Leading design system and method for massive mobile phone users to synchronously access satellite

The invention provides a leading design system and method for a large number of mobile phone users to synchronously access a satellite. According to the method, a computer combines a minimum communication elevation angle of a mobile phone, an equivalent cell diameter and a satellite height to calculate a leading time-frequency resource format according to an input scene parameter and a target network type; calculating normalized carrier frequency deviation of a mobile phone user by combining the mobile phone moving speed, the carrier frequency, the included angle of the mobile phone moving direction and the included angle of the mobile phone incident wave direction, and setting a subcarrier frequency interval; generating an initial ZC sequence; constructing a leader sequence for the initial ZC sequence in a short sequence cascading manner; and carrying out differential sequence amplitude distribution on the preamble sequence in combination with autocorrelation peak value and pseudo peak value data. According