delay spread

The smart antenna is able to improve SINR significantly and reduce time delay spread and multipath fading at the same time.

自适应阵列天线在近年来被称为智能天线，它能够显著提高系统的信号干扰噪声比（SINR），能够减小时延扩展及多径衰落，实现空分多址。

Analyzing and Modeling for the Digital Signal Multipath Propagation Time Delay Spread Suffered from Huge Buildings in a City in Mobile Communication System The value of loss and time-delay is given by simulation calculating in different conditions.

高层建筑对脉冲多径时延展宽影响分析与建模根据仿真计算得到了不同紫外光通信条件下的损耗、时延和脉冲展宽。

The platform of FPGA embedded signal processing based on the idea of software radio is set up to achieve the architecture of system on programmable chip ( SOPC). The time delay estimation model of sound wave spread spectrum system is established with the optimization of algorithm.

在此基础上，结合软件无线电思想，利用FPGA嵌入式数字信号处理平台实现可编程片上系统；建立声波扩频测距时延估计模型，研究数字信号处理优化算法，给出实验结果，分析和讨论测量精度问题。

The Maximum Likelihood Sequence Estimation ( MLSE) using the Viterbi Algorithm ( VA) is commonly recommended for the equalization, which can only accommodate the channels with limited time delay spread.

常用的最大似然序列估计（MLSE）均衡器采用维特比算法（VA），它只能用于具有较小时延扩展的信道。

Referring to the geometrically based single bounce ( GBSB) model, a new geo-propagation model is proposed to predict the delay spread as well as the direction-of-arrival of multipath components in channels for high altitude platform station ( HAPS) communications.

本文在单反射几何模型的基础上，提出了用于预测平流层通信信道功率延时扩展和空间能量分布的信道传播模型。

The paper analyzes the features of shortwave channel, and the method of Matlab simulation is adopted, simulates and discusses the Rayleigh fading, time delay spread and inter-symbol interference caused by multipath effect.

本文分析了短波信道的特点，采用Matlab仿真的方法，对由于多径效应而产生的瑞利衰落，时延扩展以及码间干扰等问题进行了仿真和深入的探讨。

This system can implement 4.86 Mbps data rate and tolerate 2.5 μ s time delay spread.

该系统在2MHz的频率带宽内，数据通信速率最高可达4.86Mbps，可以容忍的时延扩展为2.5μs。

Wireless signal propagated in the wireless channel will be affected by multi-path time delay spread, Doppler shift, angular spread and other characteristics of multi-path fading, leading to the received signal distortion in amplitude, phase and frequency.

无线信号在无线信道中传播，容易受到多径时延扩展、多普勒频移、角度扩展等多径衰落特性影响，导致接收信号在幅度、相位和频率上失真。

Its channel capacity expression in the case of time delay spread is presented. And the emulation to compare MIMO system to MIMO+ OFDM system's capacity in interfered case is carried on.

最后对MIMO+OFDM技术进行了研究，给出了MIMO+OFDM技术在时延扩展情况下的信道容量表达式，并对MIMO系统和MIMO+OFDM系统在受干扰情况下的容量进行了仿真比较。

In shallow water, conventional sonar performance deteriorates due to time delay spread and Doppler shift of acoustic wave propagation in waveguide environment.

在浅海波导环境中，因声波传播存在严重的时延扩展和多普勒频偏，常规声纳的性能下降，需要研究和发展新的水声信号处理方法。

Equalization Algorithms for Continuous Phase Modulation on Long Delay Spread Channels

连续相位调制信号在长时延扩展信道下的均衡算法

In this paper, The modem spatial channel models built on the time delay spread and angle spread and antenna geometries is developed.

本文提出了基于时延和角度扩散及天线结构的时空间信道信道模型。

A good performance if the channel delay spread is short.

模拟结果显示在延迟扩展较短时,可以得到较佳的系统效能.