基于DSP Builder的巴克码检出设计及FPGA实现

A DSP Builder Based Barker Code Recognizer Design and Its FPGA Implementation

巴克码是最常用的帧同步码组。为了实现巴克码组的有效检出,利用DSP Builder设计了一种新的13位巴克码识别器电路。在Matlab/Simulink中对设计的电路进行了纯数字仿真,然后将设计的系统载入到FPGA芯片中,运用硬件在回路仿真技术进行半实物仿真。结果表明,基于DSP Builder设计的巴克码检出电路简单易行、稳定可靠,达到了预期的要求。

Barker code is the most commonly used frame synchronization.In order to identify the Barker code effectively,a new 13-bit Barker code recognizer was designed based on DSP Builder.Then,digital simulation for this designed circuit was made using Matlab/Simulink,and the designed system was loaded into FPGA chip.Semi-physical simulation was carried out by using Hardware-In-Loop（HIL） technology.The result showed that the designed circuit can be easily realized and is stable and reliable,which may satisfy the expected design requirements.