amplitude fading
英 [ˈæmplɪtjuːd ˈfeɪdɪŋ]
美 [ˈæmplɪtuːd ˈfeɪdɪŋ]
网络 振幅衰落; 幅度衰落; 振幅衰减; 幅度衰减[落]
双语例句
- The performance of the spectral efficiency for constant-power adaptive M-ary quadrature amplitude modulation schemes over correlated Nakagami fading channel under maximum ratio combining diversity reception is investigated.
研究相关Nakagami衰落信道上恒定发射功率自适应M进制正交幅度调制的频谱效率。 - It gives an adaptive quadrature amplitude modulation ( QAM) method which could be more efficiently used in the multi-path fading channels encountered in mobile radio.
提出一种自适应矩形多幅度调制方法，能够更有效应用于无线移动通信中的多径衰落信道。 - The wireless propagation environment is described first: analyzing the small-scaled fading, including amplitude fading, multi-path time delay and Doppler spectrum spread.
在本论文中，首先对移动传播环境作了描述，特别是对小尺度多径传播造成的幅度衰落，多径时延和多普勒频移进行了分析； - Weighting function by amplitude value of channel estimation in frequency domain is used in pilot based phase tracking, which is quite suitable for UWB frequency selective fading channel, having a great performance enhancement compared to traditional non-weighting pilot based phase tracking method.
相位跟踪提出利用信道估计频域响应幅度值对导频加权的方法，适用于UWB某些频点深衰落的信道特性，在性能上有很大的改善。 - By simulating amplitude and phase fluctuations induced by atmospheric turbulence, signal fading for coupling space light into single mode fiber is studied in wavefront tip-tilt corrected system. Tracking algorithm of CCD image is studied.
通过模拟湍流波前的振幅起伏及相位起伏，研究了采用CCD探测器的湍流波前倾斜校正系统的空间光到单模光纤耦合功率的衰落特性，对CCD图像的跟踪算法进行了研究。 - In the mobile communication system, the signal amplitude fading and phase distortion will occur when the actual signal transmitted by the radio channel.
在移动通信系统，实际信号经无线信道传输后都会发生信号幅度衰落和相位畸变。 - In the simulation experiment, the channel uses the Clarke-Jack model to generate the fuction which simulates the amplitude fading of high-speed mobile channel, and the multipath fading channel is also taken into consideration.
在仿真实验中，信道部分利用克拉克模型来产生函数模拟高速信道的幅度衰落，并且考虑存在多条传输路径的衰落信道。