I seem to remember that Brian Trubshaw's book covered the intake issues with Concorde in great detail.
As there are ex-Concorde pilots on line here, you may get a better reply, but from memory, it came down to scheduling of the intake ramps to prevent surge.
A 1960's computer was responsible for all the computations and I believe even today the infomration is deemed "commercially sensitive". There was a rumour that these computers were removed from the aircraft adter their final flights by the respective airlines - of course it might have been Airbus ensuring that no-one had the opportunity for a joyride
Incidently, the SR-71 also suffered from surges (called an unstart) when airflow disturbance caused the engine thrust to decay. It accounted for the loss of at least on eairframe due to the high yaw rate induced by such an event at Mach 2.5+.
Regards,
Shuttlebus