【摘要】 为了利用软件无线电技术对天线设备加以控制,使其具有一定的智能化,对基于软件无线电的智能天线技术进行了研究。首先在短波软件无线电通信系统中采用高速DSP器件结合软件算法实现了智能天线,然后对智能天线和普通天线的抗干扰性能进行了比较和仿真实验。结果表明,智能天线可以有效增强有用信号,降低干扰,从而形成最优的方向图。更多还原

【Abstract】 In order to control antenna by using software radio technique and make it have some ’intelligence’ , we have studied the smart antenna technique based on software radio. Firstly, the smart antenna has been realized by using high speed DSP and software algorithm in the HF software radio communication system. Then, a comparison and simulation experiment for the jamming immunity of the smart antenna and popular antenna has been made. The results show that the smart antenna can efficiently strengthen useful signal, decrease interference and form the optimum directivity diagram.更多还原