低压电力线信道特性是设计低压电力线载波通信系统的基础。
The characteristics of power line channel are the foundation of designing the low voltage power line carrier communication system.
为克服低压电力线信道的频率选择性和时变性，系统采用正交多载波方式传输信息。
Orthogonal Multi-Carrier Modulation(OMCM) is adopted to overcome the frequency selectivity and time variation of low-voltage power line channel.
该文分析了低压电力线信道特性，利用信道慢时变的特点提出一种适合于电力线信道的判决反馈信道估计方法。
The low-voltage power line channel properties are analyzed in this paper and a decision feedback channel estimation method is proposed on condition of slow time-variant of channel.
文中根据我们的研究背景，提出了油井中低压电力线信道的简化模型，并对油井中电力线信道特性进行了仿真研究。
According to our special application, a simplified channel model of the power line under the oil well is brought, and the simulation is done about the channel characteristics.
文中分析比较了OFDM系统信道估计算法，并根据低压电力线信道的特点，选择了适合于电力线通信的信道估计方法。
In this paper, some algorithms for estimating channel in OFDM system are analyzed and compared, and the most appropriate one is selected according to power line channel's characteristics.
分析了低压电力线信道特性，针对信道慢时变特性及噪声复杂的特点，提出一种适用于低压电力线通信信道的直接决策估计算法。
This paper analyses channel properties of low-voltage power line channels. Aiming at the slow-variant and complex noise of channel, an estimation algorithm is put forward.
本文主要研究基于OFDM的低压电力线通信信道估计算法。
Channel estimation is researched for OFDM system in low-voltage power line communication in this paper.
低压电力线自动抄表系统主要由采集电能表信息的集中器、信道和主站等设备组成。
Automatic meter reading system on low voltage power line is composed of devices collecting the information of ammeter, channels and web servers.
OFDM技术以其抗干扰性强，传输速率高成为低压电力线高速通信的主流技术。 信道估计算法是OFDM系统接收端的关键技术之一。
OFDM technique has been the mainstream in low-voltage power line communication because of its good capability against interference and high transmission rate.
本文首先分析了低压电力线网络的特点及信道特性，对电力线信道的噪声和复衰减特性分别进行了测量及分析。
Through this paper, the low-voltage power line network and channel characteristics are researched. The noise and attenuation characteristics of power line channel are measured and analyzed.
文中分析了电力线信道的阻抗、噪声、衰减特性，据此给出了电力线信道模型，有助于深入理解低压电力线通信的特点。
This paper analyzes the impedance, noise and attenuation characteristics of PLC channel and introduces the PLC channel model which will help us understand PLC further.
针对目前基于低压电力线网络通信信道编码技术进行了探讨与研究，并在此基础上实现了电力线通信。
The paper explores and makes research on low-voltage power line network communication and channel coding techniques to achieve power line communication.
因此，该低压电力线扩谱通信系统能较好地抑制低压电力线通信信道的干扰，提高了通信的可靠性，可广泛应用于低压电力线通信领域。
Thus, the system can restrain the noise from low voltage power line and improve communication reliability. It may be widely applied to the communication field using low voltage power line.
因此，该低压电力线扩谱通信系统能较好地抑制低压电力线通信信道的干扰，提高了通信的可靠性，可广泛应用于低压电力线通信领域。
Thus, the system can restrain the noise from low voltage power line and improve communication reliability. It may be widely applied to the communication field using low voltage power line.
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