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.
软件无线电是1992年美国首次提出的一种实现无线通信的新的体系结构。
Software radio is first introduced in 1992 by USA and it is a new architecture for wireless communication.
软件无线电技术是一种实现无线通信的新体系结构。
The software wireless technique is a new system structure which can realize wireless communication.
在现代无线通信系统中，对发射信号进行直接射频调制已成为射频无线电的发展趋势。
In modern wireless communication system, the direct RF-modulation for transmitting signal is a new developing trend of RF radio.
随着近年来软件无线电理论和应用趋于成熟与完善，软件无线电技术已经被越来越广泛地应用于蜂窝通信及各种军用和民用的无线通信系统中。
With the theory getting more matured and completed, SDR technology has been widely used in cellular communication system as well as other civil and military wireless communication systems.
软件无线电技术是近年来出现的新的无线通信设计思想与框架，是无线通信领域的一项突破性关键技术。
The software radios technology is a new design idea and frame for wireless communication, and being a breakthrough for the key technology on the field.
与基带uwb无线电相比，多带OFDM超宽带系统在短距离无线通信中得到了广泛的认可。
Compared to baseband UWB radios, the MultiBand OFDM ultra-wide band system has obtained widespread approval in short-range wireless links.
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.
目前，适合于移动通信、无线通信的无线电频谱资源极为拥挤和宝贵。
At present, the frequency adapting to mobile com munication and wireless communication, is quite crowded and precious.
软件无线电使得无线通信系统具有很好的通用性和灵活性，使系统的互联和升级非常方面。
SDR not only can make the wireless communication system have a good flexibility and generality, but also can make its interlinkage and update of the system very convenient.
无线通信接收机覆盖了无线电通信、电视广播、无线电广播、雷达定位、遥测遥控、卫星通信以及移动通信系统等各个领域。
Wireless communication receiver applies widely in so many areas such as wireless communication, television, broadcast, radar, satellite communications and so on.
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.
实验者通过本实验，不但可以更深入地理解无线通信过程，而且还可以直观地学习软件无线电技术，从而取得更好的学习效果。
Through the experiments, the learner can understand the wireless communication in depth, and also can learn the SDR technique visually, so a greater effect of learning can be achieved.
实验者通过本实验，不但可以更深入地理解无线通信过程，而且还可以直观地学习软件无线电技术，从而取得更好的学习效果。
Through the experiments, the learner can understand the wireless communication in depth, and also can learn the SDR technique visually, so a greater effect of learning can be achieved.
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