数字阵雷达接收通道简化设计的研究  

The Simple Design on Receiving Channels in Digital Array Radar

作　　者：窦玉江[1] 邵凡麒[2] 余锋[3] 

机构地区：[1]苏州大学电子信息学院,江苏苏州215006 [2]南京电子技术研究所,南京210039 [3]浙江大学仪器科学与工程学系,杭州310027

出　　处：《现代雷达》2013年第1期73-76,共4页Modern Radar

摘　　要：通过分析扩频通信基本原理,探讨了该原理在数字阵雷达接收通道中的应用,即可以实现使用一路宽带接收通道取代多路窄带通道的方法,达到降低成本的目的。与扩频通信并不相同,在雷达接收通道中采用模拟扩频调制,数字解扩的方法,因此在工程实现时更加困难。文中仿真了将两路接收信号扩频调制后合为一路后再解扩为原始信号,且通道间不会相互干扰。最后探讨了此方法在雷达应用时的不利因素和难点。In terms of the theory on the spread spectrum communications. Its application in digital array radar receiving channels is discussed. In this way, the multiply narrow band channels can be replaced by a single wide band channel in order to reduce the cost. It is different from the spread spectrum communications in that the spread modulation in analog domain and demodulation in digital domain are cascaded. So the practical implementation will be more challenging. In simulation, the receiving signals from two channels are individually spread modulated and combined in a single channel. Then the signal is demodulated into two chan- nels. There is no interference between the two channels. At last the disadvantages and difficult points for the application in radar are discussed.

关 键 词：扩频通信 接收通道 正交编码 仿真 

分 类 号：TN914.42[电子电信—通信与信息系统]