ExternalVendorCode/openwifi
1
0
Fork 0
mirror of https://github.com/open-sdr/openwifi.git synced 2024-12-18 21:28:07 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Update iq_2ant.md

Browse Source
This commit is contained in:
Jiao Xianjun 2022-03-08 10:17:25 +01:00 committed by GitHub
parent 57b28bf209
commit abac655ded
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
doc/app_notes/iq_2ant.md
View File

@ -7,6 +7,8 @@ SPDX-License-Identifier: AGPL-3.0-or-later
Instead of [**normal IQ sample capture**](iq.md), this app note introduces how to enable the I/Q capture for dual antennas. Besides the I/Q from the main antenna (that is selected by baseband), the I/Q samples from the other antenna (monitoring antenna) is captured as well (coherently synchronized) in this dual antenna mode. You are suggested to read the [**normal IQ sample capture**](iq.md) to understand how we use the side channel to capture I/Q samples by different trigger conditions.
(By default, openwifi Rx baseband is muted during self Tx, to unmute Rx baseband and capture self Tx signal you need to run "./sdrctl dev sdr0 set reg xpu 1 1" after the test running)
This feature also support capturing TX I/Q (loopback) to test the baseband transmitter.
- [[Quick start for collision capture](#Quick-start-for-collision-capture)]