DESIGN OF DIGITAL IMPACTING FILTER IN CP-EBPSK WITH RANDOM-POLAR COMMUNICATION SYSTEM  

作　　者：Jin Yi Wu Lenan Chen Yifang Yu Jing 

机构地区：[1]School of Information Science and Engineering,Southeast University,Nanjing 210096,China

出　　处：《Journal of Electronics(China)》2012年第3期328-333,共6页电子科学学刊（英文版）

基　　金：Supported by the National Natural Science Foundation of China (No. 60872075)

摘　　要：To solve the difficulty of designing digital impacting filter in the receiver of random-polar modulated Extended Binary Phase Shift Keying with Continuous Phase (CP-EBPSK), a design method based on Quantum-behaved Particle Swarm Optimization (QPSO) algorithm is proposed. Firstly, QPSO is introduced elaborately, and the basic flow of QPSO is also given. Then, the demodulation principle of digital impacting filter in the communication system of CP-EBPSK with random-polar is demonstrated, and QPSO is utilized to design the digital impacting filter, which also takes the effect of finite word length into consideration when implemented by hardware. Finally, the proposed method is simulated. Simulation results show that the digital impacting filter designed by new method can derive satisfied demodulation performance.To solve the difficulty of designing digital impacting filter in the receiver of random-polar modulated Extended Binary Phase Shift Keying with Continuous Phase （CP-EBPSK）, a design method based on Quantum-behaved Particle Swarm Optimization （QPSO） algorithm is proposed. Firstly, QPSO is introduced elaborately, and the basic flow of QPSO is Mso given. Then, the de- modulation principle of digital impacting filter in the communication system of CP-EBPSK with random-polar is demonstrated, and QPSO is utilized to design the digital impacting filter, which also takes the effect of finite word length into consideration when implemented by hardware. Finally, the proposed method is simulated. Simulation results show that the digital impacting filter designed by new method can derive satisfied demodulation performance.

关 键 词：Extended Binary Phase Shift Keying with Continuous Phase (CP-EBPSK) Digital impacting filter Quantum-behaved Particle Swarm Optimization algorithm (QPSO) DEMODULATION Effect of finite word length 

分 类 号：TN911.2[电子电信—通信与信息系统]