ASPIS is able to detect and provide information on most of the types of GNSS spoofing attacks.
It requires in inputs several receiver raw data (for info make a request with the form below) and it provides the following outputs:

•  Time tag: it is the epoch at which the relevant spoofing information are relevant to.
• Spoofing flag: It is a true/false information that indicate with the value “0” that all constellations are predicted to be authentic, and with the value “1” that a least one constellation/satellite is estimated to be under a spoofing attack.
• Spoofed constellation ID: it is a byte containing the information on which GNSS constellation(s) in being attacked. If a bit is set to “1”, the corresponding constellation is under attack.
• Number of Spoofed Satellites (N): it contains the number of satellites for which it has been detected an attack of spoofing.
• Spoofed Satellite(s) ID: it is a vector, of length N, containing the PRN number of all the satellites affected by the spoofing attack. It will provide an unique identifier to distinguish the satellites among the different constellations.
• Spoofed Frequency(ies) ID: it contains the frequency ID(s) that have been detected to be under spoofing attack (it can be one or multiple) for each satellite/constellation.
• Spoofing type ID: this parameter indicates the type of spoofing attack

The ASPIS probability of detection, in nominal conditions, is better than 95%.