相干带宽

rms时延扩展和相干带宽均与具体的信道结构有关，大致在数十微秒和数十千赫兹数量级。

The rms delay spread and the coherence bandwidth are in correlation with the network structure , and corresponding values are on the order of ten μ s and ten kilohertz .

一种利用窄波束成形提高短波信道相干带宽的方法

A Method of Increasing the Coherence Bandwidth on Shortwave Channel Using the Narrow Beam Forming

从该电子密度模式和电离层波传播特性出发确定多径分量，计算短波信道相干带宽。

The coherence bandwidth of shortwave channel is calculated by using the density profile and wave propagation features in ionosphere .

并就一些常用的表征电磁波传播过程的参数进行了介绍，如功率延迟分布图、时间色散参数、相干带宽和衰落多普勒频谱。

And several commonly used parameters which represent the electromagnetic wave propagation process are introduced , such as power delay profile , time dispersion parameters , coherence bandwidth and fading Doppler spectrum .

利用互相干函数，研究了脉冲波穿过大气湍流传播的二阶统计特性，包括相干时间和相干带宽等。

By using mutual coherence function , the characteristics of second-order statistics of the pulse-wave which transmits through the atmospheric turbulence have been studied , including the coherence time and coherence bandwidth .