基于共轭梯度算法的码时延估计方法

A Novel Method of Code Timing-Delay Estimation Based on Conjugate Gradient Algorithm

研究了在多址干扰存在并且不考虑功率控制情况下进行用户码时延估计的问题 .利用MUSIC算法可以获得具有抗强多址干扰的时延估计算法 ,但计算量大 .提出了一种基于共轭梯度算法 ,通过对接收到新样本进行迭代计算 ,可有效地减少计算量 .

A novel method of code timing_delay estimation without power control in a CDMA system with multiple access interference was introduced.A good code timing_delay estimation algorithm can be derived by using the multiple signal classification (MUSIC) algorithm.However,we presented a novel method basd on conjugate gradient structure with less calculations than MUSIC.By calculating the newly received data iteratively the method can dramatically reduce the calculation.