Considering that traditional adaptive multi-user detectors haven t made full use of the
character of multi-access signals, a new algorithm of joint adaptive multi-user detection is put
forward. In this algorithm, the received signal is used as the reference signal, and the input of
adaptive filter changes into the sampled value of each user s spread spectrum serial. Analysis and
Simulation results show that this kind of detector has faster convergence rate and better anti near-far
impact ability, so it has good potential for practical applications.