266 – Secondary Surveillance Radar
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Guest: Mike Sharples Host: Markus Voelter Shownoter: Stefan Rillaert
Secondary surveillance radar (SSR) is the radar technology used in aviation to query transponders; it forms the backbone of today’s air traffic control infrastructure. Our guest in this episode is Mike Sharples who has been part of the development of the technology and is intimately familiar with the details. We discuss the importance of SSR today, the details of the protocol, the difference between and evolution from Mode A/C to S as well as the relationship to ADS-B.
Introduction
00:02:31Michael Sharples | COMSOFT Solutions | Royal Signals and Radar Establishment | Mode S
Overview primary and secondary radar
00:04:56Radar | Primary radar | Chain Home | Bistatic radar | Multistatic radar | Secondary surveillance radar | Transponder | Identification friend or foe | Aviation transponder interrogation modes | Plot extraction | Signal processing | Garbling/Degarbling | Matched filter | Monopulse radar | Sliding window | Pulse repetition frequency | Side lobe | Side Lobe Suppression
Mode S
00:48:01(American) history of Mode S | DABS/ADSEL | Mode S 24-bit address | Controller–pilot data link communications (CPDLC) | Aircraft Communications Addressing and Reporting System (ACARS) | Mode S error correction | Mode S Uplink | Mode S Downlink | Mode S Interrogation | FLARM (Episode 143 – Collision Avoidance with FLARM) | Mode S Enhanced Surveillance (EHS)
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Markus,
I found your podcast on SSR very interesting. I used to work on the other side of the RADAR Sensor, for the Lockheed Martin building software for the FAA. I have an article I wrote about 10 years ago about that for the TRACON software:
http://www.linuxjournal.com/article/7066
I left Lockheed to go to work for the airlines after working on ERAM and ATOP (the oceanic version of ATC).
Just thought my article might be interesting to you and your listeners.
Tom
Cool, thanks Tom!
A great episode on a subject I’ve wanted to know more about for ages!
As a new radar engineer, this has been fantastic revision source!
Very very nice.I like to listen his episode and Its really interesting to hear.