本文提出了一个多信道的资源分配方案,以便有效地利用系统资源。
The dissertation proposes a new multi-channel scheme and corresponding resource allocation to efficiently use the bandwidth.
结合现有多种抗冲突方法的优点,提出一种针对多信道的、阅读器密集分布的RFID系统的基于IRCM的抗冲突协议。
Combining the advantages of various anti-collision methods, in this paper it proposes an IRCM based anti-collision protocol against the RFID system with multi-channels and dense reader environment.
演示达到了多项目标:与其他CDL无线电设备实现互操作、用多波束或多信道跟踪、数字波束生成更强、更清楚的信号、目标在邻近阵列板之间传递。
Digital beam-combining for stronger, clearer signals -- Target hand-off between adjacent array panels。
SR- 5124提供卓越的动态搜索范围,能同时记录多信道信息,在记录的同时具有重放功能,并能与现有信号分析工具兼容。
The SR-5124 offers exceptional dynamic range, simultaneous recording of multiple channels, playback while recording, and compatibility with existing signal analysis tools.
因为K波段比x波段高2.5倍,由干扰产生的多信道信号频率也要高2.5倍,这极大改善了对慢速和快速移动目标的探测。
Since K-Band frequency is 2.5 times higher than X-Band, the multipath signal generated by an intruder is also 2.5 times higher, vastly improving detection of slow and fast-moving targets.
但是这种正交性却被多径衰落信道破坏,产生了多码道干扰,严重影响了系统高速传输数据的性能。
The orthogonality, however, is impaired by multipath fading channels, thus causing multicode interference (MCI) and deteriorating the system's performance at high data transmission rates.
众所周知,水下声信道是相干多途信道,信号在信道中的多径传播使得接收信号序列复杂化,因而极大地增加了信号处理的难度。
It's well known that underwater acoustic channel is a coherent multi-path channel, which brings difficulties in signal processing because of the complexity of the received signal sequence.
双音多频是一种在话音信道用音调来表示数字的方法,它可以用来在模拟话音信道传输信令,因此在通信中有广泛的应用。
Provide is a voice channel and tone to represent Numbers method, which can be used to transmit analog voice, so in communication has been widely used.
论述了一类通用的经过通信信道进行协调的多移动机器人编队控制系统。
A class of general multiple mobile robots formation control system of achieving coordination through communication channel was described.
提出的辅助判决均衡器在用于滤波多音调制系统时,可克服判决反馈均衡器在多径信道下的地板效应。
For the FMT system, a decision-aided equalizer could overcome the floor effect of the decision feedback equalizer which is caused by the multi-path channel.
其次,提出了电力线噪声信道和多径信道的神经网络优化建模方法。
Secondly, power line noise channel and multi-path channel optimization modeling techniques based on artificial neural network are proposed.
第二章分析了无线信道的多径效应和小尺度衰落效应。
The second chapter of this paper analyzes the multipath effects and fading effects of wireless channel.
仿真结果验证了本文方法具有良好的检测性能,可以在克服信道衰落的同时抑制多址干扰。
Simulation results demonstrate that the proposed method offers higher detecting performance and is capable of combating both channel fading and multiple-access interference.
但是电力线信道上存在的各种噪声、衰减和多径传播等问题,这些都大大提高了通信的难度。
But the noises, the attenuation and the multipath propagation inhering in the powerline make it very difficult to realize such kind of communication system.
超宽带信号经多径信道传播会产生严重的时间弥散。
In multipath environments, ultra-wide band signals suffer from severe time dispretion.
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.
论文研究了基于多径时延跟踪的信道估计方法,并提出了一种低复杂度的多径时延跟踪方法。
We investigate the channel estimation algorithms based on tracking multipath time delay, a low complexity multipath time delay estimation method is proposed.
在多径衰落信道下,这些参数是很难获得的。
These parameters are difficult to obtain in multipath fading channels.
基于广播信道及多址接入信道的概念,提出了一种新的半双工中继协议,并对该协议下的资源分配问题进行了研究。
Based on the concepts of broadcast channel and multiple access channel, a novel half-duplex relay strategy was proposed, and optimal resource allocation under this strategy was investigated.
UWB主要应用于密集多径室内信道中,多径干扰是系统的主要干扰来源之一。
Since UWB system generally operates in dense multipath indoor channel, multipath interference becomes one of the main interferences affecting system performance.
在此基础上提出了一种新的无线信道模型;结合分形插值方法,对多径衰落信号的重构进行了研究。
Then a novel channel model is proposed and fractal interpolation is applied to reconstruct the signals.
本文主要致力于研究新的信道估计算法,明确提出了将多径信道的时延估计和幅度估计分开的信道估计方案。
The subject of this paper mainly focuses on the research of new algorithms and proposes the channel estimation principle explicitly: separate the estimation of multi-path amplitude and delay.
本文将分形理论引入多径衰落信道的描述,提出了一种利用分形滤波进行最小均方误差意义下信道参数估计的方法。
The fractal theory was applied to describe multipath fading channels, and a novel channel estimation scheme using fractal filter in the sense of minimum mean square error (MMSE) was presented.
多无线电多信道分配问题是多无线电多信道技术的核心问题。
Multi-Radio Multi-Channel (MRMC) allocation problem is the key is- sue in MRMC techniques.
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.
测试结果表明论文提出的用于多链路逻辑信道环境测量的自适应抽样流测量系统的设计达到了预期的功能和性能要求。
As shown by the test results, the design of the network flow measurement system for the high-speed multi-link logical channel has achieved the expected targets on its function and performance.
本文给出了有反馈多址信道容量区域的一个极限表示。
This paper gives a limit representation of the capacity region of multi-access channels with feedback.
对多信道模型的输出应用线性预测,证明了预测误差只包含多信道模型冲激响应在第一个时隙的参数,并给出最佳线性预测器的长度。
A linear prediction approach is applied to the output of this SIMO model and we prove that the prediction error contains the parameters of the first time slot of the model impulse response.
水声信道多径参数的实时估计对于提高接收机性能有重要意义。
It is important to enhance receiver performance by real time estimating the multipath parameters of underwater acoustic channels.
在宽带无线数字通信系统中,影响信息高速传输的最主要的一类干扰是由信道的多径效应所引起的频率选择性衰落。
The bandwidth efficiency and ability to combat the effects of frequency selective channels are critical issues in the design of wideband wireless digital communications system.
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