全数字式阵列接收机在OTH雷达中的应用  

Application of All-digital Array Receiver to OTH Radar

作　　者：吴远斌[1] 包象阳[1] 袁朔[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《现代雷达》2007年第2期73-75,共3页Modern Radar

摘　　要：全数字式接收机是未来雷达接收机的发展方向。目前由于A/D变换器和DSP器件的速度限制,仍未实用化。文中提出了一种先进的全数字式阵列接收机方案,可应用于短波超视距雷达。该方案利用目前商业上可得到的A/D变换器,直接对天线下来的信号进行A/D变换,然后在数字域中进行相干检波,极大地简化了接收机设计,而又能获得极佳的性能。The development of modem radar receiver tends to the trend of all-digital receiver, now the speed of ADC and DSP chip limits its utillization. An advanced all-digital array receiver is developed for an Over-the -horizon radar application. With a current commercially available ADC chip to digitize the amplified signal from a HF antenna without the requirement of a conventional receiver, it greatly simplified the design of array receiver, and can attain very good performance.

关 键 词：超视距雷达 全数字式接收机 中频采样 

分 类 号：TN957.5[电子电信—信号与信息处理]