Setup

Need MATLAB 2011a or above.

Dependency

You will need a USRP or similar devices to record data in IQ format.

I - 16 Bits Q - 16 Bits

Description

Dump 1090 is a Mode S decoder specifically for processing data offline.

The main features are:

• Single bit errors correction using the 24 bit CRC.
• Ability to decode positions and velocities of airplanes
• Decode raw IQ samples from file

Usage

Run the dump1090.m

Specify the parameters as follows:

seconds = 2;
dataPath = 'C:\USRP_DATA\ADSB';
filename = 'adsb_set_10MHz.dat';
sampRate = 1e7;

The sampRate depends on the sampling rate you are using for recording the raw IQ data.

You will get output like this:

 -- We find a packet ... 
 -- Start index is 18385412 ... 
 -- DF type is 11 ... 
 -- Plane ID is 750257 ... 
 
          ew_dir: 0
     ew_velocity: 136
          ns_dir: 1
     ns_velocity: 258
vert_rate_source: 0
  vert_rate_sign: 1
       vert_rate: 23
         cprtime: 19292471
        accuracy: 'Error < 0.3m/s'
        velocity: [1x3 double]
           plane: '7502AD'

Credits

Most of the implementation comes from antirez's dump1090: https://github.com/antirez/dump1090/

You can find more powerful implementation at https://github.com/MalcolmRobb/dump1090

License

Under the MIT license