In this thesis, a kind of 2-dimention signal acquisition method is presented which combines parallel pn code phase and carrier frequency acquisition, as a result the acquisition time is shortened greatly . besides, according to the fact that the detection of spread spectrum signals is always the key point in the receiving system 在擴頻信號的捕獲過程中要求有較小的時延和較高的概率,本文介紹一種二維信號的捕獲方法,這種方法結合偽pn碼和載波頻率的獲取,捕獲時延將大幅度降低,實際上,擴頻信號的檢測是接收系統(tǒng)的關鍵。