CAJ | 학술논문

为了提高通信系统的能效，提出了一种高效正交载波调制方法。在该方法中，基于能效优先原则，采用频谱混叠、时域正交的椭圆球面波函数（prolate spheroidal wave function，PSWF）设计基带脉冲波形，通过正交的同频载波实现载波调制。理论分析及数值仿真了该调制方法的差错性能、频域能量集中度。仿真结果表明，带内能量聚集度可达99．8％，该特性可大幅减小对相邻用户的电磁干扰，并有利于提高信号的抗干扰性能。
위료제고통신계통적능효，제출료일충고효정교재파조제방법。재해방법중，기우능효우선원칙，채용빈보혼첩、시역정교적타원구면파함수（prolate spheroidal wave function，PSWF）설계기대맥충파형，통과정교적동빈재파실현재파조제。이론분석급수치방진료해조제방법적차착성능、빈역능량집중도。방진결과표명，대내능량취집도가체99．8％，해특성가대폭감소대상린용호적전자간우，병유리우제고신호적항간우성능。
To improve the energy efficiency of the communication system,a high efficiency orthogonal carri-er modulation method is proposed.Energy efficiency is taken into account firstly in this method.Basedband pulse is designed based on prolate spheroidal wave functions (PSWF),which is orthogonal in the time domain and overlapped in the frequency domain,then modulated by the orthogonal carrier.The error rate and energy concentration degree are analyzed by theoretical study and simulation.The simulation result shows that the modulated signal energy concentration degree can be up to 99.8%,which is important to improve energy effi-ciency and reduce electromagnetic interference on other users.