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- The influence of power line channel noises on the bit error ratio (BER) performance of the OFDM system is analyzed by simulation. 通过仿真,分析了低压电力线信道上各种噪声对OFDM系统误码率(BER)性能的影响。
- power line channel noise 电力线信道噪声
- Then the noises in the power line channel are analyzed, followed by a study of the OFDM system for its capability to resist the impulsive noise. 仿真结果表明，当信噪比较大，子载波数量足够多时，OFDM对较强的冲击干扰也能够较好地抑制，有效地提高了通信系统的性能。
- How to get the real time channel frequency response in power line OFDM communications by use of the characteristics of power line channel is discussed. 文中介绍了利用电力线信道的性质,在OFDM通信中实时获得信道传输特性函数的方法,并通过实验证实了该方法的有效性。
- A Smart Home System Based on Low-Voltage Power Line Channel 基于电力线信道的智能家居系统
- Abstract: The transmission characteristics are investigated that includes the impendence, attenuation and noise performance of the low-voltage power line carrier channel. 文章摘要: 本文对低压电力线载波通信信道特性进行了实验研究，重点测量和分析了低压电力线的阻抗特性、衰减特性和噪声特性。
- The transmission characteristics are investigated that includes the impendence, attenuation and noise performance of the low-voltage power line carrier channel. 本文对低压电力线载波通信信道特性进行了实验研究，重点测量和分析了低压电力线的阻抗特性、衰减特性和噪声特性。
- Synchronization Technology of Data Frame Based on Power Line Channels 基于电力系统线路信道的数据帧同步技术
- Compact, power line filters for home appliances. 简洁,家用电器用电源滤波器。
- Keep away from the high-tension power line. 勿靠近高压电线。
- Power line not connected or open circuited. 电源未联或开路。
- A 16,000-volt power line is very dangerous. 伏特是由它的发现者命名的。
- The impulse noise is the greatest barrier existed in power line communication, which can lead to high bit error rate (BER).It is necessary to consider adopting complicated channel coding technology. 摘要脉冲噪声是电力线通信中存在的最大障碍，造成信号的误码率(BER)高，必须考虑采用复杂的信道编码技术。
- PLC (power line channel) 电力线通信
- One is the robustness against channel noise;the other is the computational complexity of codebook search. 第一个是增加向量量化的抗杂讯能力，另一个则是减少码书搜寻的复杂度。
- Voltage provided to a ballast by a power line or power supply. 由电源或输电线输入到包括镇流器的电压。
- However, the most harmful noise for PLCC applications is that superimposed on a power line. 然而，最有害的噪声为PLCC应用是在输电线叠加的那。
- Impulse, one of the main disturbances in power line, is a type of bursty, high amplitude, and low probability noise. 脉冲噪声是电力线信道的主要干扰之一，它是突发性、高幅度和低概率的噪声。
- To avoid the variance of DCSK signal itself and decrease that caused by additive channel noise,a novel DCSK scheme with chaotic polyphase sequence(CPS) is presented. 经过对上述三种因素的分析 ;提出了一种新型的DCSK通信系统 ;该系统使用混沌多相序列 (CPS)避免DCSK信号本身带来的误差 ;同时采用相空间量子化的方法降低加性信道噪声的干扰 .
- They were undergrounding power lines. 他们正铺设地下电力线。
