CAJ | 학술논문

提出一种基于网络信号解扩的测距码测距的时变信道点跟踪算法,设计网络线性可调滤波器,可以校正和补偿系统特征衰减,通过自适应调整网络数据信号发送滤波器和接收滤波器的权系数,使均衡器的相频特性与信道频率特性的逆向量相等,构建基于网络的信号解扩测距码频点信号模型,设计构建11级线性移位寄存器,生成网络信号测距码,计算时变信道点信号的测距码功率谱密度,经网络信号解扩的测距码时变信道点跟踪相关处理,提高解扩处理增益.仿真结果表明,该算法能使误码率最低,窄带干扰环境下,由于利用扩频伪码的离散频谱特性,对等效载噪比的影响较少,在网络远程通信和网络通信防御等领域具有较好的应用价值.
제출일충기우망락신호해확적측거마측거적시변신도점근종산법,설계망락선성가조려파기,가이교정화보상계통특정쇠감,통과자괄응조정망락수거신호발송려파기화접수려파기적권계수,사균형기적상빈특성여신도빈솔특성적역향량상등,구건기우망락적신호해확측거마빈점신호모형,설계구건11급선성이위기존기,생성망락신호측거마,계산시변신도점신호적측거마공솔보밀도,경망락신호해확적측거마시변신도점근종상관처리,제고해확처리증익.방진결과표명,해산법능사오마솔최저,착대간우배경하,유우이용확빈위마적리산빈보특성,대등효재조비적영향교소,재망락원정통신화망락통신방어등영역구유교호적응용개치.
A ranging code ranging based on network signal enlargement of time-varying channel point tracking algorithm, linear tunable filter design network, can characteristics of attenuation correction and compensation system, through the adap-tive adjustment of network data signal filter and receive filter coefficient, make the frequency characteristic and phase fre-quency characteristics of the equalizer channel equals the amount of reverse, build based on the signal of network expansion ranging code frequency signal model, design and build 11 grade linear shift register, ranging code generation network signal, calculating time-varying channel ranging code point signal power spectral density, expansion of signal via the network solu-tions ranging code point tracking time-varying channel correlation processing, improve the algorithm to deal with gain. The simulation results show that the proposed algorithm can make the lowest bit error rate, narrow band interference environ-ment, due to using the discrete spectrum feature of spread spectrum pseudo code, the equivalent load ratio is less, the influ-ence of in telecommunication and network communication network defense and other fields has good application value.