Parellel DMF-RAKE Receiver Based on LEO

In the scenario of low elevation of the LEO (Low Earth Orbit) communication, it is usually the multipath signals instead of the LOS (Line of Sight) signals that enter the receiver. Then the high gain spread-spectrum is often introduced to mitigate the muitipath fading and the interferences. So we propose a RAKE receiver based on parrelled DMF (Digital Matched Filter) in view of the acquisition of the corresponding long PN (pseudo noise) codes. It can assure getting the autocorrelation over the PN code period and achieving the MRC (Maximum Ratio Combination) results of the multipath signals, so as to anti-jams and restrain the multipath fading effectively. The simulation results verify the validity of this RAKE structure.