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kptxzh
- 通信行业中的扩频通信技术使用广泛，该文档主要介绍有关扩频通信的相关知识。-communication sectors of the use of spread-spectrum communication technology widely, the document introduces the spread spectrum communication related knowledge.
A Survey of Spectrum Sensing Algorithms
- A Survey of Spectrum Sensing Algorithms The spectrum sensing problem has gained new aspects with cognitive radio and opportunistic spectrum access concepts. It is one of the most challenging issues in cognitive radio systems. In this paper, a survey
IEEE 802.15.4g
- IEEE 802.15.4g ABSTRACT OF THE THESIS Implementing physical layer (PHY) of IEEE 802.15.4g standard with Direct Sequence Spread Spectrum (DSSS) using Offset Quadrature Phase Shift Keying (O-QPSK)
cooperative-spectrum-sensing
- 一篇很好的关于认知无线电协作频谱感知方面的英文资料，具有很高的参考价值。-A good collaboration on spectrum sensing in cognitive radio information in English, with a high reference value.
OFDM
- OFDM和多址技术的结合能够允许多个用户同时共享有限的无线频谱，从而获得较高的系统容量。-OFDM and multiple access technologies combined to allow multiple users to simultaneously share the limited wireless spectrum, and thus obtain a higher system capacity.
Ultra-Wideband 通信系统
- 为了提高通信系统的信息传输速率，人们提出了UWB通信系统，即Ultra-Wideband 通信系统。在UWB系统中，信号的带宽一般都在GHz的量级，这么宽的带宽造成了UWB系统和现有的通信系统频谱的重叠。为了降低对现有通信系统的影响，UWB信号的设计需要满足一定的频谱模板。如果一个信号的频谱基本满足频谱模板的规定（即在绝大部分频段内功率小于规定区间的上限），我们可以认定其为一个UWB信号。-In order to improve communication systems, informatio
Spectraldecomposition
- 瞬时谱估计，用于检测低频油气特性，有助于地层油气识别。-Instantaneous spectrum estimation for detecting low-frequency oil and gas properties, help to identify the formation of oil and gas.
ofdm
- 正交频分复用（OFDM，Orthogonal Frequency Division Multiplexing）是一种多载波数字调制技术，也可以被当作一种复用技术。具有频谱利用率高、抗多径干扰等特点，OFDM系统能够有效地抵抗无线信道带来的影响，例如信道的频率选择性衰落，脉冲噪声和共信道干扰的影响。本文主要介绍了OFDM原理的相关知识。-The Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Divisi
ASurveyofSpectrumSensingAlgorithmsfor2009
- 认知无线电频谱感知算法综述2009.对主流感知算法进行了介绍，引入了多维频谱感知算法。-The spectrum sensing problem has gained new aspects with cognitive radio and opportunistic spectrum access concepts. It is one of the most challenging issues in cognitive radio systems. In this paper,
PolicyandTechnologyofDynamicinKorea
- 文章讲述了现在韩国的频谱政策和动态频谱接入技术。过去韩国的频谱管理政策需要特权，并且只有一小部分频谱可以公用。随着无线技术的发展，现在，韩国政府，使用了机遇动态频谱接入的新型频谱策略，例如LBT技术用于REID，UWB和FACS等。MIC还考虑如何在DTV过渡完成后，重新分配频谱。新型的无线电技术如认知无线电和SDR将在UHF边带中应用新的服务。MIC试图用一用有效地方式开放频谱并接受新技术用于频谱策略中。-In this paper, we introduce spectrum policie
mypaper4
- To fully utilize the character of the bioradar echo signal, autocorrelation analysis, spectral estimation methods and time-frequency analysis are presented in this paper. These methods are employed to deal with no one, single people and multi-people
A-review-on-spectrum-sensing-for-CR
- 概括了各种认知无线电频谱检测方法的原理，也论述了带有多接收机的协作频谱感应方法和一些实际问题。-Outlined the principles of cognitive radio spectrum detection method, also discussed with multiple receiver cooperative spectrum sensing method and some of the practical problems.
spread-spectrum
- Spread-spectrum telecommunications This is a technique in which a telecommunication signal is transmitted
Spectrum-Analysis
- 海洋表面有各种各样的波浪，作为一种自然现象，其模拟已成为计算机图形学中最具挑战性的问题之一。风浪是最主要的一种波浪，其模拟在工程及影视中的应用已日益引起人们的关注。本文从海洋学已有的统计观测结果出发，利用海浪频谱与方向谱的相关公式，对开阔海面深水域的风成波浪进行了模拟。实践证明，该方法对波浪的模拟在实时性与真实感方面均取得了不错的效果。-There are a variety of ocean surface waves, as a natural phenomenon, which has b
wideband-spectrum-sensing
- 一篇关于认知无线电网络很好的宽带频谱感知技术的英文文章，分享大家一起去学习学习-wideband spectrum sensing
Power-Spectrum-Estimation-using-Welch-Method-for-
- Power Spectrum Estimation using Welch Method for various
Spectrum-2010
- 此文件为PEER美国太平洋地震工程中心的地震周期加速度反应谱编译工具，用excel编译地震波的反应谱，然后导入PEER，可得到自己想要的地震波。-This document for the PEER Pacific earthquake engineering center of the seismic cycle acceleration response spectrum compilation tool, using Excel to compile the seismic respons
review-of-spectrum
- spectrum hole detection techniques
contract-spectrum
- 利用博弈论中的拍卖模型建模，5G 通信中的频谱资源利用问题。竞价机制银土其中-auction theory using in 5G wireless communication about the spectrum allocations.
Spectrum-Sensing-methods-for-Cognitive-Radio-
- spectrum sensing Spectrum Sensing methods for Cognitive Radio