An improved LMS Algorithm is presented in this paper, based on which there is a semi-blind adaptive equalizer of time-variant channel for OFDM systems.
提出了一种改进的LMS算法，使基于该算法的半盲自适应信道均衡器适用于时变信道中OFDM系统。
The low-voltage power line channel properties are analyzed in this paper and a decision feedback channel estimation method is proposed on condition of slow time-variant of channel.
该文分析了低压电力线信道特性，利用信道慢时变的特点提出一种适合于电力线信道的判决反馈信道估计方法。
According to different channel models, CDMA systems can be divided into additive white gaussian noise (AWGN) channel and dispersive channel, time-variant and time-invariant channel.
CD MA系统按信道模型的不同分为高斯白噪声信道和衰落信道、时变和时不变信道。
Time variant multipath propagation in acoustic channel causes serious intersymbol interference (ISI), which makes high speed data transmission over acoustic channel very difficult.
但水声信道的时变多途效应造成接收数据严重的码间干扰（I S I），使得高速水声通讯的实现十分困难。
The channel model is a linear time variant system.
信道模型为一线性时变系统。
A method of measuring correlation between signal pulses for the investigation of random time-variant properties of underwater sound channel is presented in this paper.
本文提出一个研究海洋声传输信道随机时变特性的脉间相关法。
Underwater acoustic channel is a time-space-frequency variant channel, having a character for narrow bandwidth, high ambient noise level and strong interference of multipath.
而由此构成的水声信道是一个空间与频率响应随机快速变化的传输信道，存在窄带、高噪及强多途干扰。
The detection performance of matched filter will be degraded and the errors of estimated parameters of matched filter will be increased in a randomly space-time variant channel.
水声信道的随机时变特性使得匹配滤波器的检测性能下降，参量估计误差增大。
The detection performance of matched filter will be degraded and the errors of estimated parameters of matched filter will be increased in a randomly space-time variant channel.
水声信道的随机时变特性使得匹配滤波器的检测性能下降，参量估计误差增大。
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