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提出一种蜂窝型(非正方形)16APK调制算法和新的基于蜂窝型判决区域的双模式盲均衡算法(DHDRA).对典型的浅海水声信道进行的仿真结果表明,基于蜂窝型16APK的调制算法比基于正方形16QAM的常数模盲均衡算法(CMA)更具抗干扰能力,收敛速度更快;基于蜂窝型判决区域的双模式盲均衡算法在收敛速度和稳态误差方面均优于基于正方形环判决区域的双模式算法,对于提高水下通信质量,降低码间干扰具有一定的研究价值.
A cellular (non-square) 16APK modulation algorithm and a new dual-mode blind equalization algorithm (DHDRA) based on a cellular decision region are proposed.The simulation results of a typical shallow sea acoustic channel show that the modulation algorithm based on the cellular 16APK Which is more anti-jamming than CMA based on square 16QAM and has faster convergence rate. The dual-mode blind equalization algorithm based on cellular decision region is better than the one based on square ring in convergence rate and steady-state error The dual mode algorithm of decision region has certain research value for improving underwater communication quality and reducing intersymbol interference.