基于现场可编程门阵列战术数据链中优先级轮询接入控制协议的研究

基于战术数据链在现代信息化战争中的应用背景，针对传统轮询协议存在的功能单一和不能满足实际应用中优先传输控制的问题，提出了一种具有优先级的轮询接入控制协议（PPACP）。该协议可以根据系统中站点的优先级别，设定优先级别最高的站点为网控站，其余站点为从属站。仿真结果表明，PPACP能够改善传统轮询协议存在不足，较好地适应战术数据链中对于最为紧急的作战报文的优先传输要求。利用现场可编程门阵列对PPACP进行设计，通过仿真测试，验证了该设计的正确性。

Research on Priority Polling Access Control Protocol in FPGA-based Tactical Data Link

Considering the background of the application of tactical data link in modern information war,a priority polling access control protocol (PPACP) is proposed for that the traditional polling protocol has single function and can not achieve the priority transmission control in actual application.The proposed protocol can set the top priority site as the network control station and the rest of the sites as slave stations based on the priority level of sites.The simulated results show that PPACP can improve the traditional polling protocol,which is better adapted to the requirements of the priority transmission of the most urgent operational message in the tactical data link.PPACP is designed based on field programmable gate array (FPGA),and the correctness of the design is verified by the simulation test.