本文主要对CD MA2000 - 1x前向信道传输技术进行了研究。
This thesis has mainly researched on the CDMA2000-1X forward channel transmission technology.
媒体接入控制技术的核心问题是如何协调多个用户共用一个信道实现高效可靠传输，即多址接入问题。
The medium access control Technology focuses on multi-address access, that is, how to coordinate users sharing a common channel to achieve efficient and reliable transmission.
本论文重点研究了分块传输移动通信系统中的内接收机设计，包括信道参数估计和同步技术。
This dissertation mainly focuses on the inner receiver techniques for block transmission mobile communication systems, such as channel parameters estimation and synchronization techniques.
正交频分复用(OFDM)是一种新型调制技术，特别适合在多径传播的无线移动信道中高速传输数据。
OFDM (Orthogonal Frequency Division Multiplexing) is a new modulation technology, it is suitable to high-data-rate transmission in the wireless transfer channel with multi-path transmission.
本文主要研究适用于突发OFDM传输系统的同步技术，包括定时、频偏估计和信道估计。
The synchronization techniques for burst packet transmission mode OFDM systems is studied, including timing, frequency offset estimation and channel estimation.
目前，正交频分复用(OFDM)技术因能在无线时变信道中进行高速数据传输而受到广泛的关注。
At present, more comprehensive attention has been taken to OFDM technology in data transmitting systems with wireless time-varying channel.
单频组网是水情自动测报系统中采用特高频信道传输的关键技术。
The single frequency network (SFN) is the key technology in very high frequency (VHF) channel transmission of automatic hydrological forecast systems.
文章在分析地面传输信道特性的基础上，介绍了地面广播数字电视的DVB - T标准，探讨了其核心的正交编码频分多路复用COFDM技术、前端发射设备的系统结构及其优缺点。
Base on the analysis of terrestrial transfer channel, the paper introduces the DVB-T standard, and discuss the core COFDM technology as well as front-end transmit system structure.
数字水印技术把多媒体数据作为一种传输用户标识或内容完整性信息的通信信道来考虑。
Watermarking techniques consider multimedia data as a communication channel transmitting owner identification or content integrity information.
正交频分复用（OFDM）技术是近几年兴起的一种在无线信道上实现高速数据传输的新技术。
Orthogonal Frequency Division Multiplexing (OFDM)technology in recent years is the rise of a wireless channel to achieve high-speed data transfer of new technologies.
与传统的单载波调制方式相比，OFDM技术可以有效地抵抗信道多径干扰，提高系统的传输速率。
Compared with the traditional scheme of single-carrier modulation, OFDM technology has more effective anti-jamming ability and achieves higher transmission rate.
OFDM是一种无线传播环境下的高速传输技术，适合在多径传播和多普勒频移的无线信道中传输高速数据。
OFDM is a high transmission technology in the wireless propagation environment. It is fitted to transmit high-speed data in the wireless channel which has multi-path delay and Doppler frequency shift.
最大似然序列检测技术被广泛应用于数字通信系统中来估计通过有噪声的符号间干扰（ISI）信道传输的数字数据序列。
Maximum likelihood sequence detection (MLSE) is broadly use in the digital communication system to estimate the transferred data through the ISI channel with noise.
MIMO技术通过采用多个发射天线和接收天线可以显著提高无线通信系统的信道容量，增强数据传输的可靠性。
MIMO systems can increase the channel capacity and enhance the transmission reliability by employing multiple antennas at the transmitter and receiver.
在块传输系统中，采用预编码-后均衡相结合的联合均衡技术能够有效克服信道的色散效应。
Joint precoding and post-equalization is effective for combating the dispersive effects of channels in block transmission systems.
由于电力线是用来传输电能的，而不是专门通信的，所以作为通信信道会带来很多技术问题。
Power line is designed to transmit electrical energy and is not specially used for communication, so using it as communication channel brings many technical problems.
现代数字通信中往往采用数字复接技术扩大信息的传输容量并提高信道利用率。
The digital multiple connection technique is applied to expand the capacity of the information transmission and raise the efficiency of the channel.
光突发交换技术相对于光波长交换技术而言，具有信道资源利用率高、更适于传输分组业务等优点。
The optical burst switching technology has the advantage of higher efficiency of channel usage and more suitable for packet transfer comparing with the optical wavelength switching.
传输部分由中国移动提供的通信信道借助GPRS无线分组交换技术，实现数据透明转发。
Transmits partially the communications channel which provides by China mobile with the aid of the GPRS wireless grouping exchange technology, realizes the data transparently to retransmit.
信道编码是扩频通信的关键技术之一，是解决信号在信道中无差错传输的技术。
Channel Encoding technology is one of the key technology in SSC. It aims to realize the non-error transmission of the signal.
联合信源信道编码技术在变信道下的传输速率可接近理论极限，因此在未来多媒体通信中有很好的应用前景。
Joint source-channel coding (JSCC), which can approach the theoretical limit of transmission rates with varying channels, has a splendid application future in multimedia services.
为了提高传输质量，结合JPEG2000信源和FEC信道编码的统计特性，提出了一种基于非均匀错误保护的最优码率分配技术。
Based on unequal error protection with jointing JPEG2000 source and FEC channel coding, a novel optimal rate allocation technology is proposed.
同时探讨了CAN总线传输信息的速率、信道容量和节点容量等技术问题。
And we discussed the CAN-BUS key technical such as the transmission speed, channel capacity, node capacity, and so on.
水下视频图像压缩一直是有限带宽水声信道实时传输海量视频数据的关键技术之一。
Underwater video compression is one of the key technologies for transmitting massive amount of real-time video data via underwater acoustic channels with limited bandwidth.
技术可以和OFDM技术结合以便在高的频率选择性衰落信道下提供高数据率的传输。
V-BLAST (Vertical Bell Laboratories Layerd Space-Time) can be combined with OFDM to achieve high data rate transmission in frequency selective fading channels .
介绍了美国数字有线电视传输标准以及一种采用DSP技术进行软件信道解码的方法，给出了所用关键技术和实现算法。
American digital video transmission standard for cable Television was introduced and a software method was illuminated to implement channel decoding by DSP technology.
数字技术的应用不但使计算机数据可以在原来的电视信道中传输，而且也促进了数字视音频数据在计算机网络上的传输。
Date technology application is not only making computer date transmitting in TV channel, but also promoting video and audio date transmitting over Internet.
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.
给出了一种新的信道加密的思想——将混沌加密技术应用于网络传输通信。基于此思想实现了一个密钥文本的P 2 P网络传输系统。
Carrying out a new channel encryption method based on chaotic encryption, and employing this method to develop a key text P2P transmission system.
给出了一种新的信道加密的思想——将混沌加密技术应用于网络传输通信。基于此思想实现了一个密钥文本的P 2 P网络传输系统。
Carrying out a new channel encryption method based on chaotic encryption, and employing this method to develop a key text P2P transmission system.
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