频谱感知是实现认知无线电技术的前提和基础。
Spectrum sensing is one of the prerequisite and basis of realize cognitive radio technology.
频谱感知技术已经成为认知无线电技术的基础和前提。
Spectrum sensing technology has become the basis and premise of Cognitive Radio technology.
认知无线电技术因其提高频谱利用率的能力而广受关注。
Cognitive radio is interested because this technique can increase spectrum efficiency.
首先介绍了正交频分复用的基本原理和认知无线电技术。
Initially, fundamentals of OFDM and technologies of cognitive radio are introduced in this paper.
协作感知技术作为认知无线电技术的关键技术成为近些年研究的热点。
As a key technique of Cognitive Radio (CR), cooperative sensing has become a hotspot worthy of research.
为了使uwb对变化的干扰环境具有自适应调节能力，引入了认知无线电技术。
In order to make the UWB has the adaptive adjustment ability as the changed jamming environment, the CR technology is introduced.
本文从认知无线电技术特性出发，对认知无线电网络中的功率控制算法进行了较为深入的研究。
From the perspective of characteristic in cognitive radio, this thesis develops a deep research on power control in cognitive radio networks.
认知无线电技术的主要特点，就是根据环境不断调整参数以适应通讯的需求从而提高通讯质量。
The main task of CR is adjusting parameters according to the environment to adapt to the demands of communications and improve its quality.
认知无线电技术已经向“网络与系统”的框架转变，为增强认知能力、降低认知成本，协作手段成为必然。
The view of cognition is being upgraded from cognitive radio to cognitive network and system. The cooperation becomes a powerful tool to improve the capability of cognition and lower the cost.
认知无线电技术的提出，为解决不断增长的无线通信应用需求与日益紧张的无线频谱资源之间的矛盾提供了一种有效的解决途径。
CR has been recognized as an effective solution to the dilemma introduced by the rapid growth of wireless communications and the scarcity of spectrum resources.
认知无线电技术提出了一种新的解决思路，其核心思想就是使无线通信设备具有发现“频谱空洞”并合理利用所发现的“空洞”的能力。
The cognitive radio technology brings a new idea for solving this problem. Its basic idea is to make wireless terminals have the abilities of detecting "spectrum holes" and making full use of them.
OFDM技术将成为未来无线通信中的核心技术，在认知无线电、4G移动通信和无线宽带接入等领域得到广泛的应用。
OFDM technology will become the core technology for wireless communication in the future, OFDM will be widely used in cognition radio, in the 4G mobile communication and the wireless broadband access.
认知无线电的频谱分配技术研究的是如何对检测到的空闲频谱资源进行有效的管理，是认知无线电系统的一项关键技术。
The spectrum allocation technology, which is one of the key technologies of cognitive radio, the research emphasis is how to manage the spectrum resource effectively.
本文首先综述了认知无线电的基本原理，包括其定义、概念模型、主要功能和关键技术。
Firstly, this dissertation summarizes fundamental notions of cognitive radios, including its definition, concept model, main functions and important technologies.
频谱感知是认知无线电系统的关键技术之一，协作频谱感知能够提高频谱感知性能。
Spectrum sensing is one of the key technologies in cognitive radio, and cooperative spectrum sensing can improve the spectrum sensing performance.
信号信息处理的新技术压缩感知，提供了认知无线电中宽带频谱检测的新方案。
Compressed sensing is a novel technology in signal information processing. It offers a new wide-band spectrum detection scheme in cognitive radio.
频谱感知是认知无线电研究的关键技术之一，能量检测法是典型的频谱感知方法。
Spectrum sensing is one of the key technologies in cognitive radio and energy detection is a typical method of it.
本文主要介绍认知无线电的关键技术，并探讨其在煤矿通信中的应用。
This paper describes the key technologies of cognitive radio, and explores its application in the coal mine communications.
高效、可靠地检测频谱空洞是认知无线电研究的重要技术。
Efficient and reliable detection of spectrum holes is an important technology for cognitive radio.
本文研究了认知无线电关键技术之一的频谱检测技术，并对频谱检测技术在无线体域网中的应用进行了分析。
This paper has studied on spectrum sensing technology, one of the key technologies of cognitive radio systems, and its application of wireless body area networks.
认知无线电可以通过动态频谱接入技术来有效的提高频谱的利用率，而在动态频谱接入中信道选择策略的优劣直接影响着系统的性能。
Cognitive radio can effectively improve the utilization of spectrum through dynamic spectrum access technology, in which the channel selection affects directly the performance of the system.
协同通信与认知无线电是未来移动通信的重要技术。
Cooperative communication and cognitive radio are the key candidates for the future mobile communication technologies.
作为认知无线电(CR)技术核心问题的无线频谱资源管理技术是提高认知无线电性能的关键。
As the core question in the Cognitive Radio (CR) technique field, the wireless spectrum resource management technology has the ability to enhance the CR communication system performance.
形成的资源描述体系和管理结构可以成为研究认知无线电资源管理技术的理论概念基础和借鉴支持。
The resources description system and the management structure submitted will become the theory concept foundation of the cr spectrum resources management technology.
检测主用户信号是否存在的频谱检测技术就成为认知无线电系统的关键技术。
It realizes same radio spectrum using by multi-users. So spectrum detection is the key technique for realization of cognitive radio.
信号检测技术是认知无线电中的首要及关键技术之一。
Signal detection is the primary job and the key technology in cognitive radio.
介绍了认知无线电系统中主要的频谱检测技术，对它们的基本原理、实现方法和优缺点等进行了详细分析和讨论。
The important spectrum sensing technologies of CR are introduced, their basic principles, methods and advantages and disadvantages to achieve such a detailed analysis and discussion.
本文首先对认知无线电系统这个大环境的背景、概念、国内外研究现状及关键技术做了详细的分析。
Firstly this thesis introduces the context and concept of cognitive radio, the key technologies of cognitive radio, and the research status at home and abroad on cognitive radio.
本文首先对认知无线电系统这个大环境的背景、概念、国内外研究现状及关键技术做了详细的分析。
Firstly this thesis introduces the context and concept of cognitive radio, the key technologies of cognitive radio, and the research status at home and abroad on cognitive radio.
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