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At the beginning of 2004, the standards for third generation (3G) cellular technology were embodied in 483 Technical Specifications published by the two Partnership Projects: 3GPP and 3GPP2.
At the beginning of 2004, the standards for third generation (3G) cellular technology were embodied in 483 Technical Specifications published by the two Partnership Projects: 3GPP and 3GPP2.
该论文针对光纤传感系统,深入研究随机信号的互相关函数和基于AR模型的功率谱估计,设计出具有事件发生检测功能的传感器信号处理算法。(The paper for the fiber optic sensor system, in-depth study of the cross-correlation function of random signal-based AR model spectrum estimation, designed with the incident detection sensor signal processing algorithms.)
正交编码方面的文章Coded Orthogonal Signaling(1993)(Coded Orthogonal Signaling(1993))
This paper presents a performance of the UWB system in a time hopping binary pulse position ultra-wideband modulation scheme (TH BPPM-UWB) in the presence of an AWGN channel.
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说明: 基于宏小区及微小区MIMO信道模型,比较了MIMO信道在两种传输环境中的空间相关特性,通过数值分 析方法得到了两类信道空间相关性随发送端、接收端天线阵列的分布而变化的特征曲线,并分析比较了信道参数, 即到达角的角度扩展,对空间相关性的影响。(The space correlation is analyzed in different propagation conditions including the MIMO macro-cell and micro-cell applications. The characteristics curves describing the space correlation versus the distance of antennas are obtained according to the numerical analysis. The effect of the spread of the angle of arrival on the space correlation is also investigated. )
说明: 阐述了RS-485总线规范,描述了影响RS-485总线通信速率和通信可靠性的三个因素,同时提出 了相应的解决方法并讨论了总线负载能力和传输距离之间的具体关系。 (Described the RS-485 bus specification, describes the impact of RS-485 bus communication speed and communication reliability of the three factors, while the corresponding solutions presented and discussed the bus load capacity and the specific relationship between the transmission distance.)
说明: 无线传输系统中nRF2401芯片数据丢失问题的研究(Wireless transmission systems nRF2401 chip problem of data loss)
说明: IEEE高级会员,刘太君教授.数字预失真关键技术,全面详细描述数字预失真仿真和实现的各方面内容,不可多得的资料。(IEEE senior member of Professor Liu Taijun. The key to digital pre-distortion technology, comprehensive and detailed description of various aspects of digital pre-distortion content of rare information.)
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介绍了用于雷达信号模拟器中的杂波仿真模型。并对单个分辨单元杂波回波信号进行建模和仿真。(Describes the radar signal simulator for clutter simulation model. And a single resolution cells clutter echo signal modeling and simulation.)
Dynamic Subchannel and Bit Allocation in multiuser mimo-ofdma systems.
This thesis presents simulation data on array operation in wideband communication systems. It is shown that array structures with closer inter-element spacing outperform structures with much larger inter-element spacing. It is also shown that circular structures outperform linear structures. This performance dierence between the classications of arrays is due largely to the circular array s ability to handle high levels of interference. Even though a diversity combining scheme (MRC) was used in the simulator, the arrays provided interference rejection capabilities due to the closely spaced antenna elements.
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FLL、PLL、DLL的设计与比较,在扩频通信系统中这三种环路就是关键。(FLL, PLL, DLL design and comparison, in the spread spectrum communication system in these three loops is the key.)