Performance of Rake Receiver for TH-PPM-UWB in Multipath Channel

When UWB signal transfer in the channel.It will take along with the serious multipath to the reception of UWB.It′s a better way to low of multipath disturb with Rake receiver in ultra wide band radio system.Based on the Intel model of IEEE802.15.SG3a group.Using of Time-Hopping Pulse Position Modulation(TH-PPM).The paper analyses A-Rake,P-Rake and S-Rake receiver modle under the Intel model.The results indicate that the A-Rake is the best of receiver and the S-Rake receiver is better than the P-Rake receiver but with the increasing of figner the difference of performance between S-Rake and P-Rake will be reduced.