Sampling method for a spread spectrum communication system

By a sub Nyquist rate, are the first signal (x (t)) sampled regularly the reconstruction method for reconstructing, and this method, From the value (y [n], y [nT] ) which vacated the interval regularly and was sampled, it has the measure of asking for a set of dignity (c, c, c) and a shift amount (t, t), and this first signal (x (t)) can be reconstructed using a set of this dignity and a shift amount. Dignity attachment is carried out by this dignity (c), and this reconstructed signal (x (t)) can be expressed as arrangement of the known function (gamma (t)) with which only this shift amount (t) was shifted. This sampling frequency is equal to the degree (rho) of innovation of this first signal (x (t)) at least.