Frequency domain block filtering GNSS receivers

Partial matched filtering is a candidate receiver type to handle large Doppler frequency uncertainty in joint timing and frequency acquisition as has been demonstrated during the last ten years. In addition, frequency domain matched filtering has been attained more interest recently since it allows fast acquisition and efficient implementation of generic filters in addition to a fact that it can serve several modulations. This paper joins partial matched and frequency domain filtering presenting a frequency domain partial matched filtering approach. Complexity analysis shows that this is an efficient scheme to implement joint time-frequency acquisition systems. Simulation results verify the performance showing that the receiver performs like the theory predicts, i.e., as well as time domain counterparts.