Search found 4 matches

by RobinTheunis
Thu Jul 20, 2017 7:43 am
Forum: General Discussion
Topic: Raw RF interface, possible?
Replies: 9
Views: 16248

Re: Raw RF interface, possible?

specifically, you would want to use this for I have done some lot of stuff about indoor ranging and localization. My method is based on doing some computational stuff on the channel estimation when I send a known sequence. The method uses a lot of properties of OFDM signals, like time domain correl...
by RobinTheunis
Wed Jul 19, 2017 11:35 am
Forum: General Discussion
Topic: Raw RF interface, possible?
Replies: 9
Views: 16248

Re: Raw RF interface, possible?

Mhh, there is no low leveller interface yet? With the sniffer interface there is still some wifi stuff hidden away. The goal is to get rid of it. Ideally something like, I want this OFDM scheme with these sub carriers with each running a BPSK constellation. That not every OFDM scheme is possible I u...
by RobinTheunis
Wed Jul 19, 2017 10:26 am
Forum: General Discussion
Topic: Raw RF interface, possible?
Replies: 9
Views: 16248

Re: Raw RF interface, possible?

Something more low leveller wouldn't be possible? I don't know how the WiFi baseband is implemented on the ESP32 but I would figure that some more low level interface would be possible. For example is it possible to get the raw subcarriers after the FFT on the receiver? Before mapping it into a QAM ...
by RobinTheunis
Tue Jul 18, 2017 8:21 pm
Forum: General Discussion
Topic: Raw RF interface, possible?
Replies: 9
Views: 16248

Raw RF interface, possible?

Let's talk about using the wifi PHY for other things. With the current SDK I think we have zero control of the physical layer because there is a wifi stack running on top of it. For an application I want to play with different types of packets and signals. My goal is to make my own protocol without ...