The digital correlators of the two structures are designed with the foundation series 3 . 1 xlinx design tools software . the classical structure emphasizes on the design of the adder , whose general form and 3 - 2 compressor structure are designed and analyzed . in this system , an express addition method is put forward , and its synthesis performance proves that it is superior to the two structures mentioned above 文中利用xilinx公司的foundationseries软件，详细设计了两种结构的数字相关器，经典结构的数字相关器以加法器的设计为重点，设计并仿真了一般结构和3 - 2压缩结构的加法器，针对本系统文中还提出了一种快速计算加法的设计思想，综合后比前两种结构在性能上有明显的提高；修正结构的数字相关器是基于模块化的思想设计实现的，并以一个码元的不同延时点为例，详细分析了相关器的性能。
In this paper , according to the theory of signal detection and estimation , the optimal receiver pattern of pn code signal is introduced and theoretically , the relation curve of the probability of the correct detection with the input s / n ratio under the different probabilities of false alarm is illuminated 根据信号的检测和估计理论，文中分析了数字相关器实现伪码信号接收的最佳模型，从理论上计算了在不同的虚警概率下，检测概率随输入信噪比的变化曲线，并分析了doppler效应对伪码相关接收的影响。
