PN Code Acquisition Based on the Locally Optimum Detector in Multiplicative Noise Channels
乘性噪声环境下基于局部最佳检测器的伪码捕获方法

The spread-spectrum system usually works in the multipath environment, along with the additive noise there always be some multiplicative noise. In order to solve the pseudonoise (PN) code acquisition in multiplicative noise channel, a new detector is proposed in this paper. Modeling the acquisition problem as a hypothesis testing problem, a detector is derived for multiplicative noise, based on the locally optimum detection technique. Numerical results show that the proposed detector can offer substantial performance improvement over the conventional schemes in multiplicative noise channels.