摘要
为了适应综合化通信导航识别系统(ICNI)的需求,论文提出基于软件无线电理念的ADF中频数字化信号处理模块的设计方案,给出了该方案中的关键技术和数字处理算法,主要包括:正交解调、罗盘方位解算、罗盘失锁检测的算法设计,并给出了通信接口的设计方法。采用这种方案设计的罗盘具有硬件结构简单、定向速度快以及定向精度高等优点。
In order to satisfy the requirement of integrated communication, navigation and identification system（ICNI）, this paper proposes a design scheme of IF digitized radio compass module based on SDR, and discusses the design and realization method of the key technologies in this module, including the Orthogonal Demodulation, ADF Bearing Calculation and ADF Lock-losing Detection. The design method of the communication interface is also discussed. This type of compass based on the digital signal processing has the advantages of simple hardware structure and compatibility. The experimental results show that the speed and precision of Bearing Calculation are improved greatly.
出处
《信息安全与通信保密》
2008年第4期65-66,70,共3页
Information Security and Communications Privacy
