根据优化理论和L agrange神经网络基本原理,针对线性约束恒模算法(LCCM A),提出了一种恒模盲多用户检测算法,构建了L agrange罚函数,推导出迭代公式.通过仿真实验表明,该算法在误码率、信干比和信道跟踪能力方面均有所改善. According to the optimization theory and L agrange neural network basic principle, aiming at LCCM A, a constant-mode blind multi-user detection algorithm is proposed, L agrange penalty function is constructed and an iterative formula is deduced.The simulation results show , The algorithm has improved in bit error rate, signal to interference ratio and channel tracking capabilities.