An implementation method of partial correlation matched filter in the CDMA receiver

摘要

Comparing to the acquisition methods based on periodic correlation of pseudo-random-noise code, the partial correlation acquisition have the advantages of stronger adaptability of Doppler frequency, faster search speed and more extensive applications. Matched filter is a kind of linear filter which can maximize the signal-noise-ratio output and has been widely used in optimum receiver of digital communication systems. The acquisition method based on partial correlation matched filter has been presented in this thesis. Furthermore, a detailed description of the design and optimization issues using a field programmable gate array (FPGA) are presented, which would be valuable for the engineering development of high performance receiver. The method can meet the needs of fast synchronization, high sensitivity and high dynamic.