://www.usenix.org/system/files/con ... asisht.pdf.
however, it's require to gain pure signal for later process. I'm curious how i can get this form esp32 , and can it's be done on arduino-ide.

and Does change in the radio channel corresponding to the change in wifi-sub freq.

ESP_Sprite
Posts: 2000
Joined: Thu Nov 26, 2015 4:08 am

Re: how can i get pure OFDM graph

Postby ESP_Sprite » Sun Jun 24, 2018 2:14 am

I don't think Arduino has specific calls for this, but given that Arduino uses a recent enough esp-idf release, you can use esp_wifi_set_csi_rx_cb to grab the CSI data.

A change in channels essentially changes the OFDM base frequency and as such also the absolute values of the subfrequencies.

funnygiraffe
Posts: 3
Joined: Sun Jun 10, 2018 10:11 am

Re: how can i get pure OFDM graph

Postby funnygiraffe » Thu Jul 26, 2018 10:38 am

Can you give us an example of its usage . I'm newbie on this field :D :D :D :D :D

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