CAJ | 학술논문

在大赫兹频段下,混合MIMO移动无线通信系统受到强干扰,导致通信系统信道难以配准.传统方法采用自干扰盲辨识刚发实现对大赫兹频段下的无线通信系统信道配准,信道均衡性能不好.提出一种基于自适应滤波功率谱估计的大赫兹频段下的无线通信系统信道配准算法,首先构建大赫兹频段下的无线通信系统,采用传播损失的概念来描述信号的通信传输过程中的能量损失,各阵元中的多径信号实现了同时刻同相位叠加,将多径波的强度、传播时间以及发射信号带宽等的进行耦合,得到功率方法电路系统的耦合约束条件,实现了多径信号的时间压缩又获得了聚焦增益,通过滤波器进行干扰抑制,得到的空间谱瞬时值,通过傅里叶变换求得功率谱密度函数,实现信道配准.仿真结果表明,该算法具有较好的信道配准和均衡性能,提高了功率谱空间增益,改善大赫兹频段下的无线通信质量.
재대혁자빈단하,혼합MIMO이동무선통신계통수도강간우,도치통신계통신도난이배준.전통방법채용자간우맹변식강발실현대대혁자빈단하적무선통신계통신도배준,신도균형성능불호.제출일충기우자괄응려파공솔보고계적대혁자빈단하적무선통신계통신도배준산법,수선구건대혁자빈단하적무선통신계통,채용전파손실적개념래묘술신호적통신전수과정중적능량손실,각진원중적다경신호실현료동시각동상위첩가,장다경파적강도、전파시간이급발사신호대관등적진행우합,득도공솔방법전로계통적우합약속조건,실현료다경신호적시간압축우획득료취초증익,통과려파기진행간우억제,득도적공간보순시치,통과부리협변환구득공솔보밀도함수,실현신도배준.방진결과표명,해산법구유교호적신도배준화균형성능,제고료공솔보공간증익,개선대혁자빈단하적무선통신질량.
In large Hz band, mixed MIMO mobile radio communication system under strong interference, resulting in a channel of the communication system to registration. The traditional method is using the self interference blind identifica-tion just sent to realize wireless communication system channel registration on Hz frequency band. The equilibrium perfor-mance of the channel is not good. An adaptive filter based on power spectrum estimation under large Hz band channel regis-tration algorithm firstly constructs the wireless communication system, wireless communication system Hz frequency band. We get the coupling constraints of power method of circuit system, realized the multipath signal time compression and won the focusing gain and interference suppression filter is obtained by the spatial spectrum, instantaneous value, through the Fourier transform to obtain the power spectral density function, realize channel registration. The simulation results show that the algorithm has good channel registration and equalization performance, improves the power spectral spatial gain, im-prove the quality of wireless communications under large Hz band.