1) flat fast fading
平坦快衰落
1.
In flat fast fading channels,when the number of antennas is large,the space-time trellis codes design criterion,which is based on maximizing the minimum squared Euclidean distance,is better than the traditional distance and product criteria.
在平坦快衰落条件下且天线数目较多时,基于最小平方欧式距离最大化的空时格码设计准则虽然优于经典的距离-积准则,但仍不完善。
2) flat fading
平坦衰落
1.
Several characteristics of mobile communications channel, such as Doppler spread, flat fading and frequency-selective fading are analyzed in detail.
在分析移动通信信道的多普勒扩展、平坦衰落和频率选择性衰落的基础上,将有限个等频率间隔的随机相位谐波信号叠加,设计了移动通信系统的Rician信道确知仿真模型;通过选择不同滤波器结构和参数将高斯白噪声转化为多种有色高斯随机过程,设计了移动通信系统的Rician信道随机仿真模型。
5) non-flat and slow fading
非平坦慢衰落
6) Rayleigh slow-flat fading
Rayleigh平坦慢衰落
1.
Its performance in AWGN and Rayleigh slow-flat fading channel was simulated and analyzed, and moreover, was compared with that of BPSK.
针对分形调制固有的多速率分集的特性,提出了在接收端三种不同的解调判决的方法,并将分形调制与BPSK调制在AWGN、Rayleigh平坦慢衰落信道下的性能进行了仿真、分析和比较,得出了"利用多速率分集特性可使分形调制在AWGN和Rayleigh平坦慢衰落信道中获得差错性能的提升"的结论,同时为分形调制系统的设计提供了有益的尝试。
补充资料：快堆(见快中子增殖堆)
快堆(见快中子增殖堆)
fast-breeder reactor
l快堆堆。(fast一breeder reaetor)见快中子增殖
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条