This algorithm is very suitable for application to burst digital transmission. 该算法适用于要求载波相位估计时延很短的突发通信。
This "burst mode" of transmission allows the power-gobbling part of the mobile receiver to be turned off for90% of the time, thereby prolonging its battery life. 通过这种“连串模式”的传输,移动终端的耗电大户在90%的时间内事出于关闭状态,进而延长电池供电时间。
A New Algorithm for Simultaneous Carrier and Bit-Timing Recovery in Burst Mode PSK Transmission 突发模式PSK信号的联合载波位时钟恢复算法
Rapid carrier and clock recovery is a key technique in burst mode transmission. 快速载波和位时钟恢复是突发模式传送系统的一个关键因素。
Objective To investigate the characteristics of tone burst transmission of the middle ear implant ( MEI). 目的探讨人工中耳(middleearimplant,MEI)的纯音保真性。
Switching Consideration on Burst TDMA Transmission in Mobile Radio Communication System TDMA移动通信系统中突发传输的开关信号设计
CDMA technology is widely used in multiple access systems for burst mode transmission. 突发模式传输过程普遍地存在于各种多接入系统中,而CDMA技术在多接入系统中被广泛应用。
The "burst mode" transmission is widely applied in multiple access systems such as HFC network and wireless LAN. 特别的,有一类称之为突发模式的传输系统正得到越来越多的重视。突发模式的传输已经广泛的应用于各类多接入的上行系统中。
The PC card is based on PCI bus and combined with the characteristics of high speed, supporting burst transmission of PCI and flexibleness, variability of ISP technology perfectly, and it can generate arbitrary coded digital signal. 该PC卡基于PCI总线,完美地融合了PCI的快速、支持突发传输和ISP技术灵活、可变的特点,可产生任意编码数字信号。
The synchronization techniques for burst packet transmission mode OFDM systems is studied, including timing, frequency offset estimation and channel estimation. 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。
A Fast Carrier Frequency Estimation Algorithm for Burst Digital Transmission 一种适合突发数字通信的快速载波频偏估计算法
A new algorithm for fast simultaneous carrier and bit-timing recovery during the acquisition phase in burst mode PSK transmission is proposed. 本文提出了适用于突发模式PSK信号捕获阶段的一种快速联合载波位时钟恢复算法。
This paper investigated the timing and frequency offset estimation algorithm of OFDM burst transmission systems. 本文研究OFDM分组传输系统的符号同步与频偏估计算法。
Finally, the all-digital receiver techniques are studied, the FIR filter is designed with FPGA devices. Experimental results indicate that the filter is suitable for the burst mode transmission of the upstream channel of the HFC networks. 最后,对全数字接收机技术进行了讨论,给出了一种应用FPGA器件来设计FIR滤波器的方案,实验结果表明,此滤波器的性能能够很好地适应HFC网络上行信道对突发通信的要求。
Response property of tone burst transmission of partially implantable middle ear implant in vivo 人工中耳在体纯音传输特性的实验研究
Freeze-( TCP+) solve the problems that Freeze-TCP faces when handover occurs in heterogeneous networks, ( i.e.,) many packets are lost due to burst transmission or the resources in the new network can not be utilized efficiently. 本方案很好地解决了Freeze-TCP在异种网络切换时出现的由于数据突发导致的数据丢失或者不能及时有效利用网络带宽的问题。
The switching nodes can perform threshold checking, determine the burst transmission mode in the case of competition, so as to reduce the influence of deflection routing on network load, decrease the network blocking probability, and improve the network performance. 交换节点进行阈值检测,动态决定竞争时突发的传送方式,减少偏射路由对网络负荷的影响,进一步降低网络阻塞率,改善网络性能。
Study on OFDM Synchronization Based on Burst Packet Transmission 基于突发分组传输的OFDM同步研究
Based on the frame structure of 802.11a, this paper analyzes the performances of synchronization methods for OFDM in burst packet transmission. 基于802.11a突发数据帧结构,分析了突发分组传输中OFDM同步算法的性能;
The algorithm is very fast and has a large frequency estimation range, so it is fit for burst digital transmission especially. 本文提出的算法具有同步速度快、载波频偏估计范围大的优点,特别适合于突发性通信。
According to the improved method above, a real OFDM synchronization module is designed and realized based on burst packet transmission. This dissertation puts forward a general type of OFDM synchronization structure based on FPGA. 根据改进后的数据帧前导结构和同步估计算法,作者设计并实现了基于突发分组传输的OFDM同步模块,并完成OFDM中频收发系统的调试。
The comparison of the frequency estimation arithmetic in the burst-mode transmission 突发通信中的频偏估计算法比较
The transmitter does the work of a burst transmission, its encoding and framing are all implemented in the link control part, the base-band process part does the spreading, FIR filtering and up frequency conversion. 发射机实现一个突发传输过程,编码和组帧都在链路控制部分实现,基带处理部分做扩频、FIR滤波和上变频的工作。
Chapter II studies the general content of IEEE 802.11 protocol, focusing on the Physical Layer Specifications of IEEE 802.11 a, which tells how the packet-based OFDM frame is composed and formed in burst transmission mode. 第二章给出了IEEE802.11协议的概述,着重介绍了IEEE802.11a的物理层技术规范,即基于分组的突发传输模式的OFDM帧的组成。
The frequency offset estimation is one of the key synchronization technologies in coherent detection in burst mode transmission. Since the precision of frequency offset estimation will directly affect the performance of receivers, it is important to investigate the frequency offset scheme with improved accuracy. 频偏的估计在突发模式传输通信系统的相干检测中起着关键作用,估计的准确性直接影响到接收机的性能,对频偏的补偿校正有利于系统性能的提升。
Appling OFDM in burst mode transmission is inevitable selection of data communication including Internet. OFDM的突发模式传输是适应Internet等数据通信的必然选择。
Compared with single path routing protocols, multiple path routing protocols had more advantages: efficient use of bandwidth, resolving congestion and burst flow, reducing transmission delay, balancing network load and improving reliability of transmission. 多路径路由协议与单路径相比,在有效使用带宽、对付拥塞和突发流量、降低传输延迟、负载均衡以及增加传输可靠性方面具有明显的优势。
We contrast the data-aided synchronous algorithm with non data-aided synchronous algorithm, and decide to solve the synchronization problem of burst transmission system about IEEE 802.16-2004 with data-aided synchronous algorithm. 然后对比了非数据辅助式同步算法和数据辅助式同步算法的不同特点,决定采用数据辅助式同步算法来解决基于IEEE802.16-2004协议的突发传输系统的同步问题。
Therefore, it is more flexible for burst transmission systems to employ the joint estimators to balance the estimation performance and spectral efficiency. 因而,对于突发通信系统,联合估计算法在平衡估计精度和系统频谱效率上具有更好的灵活性。
The use of burst mode transmission is increasing in digital-communication systems. 突发模式的数据传输方式正越来越多的应用在数字通信系统中。