The second way, use MLAT enabled dump1090

https://github.com/antirez/dump1090/pull/23

http://www.satsignal.eu/raspberry-pi/dump1090.html

On Sun, Aug 25, 2013 at 4:13 PM, Jiao Xianjun <putaoshu@gmail.com> wrote:

Hi,

I want to use multiple rtl-sdr dongles to do some multi-antenna experiments.

Is it possible to read IQ samples from multiple rtl-sdr dongles in a synchronized manner?

I already have a glance at dump1090 codes, which is a project using rtl-sdr to decode aircraft broadcasting ADS-B messages in 1090MHz.

Seems that I should use rtlsdr_read_async() instead of rtlsdr_read_sync(), because that if rtlsdr_read_sync() is used, I have to call it multiple times sequentially. That looks not synchronized.

But rtlsdr_read_async() function only accept one rtl-sdr device as input parameter, and it will be blocked after it is called. So seems that it also can't be used for my purpose directly.

Also welcome any opinion on how to improve rtl-sdr lib/driver to support this feature.

Thank you.

BR

Jiao Xianjun